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1966 United States House of Representatives elections

House elections for the 90th U.S. Congress

Field	Value
election_name	1966 United States House of Representatives elections
country	United States
flag_year	1960
type	legislative
ongoing	no
previous_election	1964 United States House of Representatives elections
previous_year	1964
election_date	November 8, 1966
image_size	x180px
next_election	1968 United States House of Representatives elections
next_year	1968
outgoing_members	89th United States Congress#House of Representatives_3
elected_members	90th United States Congress#House of Representatives_3
seats_for_election	All 435 seats in the United States House of Representatives
majority_seats	218
party1	Democratic Party (US)
image1	John W. McCormack (Speaker of the US House)(b) (1).jpg
leader1	John McCormack
leader_since1	January 10, 1962
leaders_seat1
last_election1	295 seats
seats1	248
seat_change1	47
popular_vote1	26,934,136
percentage1	50.9%
swing1	6.2
party2	Republican Party (US)
image2	Gerald ford 1961 (cropped).jpg
leader2	Gerald Ford
leader_since2	January 3, 1965
leaders_seat2
last_election2	140 seats
seats2	187
seat_change2	47
popular_vote2	25,521,157
percentage2	48.2%
swing2	5.8
map_image	File:The 1966 House Elections in the United States.svg
map_size	320px
map_caption	Results:

title	Speaker
before_election	John McCormack
before_party	Democratic Party (US)
after_election	John McCormack
after_party	Democratic Party (US)

The 1966 United States House of Representatives elections was an election for the United States House of Representatives on November 8, 1966, to elect members to serve in the 90th United States Congress. They occurred in the middle of President Lyndon B. Johnson's second term. As the Vietnam War continued to escalate and race riots exploded in cities across the country, Johnson's popularity had fallen, and the opposition Republican Party was able to gain a net of 47 seats from Johnson's Democratic Party, which nonetheless maintained a clear majority in the House. This was also the first election that occurred after the Voting Rights Act of 1965 became law, the first time since 1870 that a Republican won a House seat in Arkansas, and the first since 1876 that the party did so in South Carolina (after the same in a 1965 special election for the seat).

Republican gains

Alaska's at-large congressional district: four-term Democratic incumbent Ralph Rivers was defeated by Republican State Senator Howard Pollock.
Arizona's 3rd congressional district: sophomore Democrat George F. Senner Jr. was defeated by state legislator Sam Steiger.
Arkansas's 3rd congressional district: lumber executive and Arkansas GOP chair John Paul Hammerschmidt defeated incumbent James William Trimble, becoming the first Republican member of Arkansas' congressional delegation since Reconstruction.
California's 18th congressional district: onetime Olympic gold medalist Bob Mathias defeated seven-term Democratic incumbent Harlan Hagen.
California's 25th congressional district: Charles E. Wiggins defeated incumbent Democrat Ronald B. Cameron.
California's 33rd congressional district: Jerry Pettis defeated incumbent Kenneth W. Dyal.
Michigan’s 2nd congressional district: Marvin Esch defeated incumbent Democrat Weston E. Vivian.
Michigan’s 3rd congressional district: Garry E. Brown defeated incumbent Democrat Paul H. Todd Jr..
Michigan’s 7th congressional district: Donald Riegle defeated incumbent Democrat John C. Mackie.
Michigan’s 11th congressional district: Phillip Ruppe defeated incumbent Democrat Raymond Clevenger.
Michigan’s 19th congressional district: Jack H. McDonald defeated incumbent Democrat Billie S. Farnum.
Texas's 7th congressional district: businessman and 1964 U.S. Senate candidate George H. W. Bush defeated Democratic challenger Frank Briscoe for the seat vacated by John Dowdy (whose district had been renumbered the second).
Texas's 18th congressional district: Bob Price succeeded retiring Democrat Walter E. Rogers by defeating Dee Miller.

Special elections

Elections are listed by date and district.

|- ! | Herbert Covington Bonner | | Democratic | 1940 | | Incumbent died November 7, 1965. New member elected February 5, 1966. Democratic hold; winner was later re-elected. | nowrap | {{Plainlist|

Walter B. Jones Sr. (Democratic) 60.3%
John Porter East (Republican) 39.7%

|- ! | John Lindsay | | Republican | 1958 | | Incumbent resigned December 31, 1965 to become Mayor of New York City. New member elected February 8, 1966. Republican hold; winner was later re-elected. | nowrap | {{Plainlist|

Theodore R. Kupferman (Republican) 46.4%
Orin Lehman (Democratic) 45.4%
Jeffrey St. John (Conservative) 8.2%

|- ! | Albert Thomas | | Democratic | 1936 | | Incumbent died February 15, 1966. New member elected March 26, 1966. Democratic hold; winner did not seek re-election. | nowrap | {{Plainlist|

Lera Millard Thomas (Democratic) 74%
Louis Leman (Republican) 26%

|- ! | John F. Baldwin Jr. | | Republican | 1954 | | Incumbent died March 9, 1966. New member elected June 7, 1966. Democratic gain; winner was later re-elected. | nowrap | {{Plainlist|

Jerome Waldie (Democratic) 51.2%
Frank Newman (Republican) 31.2%
John A. Richardson (Republican) 10.6%
Leo A. Costa (Democratic) 4.3%
Doris G. Johnston (Republican) 1.6%
Talluk B. Wrakstad (Republican) 1.2%

Overall results

411 incumbent members sought reelection, but 8 were defeated in primaries and 41 defeated in the general election for a total of 362 incumbents winning.

Democrat	Republican

Seats	Popular Vote	[1964](1964-united-states-house-of-representatives-elections)	1966	Change	Strength	Vote	%
Democratic Party	295	248	47	57.0%	26,934,136	50.9%	6.2%
Republican Party	140	187	47	43.0%	25,521,157	48.2%	5.8%
Conservative Party	–	–	–	–	208,756	0.4%	0.3%
Independent	–	–	–	–	85,641	0.2%
Liberal Party	–	–	–	–	75,303	0.1%	0.1%
Peace and Freedom Party	–	–	–	–	16,922
American Independent Party	–	–	–	–	14,461
Constitution Party	–	–	–	–	11,110
Socialist Labor Party	–	–	–	–	5,771
Independent-Socialist Party	–	–	–	–	3,502
New Hispano Party	–	–	–	–	2,263
People's Choice Party	–	–	–	–	1,299
Socialist Workers Party	–	–	–	–	1,014
Veteran Party	–	–	–	–	939
Others	–	–	–	–	29,701	0.1%	0.1%

Source: Election Statistics – Office of the Clerk

1 One vacancy due to refusal of House to seat Adam Clayton Powell Jr. (D-New York)

House seats by party holding plurality in state

| [[File:90 us house changes.png|thumb|450px|

Alabama

|- ! | Jack Edwards | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Jack Edwards (Republican) 65.8%
Warren L. Finch (Democratic) 34.2%

|- ! | William L. Dickinson | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William L. Dickinson (Republican) 54.6%
Robert F. Whaley (Democratic) 45.4%

|- ! | George W. Andrews | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

George W. Andrews (Democratic) Unopposed

|- ! | Glenn Andrews | | Republican | 1964 | | Incumbent lost re-election. Democratic gain. | nowrap | {{Plainlist|

Bill Nichols (Democratic) 58.4%
Glenn Andrews (Republican) 41.6%

|- ! | Armistead I. Selden Jr. | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Armistead I. Selden Jr. (Democratic) Unopposed

|- ! | John H. Buchanan Jr. | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John H. Buchanan Jr. (Republican) 63.4%
Walter Emmett Perry (Democratic) 36.6%

|- ! | James D. Martin | | Republican | 1964 | | Incumbent retired to run for Governor of Alabama. Democratic gain. | nowrap | {{Plainlist|

Tom Bevill (Democratic) 64.4%
Wayman Sherrer (Republican) 35.6%

|- ! | Robert E. Jones Jr. | | Democratic | 1947 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Robert E. Jones Jr. (Democratic) 72.2%
Don Mayhall (Republican) 27.8%

Alaska

Main article: 1966 United States House of Representatives election in Alaska

State House Results

|- ! | Ralph Rivers | | Democratic | 1958 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Howard Pollock (Republican) 51.6%
Ralph Rivers (Democratic) 48.4%

Arizona

|- ! | John Jacob Rhodes | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

John Jacob Rhodes (Republican) 67.1%
L. Alton Riggs (Democratic) 32.9%

|- ! | Mo Udall | | Democratic | 1961 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Mo Udall (Democratic) 59.6%
G. Alfred McGinnis (Republican) 40.4%

|- ! | George F. Senner Jr. | | Democratic | 1962 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Sam Steiger (Republican) 56.9%
George F. Senner Jr. (Democratic) 43.1%

Arkansas

|- ! | Ezekiel C. Gathings | | Democratic | 1938 | Incumbent re-elected. | nowrap | {{Plainlist|

Ezekiel C. Gathings (Democratic) Unopposed

|- ! | Wilbur Mills | | Democratic | 1938 | Incumbent re-elected. | nowrap | {{Plainlist|

Wilbur Mills (Democratic) Unopposed

|- ! | James William Trimble | | Democratic | 1944 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

John Paul Hammerschmidt (Republican) 53.1%
James William Trimble (Democratic) 46.9%

|- ! | Oren Harris | | Democratic | 1940 | | Incumbent resigned to become district judge. Democratic hold. | nowrap | {{Plainlist|

David Pryor (Democratic) 65.0%
Lynn Lowe (Republican) 35.0%

California

Main article: 1966 United States House of Representatives elections in California

|- ! | Don Clausen | | Republican | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Don Clausen (Republican) 65.1%
Thomas T. Storer (Democratic) 34.9%

|- ! | Bizz Johnson | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Bizz Johnson (Democratic) 70.9%
William H. Romack Jr. (Republican) 29.1%

|- ! | John E. Moss | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

John E. Moss (Democratic) 67.5%
Terry G. Feil (Republican) 32.5%

|- ! | Robert Leggett | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert Leggett (Democratic) 59.5%
Tom McHatton (Republican) 40.5%

|- ! | Phillip Burton | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Phillip Burton (Democratic) 71.3%
Terry R. Macken (Republican) 28.7%

|- ! | William S. Mailliard | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

William S. Mailliard (Republican) 76.6%
Le Rue Grim (Democratic) 23.4%

|- ! | Jeffery Cohelan | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Jeffery Cohelan (Democratic) 64.4%
Malcolm M. Champlin (Republican) 35.6%

|- ! | George P. Miller | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

George P. Miller (Democratic) 65.4%
Raymond P. Britton (Republican) 34.6%

|- ! | Don Edwards | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Don Edwards (Democratic) 63.2%
Wilbur G. Durkee (Republican) 36.8%

|- ! | Charles Gubser | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Gubser (Republican) 69.1%
George Leppert (Democratic) 30.9%

|- ! | J. Arthur Younger | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

J. Arthur Younger (Republican) 59.4%
W. Mark Sullivan (Democratic) 40.6%

|- ! | Burt Talcott | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Burt Talcott (Republican) 77.3%
Gerald V. Barron (Democratic) 22.7%

|- ! | Charles M. Teague | | Republican | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles M. Teague (Republican) 67.5%
Charles A. Storke (Democratic) 32.5%

|- ! | Jerome Waldie | | Democratic | 1966 | Incumbent re-elected. | nowrap | {{Plainlist|

Jerome Waldie (Democratic) 56.4%
Frank Newman (Republican) 43.6%

|- ! | John J. McFall | | Democratic | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

John J. McFall (Democratic) 57.0%
Sam Van Dyken (Republican) 43.0%

|- ! | B. F. Sisk | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

B. F. Sisk (Democratic) 71.4%
Cecil F. White (Republican) 28.6%

|- ! | Cecil R. King | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Cecil R. King (Democratic) 60.8%
Don Cortum (Republican) 39.2%

|- ! | Harlan Hagen | | Democratic | 1952 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Bob Mathias (Republican) 55.9%
Harlan Hagen (Democratic) 44.1%

|- ! | Chet Holifield | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Chet Holifield (Democratic) 62.3%
William R. Sutton (Republican) 37.7%

|- ! | H. Allen Smith | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

H. Allen Smith (Republican) 73.4%
Raymond Freschi (Democratic) 26.6%

|- ! | Augustus Hawkins | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Augustus Hawkins (Democratic) 84.8%
Rayfield Lundy (Republican) 15.2%

|- ! | James C. Corman | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

James C. Corman (Democratic) 53.5%
Bob Cline (Republican) 46.5%

|- ! | Del M. Clawson | | Republican | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Del M. Clawson (Republican) 67.4%
Ed O'Connor (Democratic) 32.6%

|- ! | Glenard P. Lipscomb | | Republican | 1953 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Glenard P. Lipscomb (Republican) 76.3%
Earl G. McNall (Democratic) 23.7%

|- ! | Ronald B. Cameron | | Democratic | 1962 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Charles E. Wiggins (Republican) 52.6%
Ronald B. Cameron (Democratic) 47.4%

|- ! | Thomas M. Rees | | Democratic | 1965 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas M. Rees (Democratic) 62.3%
Irving Teichner (Republican) 37.7%

|- ! | Edwin Reinecke | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Edwin Reinecke (Republican) 65.3%
John A. "Jack" Howard (Democratic) 34.7%

|- ! | Alphonzo E. Bell Jr. | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Alphonzo E. Bell Jr. (Republican) 72.3%
Lawrence "Lorry" Sherman (Democratic) 27.7%

|- ! | George Brown Jr. | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

George Brown Jr. (Democratic) 51.1%
Bill Orozco (Republican) 48.9%

|- ! | Edward R. Roybal | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Edward R. Roybal (Democratic) 66.4%
Henri O'Bryant Jr. (Republican) 33.6%

|- ! | Charles H. Wilson | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles H. Wilson (Democratic) 63.4%
Theodore Smith (Republican) 36.6%

|- ! | Craig Hosmer | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Craig Hosmer (Republican) 80.1%
Tracy Odell (Democratic) 19.9%

|- ! | Kenneth W. Dyal | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Jerry Pettis (Republican) 53.5%
Kenneth W. Dyal (Democratic) 46.5%

|- ! | Richard T. Hanna | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard T. Hanna (Democratic) 55.8%
Frank LaMagna (Republican) 44.2%

|- ! | James B. Utt | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

James B. Utt (Republican) 73.1%
Thomas B. Lenhart (Democratic) 26.9%

|- ! | Bob Wilson | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Bob Wilson (Republican) 72.9%
William C. Godfrey (Democratic) 27.1%

|- ! | Lionel Van Deerlin | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Lionel Van Deerlin (Democratic) 61.2%
Samuel S. Vener (Republican) 38.8%

|- ! | John V. Tunney | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John V. Tunney (Democratic) 54.5%
Robert R. Barry (Republican) 45.5%

Colorado

|- ! | Byron G. Rogers | | Democratic | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

Byron G. Rogers (Democratic) 56.0%
Greg Pearson (Republican) 44.0%

|- ! | Roy H. McVicker | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Donald G. Brotzman (Republican) 51.7%
Roy H. McVicker (Democratic) 47.1%
Joe Lucero (New Hispano) 1.2%

|- ! | Frank Evans | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank Evans (Democratic) 51.7%
David W. Enoch (Republican) 48.3%

|- ! | Wayne N. Aspinall | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Wayne N. Aspinall (Democratic) 58.6%
James Paul Johnson (Republican) 41.4%

Connecticut

|- ! | Emilio Q. Daddario | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Emilio Q. Daddario (Democratic) 58.0%
John L. Bonee (Republican) 41.2%
Donald B. LaCroix (People's Choice) 0.8%

|- ! | William St. Onge | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

William St. Onge (Democratic) 56.2%
Joseph H. Goldberg (Republican) 43.2%
Daniel R. Tarasevich (Veteran) 0.6%

|- ! | Robert Giaimo | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert Giaimo (Democratic) 53.1%
Stelio Salmona (Republican) 41.5%
Robert M. Cook (American Independent) 5.4%

|- ! | Donald J. Irwin | | Democratic | 1958 1960 (lost) 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Donald J. Irwin (Democratic) 51.0%
Abner W. Sibal (Republican) 49.0%

|- ! | John S. Monagan | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

John S. Monagan (Democratic) 59.1%
Romeo G. Petroni (Republican) 40.9%

|- ! | Bernard F. Grabowski | | Democratic | 1962 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Thomas Meskill (Republican) 48.9%
Bernard F. Grabowski (Democratic) 47.7%
Stephen Minot (American Independent) 3.4%

Delaware

Main article: 1966 United States House of Representatives election in Delaware

|- ! | Harris McDowell | | Democratic | 1958 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

William Roth (Republican) 55.8%
Harris McDowell (Democratic) 44.2%

Florida

Florida redistricted to adjust for demographic changes; in addition to minor boundary changes a district was removed from northern Florida, and Broward County was broken out into its own district.

Don Fuqua (Democratic) 76.3%
Harold Hill (Republican) 23.7%

|- ! | James A. Haley | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

James A. Haley (Democratic) 63.2%
Joe Z. Lovingood (Republican) 36.8%

|- ! | William C. Cramer Redistricted from the | | Republican | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

William C. Cramer (Republican) 70.8%
Roy L. Reynolds (Democratic) 29.2%

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

J. Herbert Burke (Republican) 61.1%
Joe Varon (Democratic) 38.9%

|- ! | Dante Fascell Redistricted from the | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Dante Fascell (Democratic) 56.9%
Mike Thompson (Republican) 43.1%

Georgia

|- ! | G. Elliott Hagan | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

G. Elliott Hagan (Democratic) 58.0%
Porter Carswell (Republican) 42.0%

|- ! | Bo Callaway | | Republican | 1964 | | Incumbent retired to run for governor. Democratic gain. | nowrap | {{Plainlist|

Jack Brinkley (Democratic) 61.8%
Billy J. Mixon (Republican) 38.2%

|- ! | James MacKay | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Benjamin B. Blackburn (Republican) 50.2%
James MacKay (Democratic) 49.8%

|- ! | Charles L. Weltner | | Democratic | 1962 | | Incumbent withdrew and was replaced on the ballot. Republican gain. | nowrap | {{Plainlist|

Fletcher Thompson (Republican) 60.1%
Archie L. Lindsey (Democratic) 39.9%

|- ! | John Flynt | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

John Flynt (Democratic) 67.9%
G. Paul Jones Jr. (Republican) 32.1%

|- ! | John William Davis | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

John William Davis (Democratic) 65.0%
Edward Y. Chapin (Republican) 35.0%

|- ! | J. Russell Tuten | | Democratic | 1962 | | Incumbent lost renomination. Democratic hold. | nowrap | {{Plainlist|

W. S. Stuckey Jr. (Democratic) 77.0%
Mack Mattingly (Republican) 23.0%

|- ! | Robert Grier Stephens Jr. | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert Grier Stephens Jr. (Democratic) 65.5%
Leroy H. Simkins (Republican) 34.5%

Hawaii

Patsy Mink (Democratic) 34.3%
Spark Matsunaga (Democratic) 34.1%
John Carroll (Republican) 16.4%
James Kealoha (Republican) 15.2%

Idaho

|- ! | Compton I. White Jr. | | Democratic | 1962 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Jim McClure (Republican) 51.8%
Compton I. White Jr. (Democratic) 48.2%

|- ! | George V. Hansen | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

George V. Hansen (Republican) 70.3%
A. W. Brunt (Democratic) 29.7%

Illinois

|- ! | William L. Dawson | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

William L. Dawson (Democratic) 72.6%
David R. Reed (Republican) 27.4%

|- ! | Barratt O'Hara | | Democratic | 1948 1950 (lost) 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Barratt O'Hara (Democratic) 59.2%
Philip G. Bixler (Republican) 40.8%

|- ! | William T. Murphy | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

William T. Murphy (Democratic) 52.0%
Alfred F. Manion (Republican) 48.0%

|- ! | Ed Derwinski | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Ed Derwinski (Republican) 72.0%
Ray J. Rybacki (Democratic) 28.0%

|- ! | John C. Kluczynski | | Democratic | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

John C. Kluczynski (Democratic) 56.2%
Walter K. Kiltz (Republican) 43.8%

|- ! | Daniel J. Ronan | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Daniel J. Ronan (Democratic) 57.0%
Samuel A. DeCaro (Republican) 43.0%

|- ! | Frank Annunzio | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank Annunzio (Democratic) 80.9%
Joseph D. Day (Republican) 19.1%

|- ! | Dan Rostenkowski | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Dan Rostenkowski (Democratic) 59.9%
John H. Leszynski (Republican) 40.1%

|- ! | Sidney R. Yates | | Democratic | 1948 1962 (retired) 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Sidney R. Yates (Democratic) 59.9%
Richard C. Storey Jr. (Republican) 40.1%

|- ! | Harold R. Collier | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Harold R. Collier (Republican) 69.4%
Frank J. Jirka Jr. (Democratic) 30.6%

|- ! | Roman Pucinski | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Roman Pucinski (Democratic) 50.9%
John J. Hoellen Jr. (Republican) 49.1%

|- ! | Robert McClory | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert McClory (Republican) 69.1%
Herbert L. Stern (Democratic) 30.9%

|- ! | Donald Rumsfeld | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Donald Rumsfeld (Republican) 76.0%
James L. McCabe (Democratic) 24.0%

|- ! | John N. Erlenborn | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John N. Erlenborn (Republican) 71.7%
Kenneth McCleary (Democratic) 28.3%

|- ! | Charlotte Thompson Reid | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Charlotte Thompson Reid (Republican) 72.3%
Selwyn L. Boyer (Democratic) 27.7%

|- ! | John B. Anderson | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

John B. Anderson (Republican) 73.0%
Robert M. Whiteford (Democratic) 27.0%

|- ! | Leslie C. Arends | | Republican | 1934 | Incumbent re-elected. | nowrap | {{Plainlist|

Leslie C. Arends (Republican) 67.4%
Bernard J. Hughes (Democratic) 32.6%

|- ! | Robert H. Michel | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert H. Michel (Republican) 58.4%
Thomas V. Cassidy (Democratic) 41.6%

|- ! | Gale Schisler | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Tom Railsback (Republican) 52.3%
Gale Schisler (Democratic) 47.7%

|- ! | Paul Findley | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Paul Findley (Republican) 62.2%
Richard R. Wolfe (Democratic) 37.8%

|- ! | Kenneth J. Gray | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Kenneth J. Gray (Democratic) 56.2%
G. R. Beckmeyer (Republican) 43.8%

|- ! | William L. Springer | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William L. Springer (Republican) 63.3%
Cameron B. Satterthwaite (Democratic) 36.7%

|- ! | George E. Shipley | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

George E. Shipley (Democratic) 56.4%
Leslie N. Jones (Republican) 43.6%

|- ! | Melvin Price | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

Melvin Price (Democratic) 71.5%
John S. Guthrie (Republican) 28.5%

Indiana

Indiana redistricted for this election, election boundary changes forced two Republican incumbents into the same district while creating a new district that was won by another Republican.

|- ! | Ray Madden | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Ray Madden (Democratic) 58.3%
Albert Harrigan (Republican) 41.7%

|- ! | Charles A. Halleck | | Republican | 1935 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Charles A. Halleck (Republican) 57.5%
Ralph G. McFadden (Democratic) 42.5%

|- ! | John Brademas | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

John Brademas (Democratic) 55.8%
Robert A. Ehlers (Republican) 44.2%

|- ! | E. Ross Adair | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

E. Ross Adair (Republican) 63.5%
J. Byron Hayes (Democratic) 36.5%

|- ! | J. Edward Roush | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

J. Edward Roush (Democratic) 51.1%
Kenneth Bowman (Republican) 48.9%

|- ! | William G. Bray Redistricted from the | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William G. Bray (Republican) 65.7%
James M. Nicholson (Democratic) 33.6%
Henry W. Holt (Independent) 0.7%

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

John T. Myers (Republican) 54.3%
Elden C. Tipton (Democratic) 45.7%

|- ! | Winfield K. Denton | | Democratic | 1954 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Roger H. Zion (Republican) 51.1%
Winfield K. Denton (Democratic) 48.9%

|- ! | Lee Hamilton | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Lee Hamilton (Democratic) 53.8%
John W. Lewis (Republican) 46.2%

Richard L. Roudebush (Republican) 63.4%
Robert H. Staton (Democratic) 36.6%

|- ! | Andrew Jacobs Jr. | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Andrew Jacobs Jr. (Democratic) 55.7%
Paul R. Oakes (Republican) 44.3%

Iowa

|- ! | John R. Schmidhauser | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Fred Schwengel (Republican) 51.3%
John R. Schmidhauser (Democratic) 47.9%
Merle M. Thayer (American Constitution) 0.8%

|- ! | John Culver | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John Culver (Democratic) 54.0%
Robert M. L. Johnson (Republican) 46.0%

|- ! | H. R. Gross | | Republican | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

H. R. Gross (Republican) 62.0%
L. A. Pat Touchae (Democratic) 38.0%

|- ! | Bert Bandstra | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

John Henry Kyl (Republican) 51.7%
Bert Bandstra (Democratic) 48.3%

|- ! | Neal Smith | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Neal Smith (Democratic) 60.4%
Don Mahon (Republican) 39.0%
Robbins Risher (American Constitution) 0.6%

|- ! | Stanley L. Greigg | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Wiley Mayne (Republican) 57.4%
Stanley L. Greigg (Democratic) 42.3%
Lee E. Smith (American Constitution) 0.3%

|- ! | John R. Hansen | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

William J. Scherle (Republican) 59.0%
John R. Hansen (Democratic) 40.9%
Gordon Risher (American Constitution) 0.1%

Kansas

|- ! | Bob Dole | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Bob Dole (Republican) 68.6%
Berniece Henkle (Democratic) 31.4%

|- ! | Chester L. Mize | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Chester L. Mize (Republican) 62.8%
Harry G. Wiles (Democratic) 37.2%

|- ! | Robert Ellsworth | | Republican | 1960 | | Incumbent retired to run for U.S. senator. Republican hold. | nowrap | {{Plainlist|

Larry Winn (Republican) 52.9%
Marvin E. Rainey (Democratic) 45.0%
Harold H. Shomber (Conservative) 2.1%

|- ! | Garner E. Shriver | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Garner E. Shriver (Republican) 68.7%
Paul H. Gerling (Democratic) 31.3%

|- ! | Joe Skubitz | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Joe Skubitz (Republican) 60.9%
Delno L. Bass (Democratic) 39.1%

Kentucky

|- ! | Frank Stubblefield | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank Stubblefield (Democratic) 70.6%
Richard Nicholson (Republican) 29.4%

|- ! | William Natcher | | Democratic | 1953 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

William Natcher (Democratic) 58.9%
R. Douglas Ford (Republican) 41.1%

|- ! | Charles R. Farnsley | | Democratic | 1964 | | Incumbent retired. Republican gain. | nowrap | {{Plainlist|

William Cowger (Republican) 59.0%
Norbert Blume (Democratic) 41.0%

|- ! | Frank Chelf | | Democratic | 1944 | | Incumbent retired, but replaced John Moloney on the ballot after he died 2 days before the election. Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Gene Snyder (Republican) 53.9%
Frank Chelf (Democratic) 45.9%
John J. Moloney (write-in) 0.1%

|- ! | Tim Lee Carter | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Tim Lee Carter (Republican) 75.4%
Eugene C. Harter Jr. (Democratic) 24.6%

|- ! | John C. Watts | | Democratic | 1951 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

John C. Watts (Democratic) 65.0%
William Hendren (Republican) 35.0%

|- ! | Carl D. Perkins | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Carl D. Perkins (Democratic) 68.9%
C. F. See (Republican) 31.1%

Louisiana

|- ! | F. Edward Hébert | | Democratic | 1940 | Incumbent re-elected. | nowrap | {{Plainlist|

F. Edward Hébert (Democratic) Unopposed

|- ! | Hale Boggs | | Democratic | 1940 1942 (lost) 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

Hale Boggs (Democratic) 68.6%
Leonard L. Limes (Republican) 31.4%

|- ! | Edwin E. Willis | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Edwin E. Willis (Democratic) 59.7%
Hall Lyons (Republican) 40.3%

|- ! | Joe Waggonner | | Democratic | 1961 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Joe Waggonner (Democratic) Unopposed

|- ! | Otto Passman | | Democratic | 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

Otto Passman (Democratic) Unopposed

|- ! | James H. Morrison | | Democratic | 1942 | | Incumbent lost renomination. Democratic hold. | nowrap | {{Plainlist|

John Rarick (Democratic) 76.6%
Crayton G. Hall (Republican) 23.4%

|- ! | Edwin Edwards | | Democratic | 1965 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Edwin Edwards (Democratic) Unopposed

|- ! | Speedy Long | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Speedy Long (Democratic) Unopposed

Maine

|- ! | Stanley R. Tupper | | Republican | 1960 | | Incumbent retired. Democratic gain. | nowrap | {{Plainlist|

Peter Kyros (Democratic) 50.4%
Peter A. Garland (Republican) 45.2%
Thomas L. Maynard (Independent) 4.4%

|- ! | William Hathaway | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William Hathaway (Democratic) 56.8%
Howard M. Foley (Republican) 43.2%

Maryland

Main article: 1966 United States House of Representatives elections in Maryland

Maryland redistricted its at-large district into an 8th district around Montgomery County, managing to adjust boundaries so no existing incumbents were displaced.

|- ! | Rogers Morton | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Rogers Morton (Republican) 71.4%
Harry C. Byrd (Democratic) 28.6%

|- ! | Clarence Long | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Clarence Long (Democratic) 69.3%
Paul T. McHenry Jr. (Republican) 30.7%

|- ! | George Hyde Fallon | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

George Hyde Fallon (Democratic) 74.3%
G. Neilson Sigler (Republican) 25.7%

|- ! | Hervey Machen | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Hervey Machen (Democratic) 53.9%
Lawrence Hogan (Republican) 46.1%

|- ! | Charles Mathias | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Mathias (Republican) 70.9%
Walter G. Finch (Democratic) 29.1%

|- ! | Samuel Friedel | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Samuel Friedel (Democratic) 76.0%
Stephen L. Rosenstein (Republican) 24.0%

|- ! | Carlton R. Sickles Redistricted from the | | Democratic | 1962 | | Incumbent retired to run for governor. Republican gain. | nowrap | {{Plainlist|

Gilbert Gude (Republican) 54.4%
Royce Hanson (Democratic) 45.6%

Massachusetts

|- ! | Philip J. Philbin | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Philip J. Philbin (Democratic) 71.0%
Howard A. Miller Jr. (Republican) 29.0%

|- ! | F. Bradford Morse | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

F. Bradford Morse (Republican) 74.8%
Charles N. Tsapatsaris (Democratic) 25.2%

|- ! | William H. Bates | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William H. Bates (Republican) 65.7%
Daniel L. Parent (Democratic) 34.3%

|- ! | Torbert Macdonald | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Torbert Macdonald (Democratic) 74.5%
Gordon F. Hughes (Republican) 25.5%

|- ! | Joseph W. Martin Jr. | | Republican | 1924 | | Incumbent lost renomination. Republican hold. | nowrap | {{Plainlist|

Margaret Heckler (Republican) 51.1%
Patrick H. Harrington Jr. (Democratic) 48.9%

|- ! | James A. Burke | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

James A. Burke (Democratic) 74.8%
James L. Hofford (Republican) 25.2%

|- ! | Hastings Keith | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Hastings Keith (Republican) 55.0%
Edward F. Harrington (Democratic) 45.0%

Michigan

|- ! | John Conyers | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John Conyers (Democratic) 84.2%
Rhecha R. Ross (Republican) 15.8%

|- ! | Weston E. Vivian | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Marvin L. Esch (Republican) 51.0%
Weston E. Vivian (Democratic) 49.0%

|- ! | Paul H. Todd Jr. | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Garry E. Brown (Republican) 52.2%
Paul H. Todd Jr. (Democratic) 47.8%

|- ! | J. Edward Hutchinson | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

J. Edward Hutchinson (Republican) 67.8%
John V. Martin (Democratic) 32.2%

|- ! | Gerald Ford | | Republican | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Gerald Ford (Republican) 68.4%
James Mathew Catchick (Democratic) 31.6%

|- ! | Charles E. Chamberlain | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles E. Chamberlain (Republican) 67.3%
Lee H. Wenke (Democratic) 32.7%

|- ! | John C. Mackie | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Donald Riegle (Republican) 54.1%
John C. Mackie (Democratic) 45.9%

|- ! | R. James Harvey | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

R. James Harvey (Republican) 69.9%
Wager F. Clunis (Democratic) 30.1%

|- ! | Robert P. Griffin | | Republican | 1956 | | Resigned to become U.S. senator. Republican hold. | nowrap | {{Plainlist|

Guy Vander Jagt (Republican) 66.7%
Henry J. Dongvillo (Democratic) 33.3%

|- ! | Al Cederberg | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Al Cederberg (Republican) 67.4%
Hubert C. Evans (Democratic) 32.6%

|- ! | Raymond F. Clevenger | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Philip Ruppe (Republican) 51.8%
Raymond F. Clevenger (Democratic) 48.2%

|- ! | James G. O'Hara | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

James G. O'Hara (Democratic) 65.1%
Patrick J. Driscoll (Republican) 34.9%

|- ! | Charles Diggs | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Diggs (Democratic) 83.0%
Frank Daniels (Republican) 17.0%

|- ! | Lucien Nedzi | | Democratic | 1961 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Lucien Nedzi (Democratic) 59.7%
William J. Kennedy (Republican) 40.3%

|- ! | William D. Ford | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William D. Ford (Democratic) 67.8%
Arpo Yemen (Republican) 32.2%

|- ! | John Dingell | | Democratic | 1955 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

John Dingell (Democratic) 62.7%
John T. Dempsey (Republican) 37.3%

|- ! | Martha Griffiths | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Martha Griffiths (Democratic) 69.2%
William P. Harrington (Republican) 30.8%

|- ! | William Broomfield | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

William Broomfield (Republican) 67.8%
William H. Merrill (Democratic) 32.2%

|- ! | Billie S. Farnum | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Jack H. McDonald (Republican) 57.0%
Billie S. Farnum (Democratic) 43.0%

Minnesota

|- ! | Al Quie | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Al Quie (Republican) 65.9%
George Daley (DFL) 34.1%

|- ! | Ancher Nelsen | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Ancher Nelsen (Republican) 66.2%
Charles M. Christensen (DFL) 33.8%

|- ! | Clark MacGregor | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Clark MacGregor (Republican) 65.4%
Elva D. Walker (DFL) 34.6%

|- ! | Joseph Karth | | DFL | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph Karth (DFL) 53.4%
Stephen Maxwell (Republican) 46.6%

|- ! | Donald M. Fraser | | DFL | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Donald M. Fraser (DFL) 59.7%
William L. Hathaway (Republican) 40.3%

|- ! | Alec G. Olson | | DFL | 1962 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

John M. Zwach (Republican) 51.4%
Alec G. Olson (DFL) 48.6%

|- ! | Odin Langen | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Odin Langen (Republican) 63.2%
Keith C. Davison (DFL) 36.8%

|- ! | John Blatnik | | DFL | 1946 | Incumbent re-elected. | nowrap | John Blatnik (DFL) Unopposed

Mississippi

|- ! | Thomas Abernethy | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas Abernethy (Democratic) 68.8%
William Alexander (Independent) 21.3%
Dock Drummond (Independent) 9.9%

|- ! | Jamie Whitten | | Democratic | 1941 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Jamie Whitten (Democratic) 83.5%
Seelig Wise (Republican) 16.5%

|- ! | John Bell Williams | | Democratic | 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

John Bell Williams (Democratic) 82.4%
Emma Sanders (Independent) 17.6%

|- ! | Prentiss Walker | | Republican | 1964 | | Incumbent retired to run for U.S. Senator. Democratic gain. | nowrap | {{Plainlist|

Sonny Montgomery (Democratic) 65.3%
Lewis McAllister (Republican) 32.6%
Sterling P. Davis (Independent) 2.2%

|- ! | William M. Colmer | | Democratic | 1932 | Incumbent re-elected. | nowrap | {{Plainlist|

William M. Colmer (Democratic) 70.0%
James M. Moye (Republican) 30.0%

Missouri

|- ! | Frank M. Karsten | | Democratic | 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank M. Karsten (Democratic) 63.9%
Robert L. Sharp (Republican) 36.1%

|- ! | Thomas B. Curtis | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas B. Curtis (Republican) 66.2%
William B. Milius (Democratic) 33.8%

|- ! | Leonor Sullivan | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Leonor Sullivan (Democratic) 71.1%
Homer McCracken (Republican) 28.9%

|- ! | William J. Randall | | Democratic | 1959 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

William J. Randall (Democratic) 60.9%
Forest Nave Jr. (Republican) 39.1%

|- ! | Richard W. Bolling | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard W. Bolling (Democratic) 61.2%
Willis E. Salyers (Republican) 38.8%

|- ! | William R. Hull Jr. | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

William R. Hull Jr. (Democratic) 58.0%
John L. Leims (Republican) 42.0%

|- ! | Durward G. Hall | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Durward G. Hall (Republican) 62.3%
Arch M. Skelton (Democratic) 37.7%

|- ! | Richard H. Ichord Jr. | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard H. Ichord Jr. (Democratic) 58.1%
Ben A. Rogers (Republican) 41.9%

|- ! | William L. Hungate | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William L. Hungate (Democratic) 55.3%
Anthony C. Schroeder (Republican) 44.7%

|- ! | Paul C. Jones | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Paul C. Jones (Democratic) 61.0%
William Bruckerhoff (Republican) 39.0%

Montana

|- ! | Arnold Olsen | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Arnold Olsen (Democratic) 50.8%
Dick Smiley (Republican) 49.2%

|- ! | James F. Battin | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

James F. Battin (Republican) 60.2%
John Melcher (Democratic) 39.8%

Nebraska

|- ! | Clair A. Callan | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Robert V. Denney (Republican) 51.2%
Clair A. Callan (Democratic) 48.8%

|- ! | Glenn Cunningham | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Glenn Cunningham (Republican) 64.2%
Richard Fellman (Democratic) 35.8%

|- ! | David Martin | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

David Martin (Republican) 73.0%
John Homan (Democratic) 27.0%

Nevada

|- ! | Walter S. Baring Jr. | | Democratic | 1948 1952 (lost) 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Walter S. Baring Jr. (Democratic) 67.6%
Ralph L. Kraemer (Republican) 32.4%

New Hampshire

|- ! | J. Oliva Huot | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Louis C. Wyman (Republican) 56.2%
J. Oliva Huot (Democratic) 43.8%

|- ! | James Colgate Cleveland | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

James Colgate Cleveland (Republican) 66.8%
William H. Barry Jr. (Democratic) 33.2%

New Jersey

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

John E. Hunt (Republican) 51.3%
Michael J. Piarulli (Democratic) 46.2%
Elliott G. Heard Jr. (Independent) 1.4%
Joseph V. Hayden (Conservative) 0.7%
Dominic W. Doganiero (Socialist Labor) 0.1%
Frederick L. Compton (Peace Equal Rights) 0.1%

|- ! | Thomas C. McGrath Jr. | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Charles W. Sandman Jr. (Republican) 51.5%
Thomas C. McGrath Jr. (Democratic) 46.9%
Albert Ronis (Socialist Labor) 0.9%
Lindwood W. Erickson Jr. (Conservative) 0.7%

|- ! | James J. Howard | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

James J. Howard (Democratic) 52.7%
James M. Coleman (Republican) 46.6%
Martin A. Watkins (Peace Equal Rights) 0.7%

|- ! | Frank Thompson | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank Thompson (Democratic) 56.2%
Ralph Clark Chandler (Republican) 43.5%
Joseph J. Frank (Socialist Labor) 0.3%

|- ! | Peter Frelinghuysen Jr. | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Peter Frelinghuysen Jr. (Republican) 70.8%
Carter Jefferson (Democratic) 27.1%
Robert G. Wright (Conservative) 2.2%

|- ! | William T. Cahill Redistricted from the | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

William T. Cahill (Republican) 66.9%
Walter Dubrow (Democratic) 30.7%
Malcolm C. McWeeney (Conservative) 1.8%
Nathan Robinson (Peace Equal Rights) 0.5%
Bernardo S. Doganiero (Socialist Labor) 0.2%

|- ! | William B. Widnall | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William B. Widnall (Republican) 66.4%
Robert E. Hamer (Democratic) 33.6%

|- ! | Charles S. Joelson | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles S. Joelson (Democratic) 59.6%
Richard M. DeMarco (Republican) 38.2%
Harry Santhouse (Socialist Labor) 2.2%

|- ! | Henry Helstoski | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Henry Helstoski (Democratic) 50.9%
Frank C. Osmers Jr. (Republican) 49.1%

|- ! | Peter W. Rodino | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Peter W. Rodino (Democratic) 64.3%
Earl Harris (Republican) 32.7%
Virginia Elliott (Conservative) 2.4%
Harry Press (Socialist Labor) 0.6%

|- ! | Joseph Minish | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph Minish (Democratic) 58.3%
Leonard J. Felzenberg (Republican) 40.8%
Joseph Carroll (Socialist Labor) 0.9%

Florence P. Dwyer (Republican) 73.9%
Robert F. Allen (Democratic) 23.9%
Howard Shershinger (Conservative) 2.1%

|- ! | Neil Gallagher | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Neil Gallagher (Democratic) 71.8%
Ruth Swayze (Republican) 28.2%

|- ! | Dominick V. Daniels | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Dominick V. Daniels (Democratic) 68.0%
Thomas R. McSherry (Republican) 28.5%
Benjamin J. Messina (Conservative) 3.5%

|- ! | Edward J. Patten | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Edward J. Patten (Democratic) 57.0%
C. John Stroumtsos (Republican) 41.5%
Albert Wasilewski (Conservative) 1.6%

New Mexico

Main article: 1966 United States House of Representatives election in New Mexico

Thomas G. Morris (Democratic) 27.9%
E. S. Johnny Walker (Democratic) 25.3%
Robert C. Davidson (Republican) 24.8%
Schuble C. Cook (Republican) 22.0%

New York

|- ! | Otis G. Pike | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Otis G. Pike (Democratic) 58.9%
James M. Catterson Jr. (Republican) 33.7%
Domenico Crachi Jr. (Conservative) 7.4%

|- ! | James R. Grover Jr. | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

James R. Grover Jr. (Republican) 54.7%
Frank M. Corso (Democratic) 34.1%
Edward Campbell (Conservative) 10.2%
John Brush (Peace) 1.0%

|- ! | Lester L. Wolff | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Lester L. Wolff (Democratic) 50.3%
Steven Derounian (Republican) 49.7%

|- ! | John W. Wydler | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

John W. Wydler (Republican) 59.7%
Martin Steadman (Democratic) 32.0%
Donald H. Serrell (Conservative) 6.9%
Bernard Kagel (Peace) 1.4%

|- ! | Herbert Tenzer | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Herbert Tenzer (Democratic) 49.9%
Thomas Brennan (Republican) 48.6%
Carleton M. Fisher (Peace) 1.5%

|- ! | Seymour Halpern | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Seymour Halpern (Republican) 59.0%
Gilbert T. Redleaf (Democratic) 29.4%
Ronald E. Weiss (Conservative) 11.5%

|- ! | Joseph P. Addabbo | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph P. Addabbo (Democratic) 64.9%
Louis R. Mercogliano (Republican) 24.0%
Raymond G. Carpenter (Conservative) 11.1%

|- ! | Benjamin Rosenthal | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Benjamin Rosenthal (Democratic) 69.6%
Thomas C. Gowlan (Republican) 22.1%
Cyrus Julien (Conservative) 8.3%

|- ! | James J. Delaney | | Democratic | 1944 1946 (lost) 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

James J. Delaney (Democratic) 53.5%
John F. Haggerty (Republican) 40.0%
David Green (Liberal) 6.5%

|- ! | Emanuel Celler | | Democratic | 1922 | Incumbent re-elected. | nowrap | {{Plainlist|

Emanuel Celler (Democratic) 82.1%
Erwin A. Rosenberg (Republican) 17.9%

|- ! | Eugene Keogh | | Democratic | 1936 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

Frank J. Brasco (Democratic) 70.6%
Benjamin W. Feldman (Republican) 21.9%
Edward L. Johnson (Liberal) 7.5%

|- ! | Edna F. Kelly | | Democratic | 1949 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Edna F. Kelly (Democratic) 72.7%
Alfred G. Walton (Republican) 24.4%
Herbert Aptheker (Peace and Freedom) 3.0%

|- ! | Abraham J. Multer | | Democratic | 1947 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Abraham J. Multer (Democratic) 61.9%
Mary Gravina (Republican) 18.6%
Hershell Chanin (Liberal) 13.3%
Michael J. Spadaro (Conservative) 6.1%

|- ! | John J. Rooney | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

John J. Rooney (Democratic) 77.6%
Leon F. Nadrowski (Republican) 22.4%

|- ! | Hugh Carey | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Hugh Carey (Democratic) 56.8%
Herbert F. Ryan (Republican) 43.2%

|- ! | John M. Murphy | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

John M. Murphy (Democratic) 57.4%
Frank J. Biondolillo (Republican) 42.6%

|- ! | Theodore R. Kupferman | | Republican | 1966 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Theodore R. Kupferman (Republican) 47.7%
Jerome L. Wilson (Democratic) 46.2%
Richard J. Callahan (Conservative) 6.1%

|- ! | Adam Clayton Powell Jr. | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

Adam Clayton Powell Jr. (Democratic) 74.0%
Lassen R. Walsh (Republican) 17.5%
Richard Priedeaux (Liberal) 6.5%
Ryland E. D. Chase (Conservative) 2.0%

|- ! | Leonard Farbstein | | Democratic | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Leonard Farbstein (Democratic) 57.8%
Henry E. Del Rosso (Republican) 26.2%
Elaine M. Morrison (Liberal) 12.2%
James Weinstein (Socialist) 3.8%

|- ! | William Fitts Ryan | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

William Fitts Ryan (Democratic) 74.8%
Norman C. Harlowe (Republican) 20.7%
Carolyn S. Weller (Conservative) 4.5%

|- ! | James H. Scheuer | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

James H. Scheuer (Democratic) 83.6%
Burton Siegel (Republican) 16.4%

|- ! | Jacob H. Gilbert | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Jacob H. Gilbert (Democratic) 74.2%
Pedro Luis Rodriguez (Republican) 19.3%
Carlos Rosario (Liberal) 6.5%

|- ! | Jonathan B. Bingham | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Jonathan B. Bingham (Democratic) 73.4%
Harold Grosberg (Republican) 18.9%
Walter A. Quinn Jr. (Conservative) 7.8%

|- ! | Paul A. Fino | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Paul A. Fino (Republican) 63.9%
Aileen B. Ryan (Democratic) 33.4%
John P. Hagan (Liberal) 2.7%

|- ! | Richard Ottinger | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard Ottinger (Democratic) 54.6%
Frederick J. Martin Jr. (Republican) 45.4%

|- ! | Ogden R. Reid | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Ogden R. Reid (Republican) 69.3%
Joseph L. Hutner (Democratic) 25.4%
Albert M. Gants (Conservative) 5.3%

|- ! | John G. Dow | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John G. Dow (Democratic) 47.2%
Louis V. Mills (Republican) 44.5%
Frederick P. Roland (Conservative) 8.3%

|- ! | Joseph Y. Resnick | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph Y. Resnick (Democratic) 50.3%
Hamilton Fish IV (Republican) 46.3%
Jean Hervey (Conservative) 2.1%
Eric Lindbloom (Peace) 1.3%

|- ! | Leo W. O'Brien | | Democratic | 1952 | | Incumbent retired. Republican gain. | nowrap | {{Plainlist|

Daniel E. Button (Republican) 53.3%
Richard J. Connors (Democratic) 45.1%
John Muller (Conservative) 1.6%

|- ! | Carleton J. King | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Carleton J. King (Republican) 65.0%
John S. Hall (Democratic) 35.0%

|- ! | Robert C. McEwen | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert C. McEwen (Republican) 67.6%
Raymond E. Bishop (Democratic) 32.4%

|- ! | Alexander Pirnie | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Alexander Pirnie (Republican) 72.3%
Robert Castle (Democratic) 27.7%

|- ! | Howard W. Robison | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Howard W. Robison (Republican) 65.7%
Blair G. Ewing (Democratic) 34.0%
Joe Griffith (write-in) 0.3%

|- ! | James M. Hanley | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

James M. Hanley (Democratic) 55.1%
Stewart F. Hancock Jr. (Republican) 38.3%
Benjamin K. Souler (Conservative) 3.6%
Norman Balabanian (Liberal) 3.0%

|- ! | Samuel S. Stratton | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Samuel S. Stratton (Democratic) 65.8%
Frederick D. Dugan (Republican) 34.2%

|- ! | Frank Horton | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank Horton (Republican) 67.3%
Milo Thomas (Democratic) 22.6%
Robert H. Detig (Conservative) 6.4%
Donald P. Feder (Liberal) 3.7%

|- ! | Barber Conable | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Barber Conable (Republican) 67.7%
Kenneth Hed (Democratic) 30.0%
Jerome Balter (Liberal) 2.4%

|- ! | Charles Goodell | | Republican | 1959 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Goodell (Republican) 67.2%
Edison LeRoy Jr. (Democratic) 29.3%
Charles F. Schwartz (Liberal) 2.1%
Lloyd R. Murphy (Conservative) 1.4%

|- ! | Richard D. McCarthy | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard D. McCarthy (Democratic) 52.3%
John R. Pillion (Republican) 47.7%

|- ! | Henry P. Smith III | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Henry P. Smith III (Republican) 61.2%
William Levitt (Democratic) 38.8%

|- ! | Thaddeus J. Dulski | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Thaddeus J. Dulski (Democratic) 76.4%
Francis X. Schwab Jr. (Republican) 23.6%

North Carolina

|- ! | Walter B. Jones Sr. | | Democratic | 1966 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Walter B. Jones Sr. (Democratic) 61.3%
John Porter East (Republican) 38.7%

|- ! | Lawrence H. Fountain | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Lawrence H. Fountain (Democratic) 64.9%
Reece B. Gardner (Republican) 35.1%

|- ! | Harold D. Cooley | | Democratic | 1934 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Jim Gardner (Republican) 56.5%
Harold D. Cooley (Democratic) 43.5%

|- ! | Ralph James Scott | | Democratic | 1956 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

Nick Galifianakis (Democratic) 53.1%
G. Fred Steele Jr. (Republican) 46.9%

|- ! | Horace R. Kornegay | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Horace R. Kornegay (Democratic) 51.6%
Richard B. Barnwell (Republican) 48.4%

|- ! | Charles R. Jonas | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles R. Jonas (Republican) 71.5%
John G. Plumides (Democratic) 28.5%

|- ! | Jim Broyhill | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Jim Broyhill (Republican) 63.3%
Robert Bingham (Democratic) 36.7%

|- ! | Basil Whitener | | Democratic | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Basil Whitener (Democratic) 56.1%
W. Hall Young (Republican) 43.9%

|- ! | Roy A. Taylor | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Roy A. Taylor (Democratic) 52.8%
W. Scott Harvey (Republican) 47.2%

North Dakota

|- ! | Mark Andrews | | Republican | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Mark Andrews (Republican) 66.2%
Buckshot Hoffner (Democratic-NPL) 33.8%

|- ! | Rolland W. Redlin | | Democratic-NPL | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Thomas S. Kleppe (Republican) 51.9%
Rolland W. Redlin (Democratic-NPL) 48.1%

Ohio

Ohio redistricted its at-large seat into a 24th district, splitting out the counties to the southwest of Dayton from the city itself, as well as moving a district in southeastern Ohio into the Columbus area.

|- ! | John J. Gilligan | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Robert Taft Jr. (Republican) 52.9%
John J. Gilligan (Democratic) 47.1%

|- ! | Donald D. Clancy | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Donald D. Clancy (Republican) 70.7%
Thomas E. Anderson (Democratic) 29.3%

|- ! | Rodney M. Love | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Charles W. Whalen Jr. (Republican) 53.8%
Rodney M. Love (Democratic) 46.2%

|- ! | William M. McCulloch | | Republican | 1947 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

William M. McCulloch (Republican) 63.6%
Robert H. Mihlbaugh (Democratic) 36.4%

|- ! | Del Latta | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Del Latta (Republican) 75.3%
John H. Shock (Democratic) 24.7%

|- ! | Bill Harsha | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Bill Harsha (Republican) 67.9%
Ottie W. Reno (Democratic) 32.1%

|- ! | Jackson Edward Betts | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

Jackson Edward Betts (Republican) 67.1%
Frank Bennett (Democratic) 32.9%

|- ! | Thomas L. Ashley | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas L. Ashley (Democratic) 60.8%
Jane M. Kuebbeler (Republican) 39.2%

|- ! | Walter H. Moeller | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Clarence E. Miller (Republican) 52.0%
Walter H. Moeller (Democratic) 48.0%

|- ! | J. William Stanton | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

J. William Stanton (Republican) 69.3%
James F. Henderson (Democratic) 30.7%

|- ! | Samuel L. Devine | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Samuel L. Devine (Republican) 64.2%
Bob Shamansky (Democratic) 35.8%

|- ! | Charles Adams Mosher | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Adams Mosher (Republican) 65.5%
Thomas E. Wolfe (Democratic) 34.5%

|- ! | William Hanes Ayres | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William Hanes Ayres (Republican) 59.6%
Charles F. Madden Jr. (Democratic) 40.4%

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

Chalmers Wylie (Republican) 59.9%
Robert L. Van Heyde (Republican) 40.1%

|- ! | Frank T. Bow | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank T. Bow (Republican) 61.1%
Robert D. Freeman (Democratic) 38.9%

John M. Ashbrook (Republican) 55.3%
Robert T. Secrest (Democratic) 44.7%

|- ! | Wayne Hays | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Wayne Hays (Democratic) 64.1%
William H. Weir (Republican) 35.9%

|- ! | Michael J. Kirwan | | Democratic | 1936 | Incumbent re-elected. | nowrap | {{Plainlist|

Michael J. Kirwan (Democratic) 71.9%
Donald J. Lewis (Republican) 28.1%

|- ! | Michael A. Feighan | | Democratic | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Michael A. Feighan (Democratic) 76.1%
Clarence E. McLeod (Republican) 23.9%

|- ! | Charles Vanik | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Charles Vanik (Democratic) 81.7%
Frederick M. Coleman (Republican) 18.3%

|- ! | Frances P. Bolton | | Republican | 1940 | Incumbent re-elected. | nowrap | {{Plainlist|

Frances P. Bolton (Republican) 55.9%
Anthony O. Calabrese Jr. (Democratic) 44.1%

|- ! | William E. Minshall Jr. | | Republican | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

William E. Minshall Jr. (Republican) 73.2%
Sheldon D. Clark (Democratic) 26.8%

|- ! | Robert E. Sweeney Redistricted from the | | Democratic | 1964 | | Incumbent retired. Republican gain. | nowrap | {{Plainlist|

Buz Lukens (Republican) 58.5%
James H. Pelley (Democratic) 41.5%

Oklahoma

|- ! | Page Belcher | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

Page Belcher (Republican) 69.7%
Ed Cadenhead (Democratic) 30.3%

|- ! | Ed Edmondson | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Ed Edmondson (Democratic) 53.6%
Denzil Garrison (Republican) 46.4%

|- ! | Carl Albert | | Democratic | 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

Carl Albert (Democratic) 77.2%
Whit Pate (Republican) 22.8%

|- ! | Tom Steed | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Tom Steed (Democratic) 50.2%
Truman T. Branscum (Republican) 49.8%

|- ! | John Jarman | | Democratic | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

John Jarman (Democratic) 69.6%
Melvin H. Gragg (Republican) 30.4%

|- ! | Jed Johnson Jr. | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

James Vernon Smith (Republican) 51.4%
Jed Johnson Jr. (Democratic) 48.6%

Oregon

|- ! | Wendell Wyatt | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Wendell Wyatt (Republican) 74.3%
Malcolm Cross (Democratic) 25.7%

|- ! | Al Ullman | | Democratic | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Al Ullman (Democratic) 63.3%
Everett J. Thoren (Republican) 36.7%

|- ! | Edith Green | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Edith Green (Democratic) 67.0%
Lyle Dean (Republican) 33.0%

|- ! | Robert B. Duncan | | Democratic | 1962 | | Incumbent retired to run for U.S. Senator. Republican gain. | nowrap | {{Plainlist|

John R. Dellenback (Republican) 62.7%
Charles O. Porter (Democratic) 37.3%

Pennsylvania

|- ! | William A. Barrett | | Democratic | 1944 1946 (lost) 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

William A. Barrett (Democratic) 66.1%
Beatrice Chernock (Republican) 33.9%

|- ! | Robert N. C. Nix Sr. | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert N. C. Nix Sr. (Democratic) 59.9%
Herbert R. Cain Jr. (Republican) 40.1%

|- ! | James A. Byrne | | Democratic | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

James A. Byrne (Democratic) 56.6%
Walter T. Darmopray (Republican) 43.4%

|- ! | Herman Toll | | Democratic | 1958 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

Joshua Eilberg (Democratic) 51.9%
Robert Bear Cohen (Republican) 48.1%

|- ! | William J. Green III | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William J. Green III (Democratic) 59.1%
Michael J. Bednarek (Republican) 40.9%

|- ! | George M. Rhodes | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

George M. Rhodes (Democratic) 56.1%
Daniel B. Boyer Jr. (Republican) 43.9%

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

Lawrence G. Williams (Republican) 63.2%
John J. Logue (Democratic) 36.8%

|- ! | Willard S. Curtin | | Republican | 1956 | | Incumbent retired. Republican hold. | nowrap | {{Plainlist|

Edward G. Biester Jr. (Republican) 59.1%
Walter S. Farley Jr. (Democratic) 40.9%

George Watkins (Republican) 62.6%
John A. O'Brien (Democratic) 37.4%

|- ! | Joseph M. McDade | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph M. McDade (Republican) 66.8%
Neil Trama (Democratic) 33.2%

|- ! | Dan Flood | | Democratic | 1944 1946 (lost) 1948 1952 (lost) 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Dan Flood (Democratic) 67.2%
Gerald C. Broadt (Republican) 32.8%

|- ! | J. Irving Whalley | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

J. Irving Whalley (Republican) 66.9%
J. Robert Rohm (Democratic) 33.1%

|- ! | Richard Schweiker | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard Schweiker (Republican) 72.5%
William D. Searle (Democratic) 27.5%

|- ! | William S. Moorhead | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

William S. Moorhead (Democratic) 68.3%
Dick Thornburgh (Republican) 31.7%

|- ! | Fred B. Rooney | | Democratic | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Fred B. Rooney (Democratic) 52.4%
George J. Joseph (Republican) 47.6%

|- ! | John C. Kunkel | | Republican | 1961 (special) | | Incumbent retired. Republican hold. | nowrap | {{Plainlist|

Edwin D. Eshleman (Republican) 69.2%
Richard F. Charles (Democratic) 30.8%

|- ! | Herman T. Schneebeli | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Herman T. Schneebeli (Republican) 66.2%
William Conrad Reuter (Democratic) 33.8%

|- ! | Robert J. Corbett | | Republican | 1938 1940 (lost) 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert J. Corbett (Republican) 67.1%
John R. Wohlfarth (Democratic) 32.9%

|- ! | Nathaniel N. Craley Jr. | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

George A. Goodling (Republican) 51.7%
Nathaniel N. Craley Jr. (Democratic) 48.3%

|- ! | Elmer J. Holland | | Democratic | 1942 (special) 1942 (retired) 1956 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Elmer J. Holland (Democratic) 65.9%
Joseph Sabol Jr. (Republican) 34.1%

|- ! | John Herman Dent | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

John Herman Dent (Democratic) 64.2%
Edward B. Byrne (Republican) 35.8%

|- ! | John P. Saylor | | Republican | 1949 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

John P. Saylor (Republican) 67.5%
Frank H. Buck (Democratic) 32.5%

|- ! | Albert W. Johnson | | Republican | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Albert W. Johnson (Republican) 62.8%
Robert Mitchell (Democratic) 37.2%

|- ! | Joseph P. Vigorito | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Joseph P. Vigorito (Democratic) 55.3%
James D. Weaver (Republican) 44.7%

|- ! | Frank M. Clark | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Frank M. Clark (Democratic) 64.5%
John F. Heath (Republican) 35.5%

|- ! | Thomas E. Morgan | | Democratic | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas E. Morgan (Democratic) 64.1%
Paul P. Riggle (Republican) 35.9%

|- ! | James G. Fulton | | Republican | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

James G. Fulton (Republican) 67.7%
Stephen J. Arnold (Democratic) 32.3%

Rhode Island

|- ! | Fernand St Germain | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Fernand St Germain (Democratic) 56.8%
Raymond W. Houghton (Republican) 43.2%

|- ! | John E. Fogarty | | Democratic | 1940 | Incumbent re-elected. | nowrap | {{Plainlist|

John E. Fogarty (Democratic) 64.7%
Everett C. Sammartino (Republican) 35.3%

South Carolina

Main article: 1966 United States House of Representatives elections in South Carolina

|- ! | Albert Watson | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Albert Watson (Republican) 64.3%
Fred LeClercq (Democratic) 35.7%

|- ! | William J. B. Dorn | | Democratic | 1946 1948 (retired) 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

William J. B. Dorn (Democratic) 57.8%
John Grisso (Republican) 42.2%

|- ! | John L. McMillan | | Democratic | 1938 | Incumbent re-elected. | nowrap | {{Plainlist|

John L. McMillan (Democratic) 61.7%
Archie Odom (Republican) 38.3%

South Dakota

|- ! | Ben Reifel | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Ben Reifel (Republican) 66.7%
Francis Richter (Democratic) 33.3%

|- ! | E. Y. Berry | | Republican | 1950 | Incumbent re-elected. | nowrap | {{Plainlist|

E. Y. Berry (Republican) 60.5%
Jack P. Allmon (Democratic) 39.5%

Tennessee

|- ! | Jimmy Quillen | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Jimmy Quillen (Republican) 87.1%
Temus Bright (Independent) 12.9%

|- ! | John Duncan Sr. | | Republican | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

John Duncan Sr. (Republican) 78.9%
Jake Armstrong (Democratic) 21.1%

|- ! | Bill Brock | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Bill Brock (Republican) 64.2%
Franklin Haney (Democratic) 35.8%

|- ! | Joe L. Evins | | Democratic | 1946 | Incumbent re-elected. | nowrap | {{Plainlist|

Joe L. Evins (Democratic) 90.0%
William Bean (Independent) 10.0%

|- ! | Richard Fulton | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard Fulton (Democratic) 63.0%
George Kelly (Republican) 37.0%

|- ! | William Anderson | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

William Anderson (Democratic) 79.6%
Cecil R. Hill (Independent) 20.4%

|- ! | Tom J. Murray | | Democratic | 1942 | | Incumbent lost renomination. Democratic hold. | nowrap | {{Plainlist|

Ray Blanton (Democratic) 50.6%
Julius Hurst (Republican) 48.4%
L. B. Winfield (Independent) 1.0%

|- ! | Fats Everett | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Fats Everett (Democratic) 75.2%
Jim Boyd (Republican) 24.8%

|- ! | George W. Grider | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Dan Kuykendall (Republican) 52.2%
George W. Grider (Democratic) 47.8%

Texas

Texas redistricted for this election, eliminating its at-large district and removing two East Texas districts in favor of adding three districts in South Texas, suburban Houston, and suburban Dallas.

|- ! | Joe R. Pool Redistricted from the | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Joe R. Pool (Democratic) 53.4%
Bill Hayes (Republican) 46.6%

|- ! | Earle Cabell | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Earle Cabell (Democratic) 61.0%
Duke Burgess (Republican) 39.0%

|- ! | | New seat. Republican gain. | nowrap | {{Plainlist|

George H. W. Bush (Republican) 57.1%
Frank Briscoe (Democratic) 42.4%
Bob Gray (Constitution) 0.5%

|- ! | Lera Millard Thomas | | Democratic | 1966 | | Incumbent retired. Democratic hold. | nowrap | {{Plainlist|

Robert C. Eckhardt (Democratic) 92.3%
W. D. Spayne (Republican) 7.7%

|- ! | J. J. Pickle | | Democratic | 1963 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

J. J. Pickle (Democratic) 74.3%
Jane Sumner (Republican) 24.6%
R. R. Richter (Constitution) 1.1%

|- ! | William R. Poage | | Democratic | 1936 | Incumbent re-elected. | nowrap | {{Plainlist|

William R. Poage (Democratic) 94.9%
Laurel N. Dunn (Conservative) 5.1%

|- ! | Graham B. Purcell Jr. | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Graham B. Purcell Jr. (Democratic) 57.1%
D. C. Norwood (Republican) 42.9%

|- ! | Walter E. Rogers | | Democratic | 1950 | | Incumbent retired. Republican gain. | nowrap | {{Plainlist|

Robert Price (Republican) 59.5%
Dee Miller (Democratic) 40.5%

|- ! | Henry B. González | | Democratic | 1961 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

Henry B. González (Democratic) 87.1%
Robert C. Moore (Conservative) 7.8%
Bert Ellis (Constitution) 5.1%

|- ! | | New seat. Democratic gain. | nowrap | {{Plainlist|

Abraham Kazen (Democratic) 96.4%
Richard K. Troxell (Constitution) 3.6%

Utah

|- ! | Laurence J. Burton | | Republican | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

Laurence J. Burton (Republican) 66.5%
J. Keith Melville (Democratic) 33.5%

|- ! | David S. King | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Sherman P. Lloyd (Republican) 61.3%
David S. King (Democratic) 38.7%

Vermont

|- ! | Robert Stafford | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert Stafford (Republican) 65.6%
William J. Ryan (Democratic) 34.4%

Virginia

|- ! | Watkins Abbitt | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Watkins Abbitt (Democratic) 66.5%
Edward J. SIlverman (Independent) 21.8%
Others 11.6%

|- ! | William M. Tuck | | Democratic | 1953 (special) | Incumbent re-elected. | nowrap | {{Plainlist|

William M. Tuck (Democratic) 56.2%
Robert L. Gilliam (Republican) 43.8%

|- ! | Richard H. Poff | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Richard H. Poff (Republican) 80.8%
Murray A. Stoller (Democratic) 19.2%

|- ! | John O. Marsh Jr. | | Democratic | 1962 | Incumbent re-elected. | nowrap | {{Plainlist|

John O. Marsh Jr. (Democratic) 59.3%
Edward O. McCue III (Republican) 40.7%

|- ! | Howard W. Smith | | Democratic | 1930 | | Incumbent lost renomination. Republican gain. | nowrap | {{Plainlist|

William L. Scott (Republican) 57.2%
George Rawlings (Democratic) 42.8%

|- ! | W. Pat Jennings | | Democratic | 1954 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

William C. Wampler (Republican) 53.7%
W. Pat Jennings (Democratic) 46.3%

|- ! | Joel Broyhill | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Joel Broyhill (Republican) 58.3%
Clive L. DuVal II (Democratic) 41.7%

Washington

|- ! | Thomas Pelly | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Thomas Pelly (Republican) 80.3%
Alice Franklin Bryant (Democratic) 19.7%

|- ! | Lloyd Meeds | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Lloyd Meeds (Democratic) 60.7%
Eugene M. Smith (Republican) 36.0%
George E. Pittan (Conservative) 2.4%
Frank L. Batterson (Peace and Freedom) 0.9%

|- ! | Julia Butler Hansen | | Democratic | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Julia Butler Hansen (Democratic) 65.7%
Keith Kisor (Republican) 34.3%

|- ! | Catherine Dean May | | Republican | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Catherine Dean May (Republican) 62.1%
Gustav Bansmer (Democratic) 30.3%
Floyd Paxton (Conservative) 7.6%

|- ! | Tom Foley | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Tom Foley (Democratic) 56.5%
Dorothy R. Powers (Republican) 43.5%

|- ! | Floyd Hicks | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Floyd Hicks (Democratic) 60.4%
George Mahler (Republican) 39.6%

|- ! | Brock Adams | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Brock Adams (Democratic) 62.8%
James Munn (Republican) 36.0%
Robert B. Shaw (Peace and Freedom) 1.2%

West Virginia

|- ! | Arch A. Moore Jr. | | Republican | 1956 | Incumbent re-elected. | nowrap | {{Plainlist|

Arch A. Moore Jr. (Republican) 70.9%
William M. Kidd (Democratic) 29.1%

|- ! | Harley Orrin Staggers | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Harley Orrin Staggers (Democratic) 60.3%
George L. Strader (Republican) 39.7%

|- ! | John M. Slack Jr. | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

John M. Slack Jr. (Democratic) 61.6%
Mal Guthrie (Republican) 38.4%

|- ! | Ken Hechler | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Ken Hechler (Democratic) 59.7%
Harry D. Humphreys (Republican) 40.3%

|- ! | James Kee | | Democratic | 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

James Kee (Democratic) 63.6%
Elizabeth Ann Bowen (Republican) 36.4%

Wisconsin

|- ! | Lynn E. Stalbaum | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

Henry C. Schadeberg (Republican) 51.0%
Lynn E. Stalbaum (Democratic) 49.0%

|- ! | Robert Kastenmeier | | Democratic | 1958 | Incumbent re-elected. | nowrap | {{Plainlist|

Robert Kastenmeier (Democratic) 58.0%
William B. Smith (Republican) 42.0%

|- ! | Vernon W. Thomson | | Republican | 1960 | Incumbent re-elected. | nowrap | {{Plainlist|

Vernon W. Thomson (Republican) 68.8%
John D. Rice (Democratic) 31.2%

|- ! | Clement Zablocki | | Democratic | 1948 | Incumbent re-elected. | nowrap | {{Plainlist|

Clement Zablocki (Democratic) 74.3%
James E. Laessig (Republican) 25.7%

|- ! | Henry S. Reuss | | Democratic | 1954 | Incumbent re-elected. | nowrap | {{Plainlist|

Henry S. Reuss (Democratic) 70.0%
Curtis T. Pechtel (Republican) 29.7%
James E. Boulton (Independent) 0.3%

|- ! | John Abner Race | | Democratic | 1964 | | Incumbent lost re-election. Republican gain. | nowrap | {{Plainlist|

William A. Steiger (Republican) 52.4%
John Abner Race (Democratic) 47.6%

|- ! | Melvin Laird | | Republican | 1952 | Incumbent re-elected. | nowrap | {{Plainlist|

Melvin Laird (Republican) 65.1%
Norman Myhra (Democratic) 34.9%

|- ! | John W. Byrnes | | Republican | 1944 | Incumbent re-elected. | nowrap | {{Plainlist|

John W. Byrnes (Republican) 61.3%
Marvin S. Kagen (Democratic) 38.7%

|- ! | Glenn Robert Davis | | Republican | 1947 (special) 1956 (retired) 1964 | Incumbent re-elected. | nowrap | {{Plainlist|

Glenn Robert Davis (Republican) 64.1%
James P. Buckley (Democratic) 35.9%

|- ! | Alvin O'Konski | | Republican | 1942 | Incumbent re-elected. | nowrap | {{Plainlist|

Alvin O'Konski (Republican) 66.5%
Carl Lauri (Democratic) 33.5%

Wyoming

|- ! | Teno Roncalio | | Democratic | 1964 | | Incumbent retired to run for U.S. Senator. Republican gain. | nowrap | {{Plainlist|

William Henry Harrison III (Republican) 52.7%
Al Christian (Democratic) 47.3%

References

Works cited

References

(19 March 2020). "Republican Party Politics and the American South, 1865–1968".
Martis, Kenneth C.. (1989). "The Historical Atlas of Political Parties in the United States Congress, 1789–1989". Prentice Hall College Div.

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