DeWitt County, Illinois

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County in Illinois, United States

title: "DeWitt County, Illinois" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["dewitt-county,-illinois", "1839-establishments-in-illinois", "illinois-counties", "populated-places-established-in-1839"] description: "County in Illinois, United States" topic_path: "general/dewitt-county-illinois" source: "https://en.wikipedia.org/wiki/DeWitt_County,_Illinois" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary County in Illinois, United States ::

::data[format=table title="Infobox U.S. county"]

FieldValue
countyDeWitt County
stateIllinois
founded1839
seat wlClinton
largest city wlClinton
area_total_sq_mi405
area_land_sq_mi398
area_water_sq_mi7.6
area percentage1.9
population_as_of2020
population_total15516
pop_est_as_of2024
population_est15319
population_density_sq_miauto
time zoneCentral
webhttps://www.dewittcountyil.gov/
district15th
named forDeWitt Clinton
ex imageDeWitt County Courthouse, Clinton.jpg
ex image capDeWitt County Courthouse in Clinton
::

| county = DeWitt County | state = Illinois | seal = | seallink = | founded = 1839 | seat wl = Clinton | largest city wl = Clinton | area_total_sq_mi = 405 | area_land_sq_mi = 398 | area_water_sq_mi = 7.6 | area percentage = 1.9 | population_as_of = 2020 | population_total = 15516 | pop_est_as_of = 2024 | population_est = 15319 | population_density_sq_mi = auto | time zone = Central | footnotes = | web = https://www.dewittcountyil.gov/ | district = 15th | named for = DeWitt Clinton | ex image = DeWitt County Courthouse, Clinton.jpg | ex image cap = DeWitt County Courthouse in Clinton

DeWitt County is a county located in the U.S. state of Illinois. As of the 2020 United States census, the population was 15,516. Its county seat is Clinton. The county was formed as De Witt County on March 1, 1839, from Macon and McLean counties. The county was named in honor of the seventh Governor of New York State, De Witt Clinton.

DeWitt County is included in Bloomington–Normal, IL Metropolitan Statistical Area.

The U.S. Census Bureau and the U.S. Geological Survey (USGS) list the county's name as De Witt, although the county uses the name DeWitt (no space).

History

File:DeWitt County Illinois 1839.png|DeWitt County from its creation in 1839 to the splitting off of Piatt County in 1841 File:DeWitt County Illinois 1841.png|DeWitt County from 1841 to 1845 File:DeWitt County Illinois 1845.png|DeWitt County in 1845, when it was reduced to its current size

Geography

According to the U.S. Census Bureau, the county has a total area of 405 sqmi, of which 398 sqmi is land and 7.6 sqmi (1.9%) is water.

Climate and weather

|Clinton, Illinois |17|35|2.05 |22|41|1.95 |32|53|3.20 |42|65|3.58 |52|76|4.47 |61|85|3.90 |65|88|4.54 |63|86|4.14 |55|80|2.98 |44|68|2.74 |34|52|3.32 |23|39|2.87 |float=right |units=imperial |clear=both |source=The Weather Channel{{cite web |url=http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0245 |title=Monthly Averages for Clinton, Illinois |access-date=January 27, 2011 |publisher=The Weather Channel In recent years, average temperatures in the county seat of Clinton have ranged from a low of 17 °F in January to a high of 88 °F in July, although a record low of -25 °F was recorded in February 1905 and a record high of 113 °F was recorded in July 1954. Average monthly precipitation ranged from 1.95 in in February to 4.54 in in July.

Adjacent counties

Transit

Major highways

Demographics

|1840= 3247 |1850= 5002 |1860= 10820 |1870= 14768 |1880= 17010 |1890= 17011 |1900= 18972 |1910= 18906 |1920= 19252 |1930= 18598 |1940= 18244 |1950= 16894 |1960= 17253 |1970= 16975 |1980= 18108 |1990= 16516 |2000= 16798 |2010= 16561 |2020= 15516 |estyear=2024 |estimate=15319 |estref= |align-fn=center |footnote=U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010

2020 census

::data[format=table title="'''De Witt County, Illinois – Racial and ethnic composition'''
{{nobold|''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.''}}"] | Race / Ethnicity (NH = Non-Hispanic) | title=1980 Census of Population - General Population Characteristics - Illinois- Table 14 - Persons by Race and Table 16 (p. 18-28) - Total Persons and Spanish Origin Persons by Type of Spanish Origin and Race (p. 29-39)|url=https://www2.census.gov/prod2/decennial/documents/1980a_ilAB-03.pdf|website=United States Census Bureau|page=}} | title=1990 Census of Population - General Population Characteristics - Illinois - Table 6 - Race and Hispanic Orogin|url=https://www2.census.gov/library/publications/decennial/1990/cp-2/cp-2-15-1.pdf|website=United States Census Bureau}} | title=P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – De Witt County, Illinois|url=https://data.census.gov/table?g=050XX00US17039&tid=DECENNIALSF12000.P004|website=United States Census Bureau |access-date= }} | title=P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – De Witt County, Illinois|url=https://data.census.gov/cedsci/table?q=p2&g=050XX00US17039&tid=DECENNIALPL2010.P2|website=United States Census Bureau |access-date= }} | Pop 2020 | % 1980 | % 1990 | % 2000 | % 2010 | % 2020 | |---|---|---|---|---|---|---|---|---|---|---| | White alone (NH) | 17,932 | 16,332 | 16,303 | 15,855 | 14,370 | 99.03% | 98.89% | 97.05% | 95.74% | 92.61% | | Black or African American alone (NH) | 26 | 25 | 81 | 82 | 108 | 0.14% | 0.15% | 0.48% | 0.50% | 0.70% | | Native American or Alaska Native alone (NH) | 15 | 36 | 27 | 23 | 19 | 0.08% | 0.22% | 0.16% | 0.14% | 0.12% | | Asian alone (NH) | 26 | 43 | 46 | 58 | 40 | 0.14% | 0.26% | 0.27% | 0.35% | 0.26% | | Native Hawaiian or Pacific Islander alone (NH) | x | x | 3 | 4 | 16 | x | x | 0.02% | 0.02% | 0.10% | | Other race alone (NH) | 3 | 0 | 16 | 26 | 16 | 0.02% | 0.00% | 0.10% | 0.16% | 0.10% | | Mixed race or Multiracial (NH) | x | x | 109 | 159 | 437 | x | x | 0.65% | 0.96% | 2.82% | | Hispanic or Latino (any race) | 106 | 80 | 213 | 354 | 510 | 0.59% | 0.48% | 1.27% | 2.14% | 3.29% | | Total | 18,108 | 16,516 | 16,798 | 16,561 | **15,516 ** | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | ::

2020 census

As of the 2010 United States census, there were 16,561 people, 6,811 households, and 4,618 families residing in the county.{{cite web |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17039 |title=DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data |access-date=July 11, 2015 |publisher=United States Census Bureau |archive-url=https://archive.today/20200213015517/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17039 |archive-date=February 13, 2020 |url-status=dead |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17039 |access-date=July 11, 2015 |title=Population, Housing Units, Area, and Density: 2010 - County |publisher=United States Census Bureau |archive-url=https://archive.today/20200212200403/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17039 |archive-date=February 12, 2020 |url-status=dead |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17039 |title=DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates |access-date=July 11, 2015 |publisher=United States Census Bureau |archive-url=https://archive.today/20200213032328/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17039 |archive-date=February 13, 2020 |url-status=dead

Of the 6,811 households, 30.1% had children under the age of 18 living with them, 53.0% were married couples living together, 10.0% had a female householder with no husband present, 32.2% were non-families, and 27.5% of all households were made up of individuals. The average household size was 2.39 and the average family size was 2.88. The median age was 41.7 years.

The median income for a household in the county was $45,347 and the median income for a family was $56,806. Males had a median income of $41,649 versus $27,729 for females. The per capita income for the county was $24,320. About 6.4% of families and 8.6% of the population were below the poverty line, including 12.2% of those under age 18 and 6.6% of those age 65 or over.{{cite web |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17039 |title=DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates |access-date=July 11, 2015 |publisher=United States Census Bureau |archive-url=https://archive.today/20200213031100/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17039 |archive-date=February 13, 2020 |url-status=dead

Communities

::figure[src="https://upload.wikimedia.org/wikipedia/commons/8/86/Map_of_DeWitt_County_Illinois.png" caption="Map of DeWitt County, Illinois"] ::

Cities

Villages

Townships

DeWitt County is divided into thirteen townships:

Census-designated place

Unincorporated communities

Politics

DeWitt is frequently a Republican county. It has not been carried by a Democratic presidential candidate since Lyndon Johnson’s 1964 landslide, and even before that it was carried by Democrats only in strong winning elections like 1936, 1932, 1916, 1912 and 1892.

Education

K-12 school districts include:

There are also an elementary school district, Chester-East Lincoln Community Csd 61, and a secondary school district, Lincoln Community High School District 404.

Notes

References

References

  1. (March 2025). "County Population Totals and Components of Change: 2020–2024". U.S. Department of Commerce.
  2. "De Witt County, Illinois". [[United States Census Bureau]].
  3. "Find a County". National Association of Counties.
  4. Gannett, Henry. (1905). "The Origin of Certain Place Names in the United States". Govt. Print. Off..
  5. "Population and Housing Unit Estimates Tables". United States Census Bureau.
  6. "U.S. Decennial Census". United States Census Bureau.
  7. "Historical Census Browser". University of Virginia Library.
  8. "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau.
  9. "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau.
  10. "State & County QuickFacts". United States Census Bureau.
  11. "1980 Census of Population - General Population Characteristics - Illinois- Table 14 - Persons by Race and Table 16 (p. 18-28) - Total Persons and Spanish Origin Persons by Type of Spanish Origin and Race (p. 29-39)".
  12. "1990 Census of Population - General Population Characteristics - Illinois - Table 6 - Race and Hispanic Orogin".
  13. "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – De Witt County, Illinois".
  14. "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – De Witt County, Illinois".
  15. "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – De Witt County, Illinois".
  16. included in the Asian category in the 1980 Census
  17. included in the Asian category in the 1990 Census
  18. not an option in the 1980 Census
  19. not an option in the 1990 Census
  20. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections".
  21. "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: De Witt County, IL". [[U.S. Census Bureau]].

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dewitt-county,-illinois1839-establishments-in-illinoisillinois-countiespopulated-places-established-in-1839