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Wisconsin's 27th Senate district
American legislative district in Dane County, Wisconsin
American legislative district in Dane County, Wisconsin
| Field | Value | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| image | {{switcher | ||||||||||||
| {{maplink | frame | yes | plain=yes | from=Wisconsin's 27th Senate district (2024–2031).map | frame-height=300 | frame-width=400 | frame-coord= | frame-longitude=-77.2 | zoom=9 | overlay-horizontal-alignment=right | overlay-vertical-alignment=bottom | overlay=[[File:2024 WI Sen 27.svg | 100px]] }} |
| {{maplink | frame | yes | plain=yes | from=Wisconsin's 27th Senate district (2022–2023).map | frame-height=300 | frame-width=400 | frame-coord= | frame-longitude=-77.2 | zoom=8 | overlay-horizontal-alignment=right | overlay-vertical-alignment=bottom | overlay=[[File:2024 WI Sen 27.svg | 100px]] }} |
| {{maplink | frame | yes | plain=yes | from=Wisconsin's 27th Senate district (2012–2021).map | frame-height=300 | frame-width=400 | frame-coord= | frame-longitude=-77.2 | zoom=8 | overlay-horizontal-alignment=right | overlay-vertical-alignment=bottom | overlay=[[File:2024 WI Sen 27.svg | 100px]] }} |
| image caption | 2024 map defined in [2023 Wisc. Act 94](https://docs.legis.wisconsin.gov/2023/related/acts/94) | ||||||||||||
| 2022 map defined in *[ Johnson v. Wisconsin Elections Commission](https://www.wicourts.gov/sc/opinion/DisplayDocument.pdf?content=pdf&seqNo=512188)* | |||||||||||||
| 2011 map was defined in [2011 Wisc. Act 43](https://docs.legis.wisconsin.gov/2011/related/acts/43) | |||||||||||||
| composed of Assembly districts 79, 80, and 81 | |||||||||||||
| chamber | Senate | ||||||||||||
| state | Wisconsin | ||||||||||||
| district | 27 | ||||||||||||
| representative | Dianne Hesselbein | ||||||||||||
| residence | Middleton | ||||||||||||
| party | Democratic | ||||||||||||
| incumbentsince | January 3, 2023 () | ||||||||||||
| population | 179,647 | ||||||||||||
| population_year | 2020 | ||||||||||||
| voting_age | 141,303 | ||||||||||||
| percent_white | 80.11 | ||||||||||||
| percent_black | 4.56 | ||||||||||||
| percent_hispanic | 5.47 | ||||||||||||
| percent_asian | 8.27 | ||||||||||||
| percent_native_american | 1.29 | ||||||||||||
| percent_pacific_islander | 0.09 | ||||||||||||
| website | [Official website](https://docs.legis.wisconsin.gov/districts/senate/27) | ||||||||||||
| notes | South-central Wisconsin |
| | From 2024 to 2031 | | From 2022 to 2023 | | From 2012 to 2021 2022 map defined in Johnson v. Wisconsin Elections Commission 2011 map was defined in 2011 Wisc. Act 43 composed of Assembly districts 79, 80, and 81
The 27th Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate. Located in south-central Wisconsin, the district comprises most of the northwest quadrant of Dane County. It includes much of the west side of the city of Madison, as well as portions of Madison's far north side. The 27th also includes the suburban cities of Middleton and Verona, and the villages of Black Earth, Cross Plains, Dane, Mazomanie, and Waunakee.
Current elected officials
Dianne Hesselbein is the senator representing the 27th district since January 2023. She previously served ten years in the Wisconsin State Assembly, representing the 79th district.
Each Wisconsin State Senate district is composed of three Wisconsin State Assembly districts. The 27th Senate district comprises the 79th, 80th, and 81st Assembly districts. The current representatives of those districts are:
- Assembly District 79: Lisa Subeck (D–Madison)
- Assembly District 80: Mike Bare (D–Verona)
- Assembly District 81: Alex Joers (D–Middleton)
The district is located entirely Wisconsin's 2nd congressional district, which is represented by U.S. Representative Mark Pocan.
File:CrossPlainsWisconsinDowntown2US14.jpg|Downtown Cross Plains File:Epic Systems Corporation Office.jpg|Epic Systems headquarters in Verona File:Wisconsin_trade_center.jpg|Wisconsin Trade Center in Middleton. File:Mazomanie_WI_May10.jpg|Mazomanie File:Gov._Nelson_prairie_2.jpg|Governor Nelson State Park
Past senators
The district has previously been represented by:
Note: the boundaries of districts have changed repeatedly over history. Previous politicians of a specific numbered district have represented a completely different geographic area, due to redistricting.
| Senator | Party | Notes | Session | Years | District Definition | ||||
|---|---|---|---|---|---|---|---|---|---|
| *District created by [1856 Wisc. Act 109.](https://docs.legis.wisconsin.gov/1856/related/acts/109.pdf)* | 1856 | Marathon, Portage, Waupaca, Waushara, and Wood counties | |||||||
| Luther Hanchett | Rep. | [10th](10th-wisconsin-legislature) | 1857 | ||||||
| [11th](11th-wisconsin-legislature) | 1858 | ||||||||
| [12th](12th-wisconsin-legislature) | 1859 | ||||||||
| [13th](13th-wisconsin-legislature) | 1860 | ||||||||
| Edward L. Browne | Rep. | [14th](14th-wisconsin-legislature) | 1861 | ||||||
| [15th](15th-wisconsin-legislature) | 1862 | Marathon, Portage, Waupaca, and Wood counties | |||||||
| Alexander S. McDill | Rep. | [16th](16th-wisconsin-legislature) | 1863 | ||||||
| Natl. Union | [17th](17th-wisconsin-legislature) | 1864 | |||||||
| Milan H. Sessions | Natl. Union | [18th](18th-wisconsin-legislature) | 1865 | ||||||
| [19th](19th-wisconsin-legislature) | 1866 | ||||||||
| Edward L. Browne | Natl. Union | [20th](20th-wisconsin-legislature) | 1867 | ||||||
| [21st](21st-wisconsin-legislature) | 1868 | ||||||||
| Charles M. Webb | Rep. | [22nd](22nd-wisconsin-legislature) | 1869 | ||||||
| [23rd](23rd-wisconsin-legislature) | 1870 | ||||||||
| Myron Reed | Dem. | *Redistricted to 21st district.* | [24th](24th-wisconsin-legislature) | 1871 | |||||
| William M. Griswold | Rep. | *Redistricted from 25th district.* | [25th](25th-wisconsin-legislature) | 1872 | Columbia County | ||||
| Evan O. Jones | Rep. | [26th](26th-wisconsin-legislature) | 1873 | ||||||
| [27th](27th-wisconsin-legislature) | 1874 | ||||||||
| Levi W. Barden | Rep. | [28th](28th-wisconsin-legislature) | 1875 | ||||||
| [29th](29th-wisconsin-legislature) | 1876 | ||||||||
| [30th](30th-wisconsin-legislature) | 1877 | Adams and Columbia counties | |||||||
| [31st](31st-wisconsin-legislature) | 1878 | ||||||||
| Charles L. Dering | Rep. | [32nd](32nd-wisconsin-legislature) | 1879 | ||||||
| [33rd](33rd-wisconsin-legislature) | 1880 | ||||||||
| Gilbert E. McKeeby | Rep. | [34th](34th-wisconsin-legislature) | 1881 | ||||||
| [35th](35th-wisconsin-legislature) | 1882 | Adams, Columbia, and Marquette counties | |||||||
| William T. Parry | Rep. | [36th](36th-wisconsin-legislature) | nowrap | 1883–1884 | |||||
| [37th](37th-wisconsin-legislature) | nowrap | 1885–1886 | |||||||
| Levi E. Pond | Rep. | [38th](38th-wisconsin-legislature) | nowrap | 1887–1888 | |||||
| [39th](39th-wisconsin-legislature) | 1889–1890 | ||||||||
| Russell C. Falconer | Dem. | [40th](40th-wisconsin-legislature) | 1891–1892 | ||||||
| [41st](41st-wisconsin-legislature) | 1893–1894 | Sauk County and | |||||||
| Western Columbia County | |||||||||
| William F. Conger | Rep. | [42nd](42nd-wisconsin-legislature) | 1895–1896 | ||||||
| [43rd](43rd-wisconsin-legislature) | 1897–1898 | Columbia and Sauk counties | |||||||
| William G. Bissell | Rep. | [44th](44th-wisconsin-legislature) | nowrap | 1899–1900 | |||||
| [45th](45th-wisconsin-legislature) | nowrap | 1901–1902 | |||||||
| George Wylie | Rep. | [46th](46th-wisconsin-legislature) | nowrap | 1903–1904 | |||||
| [47th](47th-wisconsin-legislature) | nowrap | 1905–1906 | |||||||
| Charles L. Pearson | Dem. | [48th](48th-wisconsin-legislature) | nowrap | 1907–1908 | |||||
| [49th](49th-wisconsin-legislature) | 1909–1910 | ||||||||
| John M. True | Rep. | [50th](50th-wisconsin-legislature) | 1911–1912 | ||||||
| [51st](51st-wisconsin-legislature) | nowrap | 1913–1914 | |||||||
| George Staudenmayer | Dem. | [52nd](52nd-wisconsin-legislature) | nowrap | 1915–1916 | |||||
| [53rd](53rd-wisconsin-legislature) | nowrap | 1917–1918 | |||||||
| Rep. | [54th](54th-wisconsin-legislature) | nowrap | 1919–1920 | ||||||
| [55th](55th-wisconsin-legislature) | nowrap | 1921–1922 | |||||||
| [56th](56th-wisconsin-legislature) | 1923–1924 | Columbia, Richland, and Sauk counties | |||||||
| [57th](57th-wisconsin-legislature) | 1925–1926 | ||||||||
| Robert Caldwell | Rep. | [58th](58th-wisconsin-legislature) | 1927–1928 | ||||||
| [59th](59th-wisconsin-legislature) | 1929–1930 | ||||||||
| Fred W. Zantow | Rep. | [60th](60th-wisconsin-legislature) | 1931–1932 | ||||||
| [61st](61st-wisconsin-legislature) | 1933–1934 | ||||||||
| E. Myrwyn Rowlands | Prog. | [62nd](62nd-wisconsin-legislature) | nowrap | 1935–1936 | |||||
| [63rd](63rd-wisconsin-legislature) | nowrap | 1937–1938 | |||||||
| Jess Miller | Rep. | *Died Dec. 1965.* | [64th](64th-wisconsin-legislature) | nowrap | 1939–1940 | ||||
| [65th](65th-wisconsin-legislature) | nowrap | 1941–1942 | |||||||
| [66th](66th-wisconsin-legislature) | nowrap | 1943–1944 | |||||||
| [67th](67th-wisconsin-legislature) | 1945–1946 | ||||||||
| [68th](68th-wisconsin-legislature) | 1947–1948 | ||||||||
| [69th](69th-wisconsin-legislature) | 1949–1950 | ||||||||
| [70th](70th-wisconsin-legislature) | nowrap | 1951–1952 | |||||||
| [71st](71st-wisconsin-legislature) | nowrap | 1953–1954 | |||||||
| [72nd](72nd-wisconsin-legislature) | nowrap | 1955–1956 | Columbia, Crawford, Richland, and Sauk counties | ||||||
| [73rd](73rd-wisconsin-legislature) | nowrap | 1957–1958 | |||||||
| [74th](74th-wisconsin-legislature) | nowrap | 1959–1960 | |||||||
| [75th](75th-wisconsin-legislature) | nowrap | 1961–1962 | |||||||
| [76th](76th-wisconsin-legislature) | nowrap | 1963–1964 | |||||||
| [77th](7th-wisconsin-legislature) | 1965–1966 | Adams, Columbia, Juneau, Marquette, and Sauk counties | |||||||
| *--Vacant--* | |||||||||
| Walter Terry | Rep. | [78th](78th-wisconsin-legislature) | nowrap | 1967–1968 | |||||
| [79th](79th-wisconsin-legislature) | nowrap | 1969–1970 | |||||||
| Everett Bidwell | Rep. | [80th](80th-wisconsin-legislature) | 1971–1972 | ||||||
| [81st](81st-wisconsin-legislature) | nowrap | 1973–1974 | Columbia, Marquette, and Sauk counties and | ||||||
| Southern Adams County | |||||||||
| Western Dodge County | |||||||||
| Southern Juneau County | |||||||||
| Part of Jefferson County | |||||||||
| [82nd](82nd-wisconsin-legislature) | nowrap | 1975–1976 | |||||||
| [83rd](83rd-wisconsin-legislature) | nowrap | 1977–1978 | |||||||
| [84th](84th-wisconsin-legislature) | nowrap | 1979–1980 | |||||||
| [85th](85th-wisconsin-legislature) | nowrap | 1981–1982 | |||||||
| Russ Feingold | Dem. | *Resigned 1992 after elected to United States Senate.* | [86th](86th-wisconsin-legislature) | nowrap | 1983–1984 | Columbia County and | |||
| Most of Sauk County | |||||||||
| Most of Richland County | |||||||||
| Northwest Dane County | |||||||||
| Western Dodge County | |||||||||
| [87th](87th-wisconsin-legislature) | nowrap | 1985–1986 | Columbia County and | ||||||
| Western Dane County | |||||||||
| Part of Dodge County | |||||||||
| Part of Green County | |||||||||
| Part of Rock County | |||||||||
| Part of Sauk County | |||||||||
| [88th](88th-wisconsin-legislature) | nowrap | 1987–1988 | |||||||
| [89th](89th-wisconsin-legislature) | nowrap | 1989–1990 | |||||||
| [90th](90th-wisconsin-legislature) | nowrap | 1991–1992 | |||||||
| *--Vacant--* | [91st](91st-wisconsin-legislature) | 1993–1994 | Green County and | ||||||
| Western Dane County | |||||||||
| Western Rock County | |||||||||
| Joe Wineke | Dem. | *Won 1993 special election.* | |||||||
| [92nd](92nd-wisconsin-legislature) | nowrap | 1995–1996 | |||||||
| [93rd](93rd-wisconsin-legislature) | nowrap | 1997–1998 | |||||||
| Jon Erpenbach | Dem. | [94th](94th-wisconsin-legislature) | nowrap | 1999–2000 | |||||
| [95th](95th-wisconsin-legislature) | nowrap | 2001–2002 | |||||||
| [96th](96th-wisconsin-legislature) | nowrap | 2003–2004 | Green County and | ||||||
| Western Dane County | |||||||||
| Part of Lafayette County | |||||||||
| Part of Rock County | |||||||||
| [97th](97th-wisconsin-legislature) | nowrap | 2005–2006 | |||||||
| [98th](98th-wisconsin-legislature) | nowrap | 2007–2008 | |||||||
| [99th](99th-wisconsin-legislature) | nowrap | 2009–2010 | |||||||
| [100th](100th-wisconsin-legislature) | nowrap | 2011–2012 | |||||||
| [101st](101st-wisconsin-legislature) | nowrap | 2013–2014 | [[File:2011 WI Sen 27.png | frameless | center | 300px]] Western Dane County | |||
| Most of Sauk County | |||||||||
| Eastern Iowa County | |||||||||
| Part of Columbia County | |||||||||
| Part of Green County | |||||||||
| [102nd](102nd-wisconsin-legislature) | nowrap | 2015–2016 | |||||||
| [103rd](103rd-wisconsin-legislature) | nowrap | 2017–2018 | |||||||
| [104th](104th-wisconsin-legislature) | nowrap | 2019–2020 | |||||||
| [105th](105th-wisconsin-legislature) | nowrap | 2021–2022 | |||||||
| Dianne Hesselbein | Dem. | *Elected 2022.* | [106th](106th-wisconsin-legislature) | nowrap | 2023–2024 | [[File:2022 WI Sen 27.png | frameless | center | 300px]] Western Dane County, |
| eastern Sauk County | |||||||||
| eastern Iowa County | |||||||||
| parts of Columbia County | |||||||||
| northwest Green County | |||||||||
| [107th](107th-wisconsin-legislature) | nowrap | 2025–2026 | [[File:2024 WI Sen 27.svg | frameless | center | 150px]] Northwest Dane County |
References
References
- "Senate District 27".
- "Wisconsin Legislative Districts - Senate District 27 Boundaries".
- "Senator Dianne H. Hesselbein".
- "State of Wisconsin Congressional Districts".
- Wisconsin Blue Book, 1991-92 edition, ''Statistics: History'', pages 657-666.
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