Wisconsin's 27th Senate district

{{short description|American legislative district in Dane County, Wisconsin}}

{{Use mdy dates|date=August 2023}}

{{Infobox United States legislative district

|image = {{switcher

| {{maplink|frame=yes|plain=yes|from=Wisconsin's 27th Senate district (2024–2031).map|frame-height=300|frame-width=400|frame-coord={{coord|43.06|-89.5}}|frame-longitude=-77.2|zoom=9|overlay-horizontal-alignment=right|overlay-vertical-alignment=bottom|overlay=100px }}

| From 2024 to 2031

| {{maplink|frame=yes|plain=yes|from=Wisconsin's 27th Senate district (2022–2023).map|frame-height=300|frame-width=400|frame-coord={{coord|43.06|-89.5}}|frame-longitude=-77.2|zoom=8|overlay-horizontal-alignment=right|overlay-vertical-alignment=bottom|overlay=100px }}

| From 2022 to 2023

| {{maplink|frame=yes|plain=yes|from=Wisconsin's 27th Senate district (2012–2021).map|frame-height=300|frame-width=400|frame-coord={{coord|43.06|-89.5}}|frame-longitude=-77.2|zoom=8|overlay-horizontal-alignment=right|overlay-vertical-alignment=bottom|overlay=100px }}

| From 2012 to 2021

}}

|image width =

|image caption = 2024 map defined in {{nowrap|[https://docs.legis.wisconsin.gov/2023/related/acts/94 2023 Wisc. Act 94]}}
2022 map defined in [https://www.wicourts.gov/sc/opinion/DisplayDocument.pdf?content=pdf&seqNo=512188 Johnson v. Wisconsin Elections Commission]
2011 map was defined in {{nowrap|[https://docs.legis.wisconsin.gov/2011/related/acts/43 2011 Wisc. Act 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 ({{ayd|2023|1|3}})

|Democratic =

|Republican =

|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

|percent_multiracial =

|percent_other_race =

|website = [https://docs.legis.wisconsin.gov/districts/senate/27 Official website]

|notes = South-central Wisconsin

}}

The 27th Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate.{{Cite web|title=Senate District 27 |url=https://docs.legis.wisconsin.gov/districts/senate/27 |website= Wisconsin Legislature |accessdate= March 24, 2021 }} 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.{{Cite web|url= https://maps.legis.wisconsin.gov/?sen=27&single=y |title= Wisconsin Legislative Districts - Senate District 27 Boundaries |website= Wisconsin Legislature |access-date= March 24, 2021 }}

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.{{cite web|url= https://docs.legis.wisconsin.gov/2023/legislators/senate/2566 |title= Senator Dianne H. Hesselbein |website= Wisconsin Legislature |access-date= January 3, 2023 }}

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:

The district is located entirely Wisconsin's 2nd congressional district, which is represented by U.S. Representative Mark Pocan.{{cite web|url= https://legis.wisconsin.gov/ltsb/gisdocs/CongressionalMaps/Statewide_Congressional_Map_Poster.pdf |title= State of Wisconsin Congressional Districts |website= Wisconsin Legislature |accessdate= March 10, 2021 }}

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:Wisconsin Blue Book, 1991-92 edition, Statistics: History, pages 657-666.

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.

class=wikitable style="text-align:center"

! Senator

! Party

! Notes

! Session

! Years

! District Definition

style="height:3em"

| colspan=4 | District created by [https://docs.legis.wisconsin.gov/1856/related/acts/109.pdf 1856 Wisc. Act 109.]

| 1856

| rowspan="6" | Marathon, Portage, Waupaca, Waushara, and Wood counties

style="height:3em"

| rowspan="4" align=left | Luther Hanchett

| rowspan="4" {{Party shading/Republican}} | Rep.

| rowspan="4" |

| 10th

| 1857

style="height:3em"

| 11th

| 1858

style="height:3em"

| 12th

| 1859

style="height:3em"

| 13th

| 1860

style="height:3em"

| rowspan="2" align=left | Edward L. Browne

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 14th

| 1861

style="height:3em"

| 15th

| 1862

| rowspan="10" | Marathon, Portage, Waupaca, and Wood counties

style="height:3em"

| rowspan="2" align=left | Alexander S. McDill

| {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 16th

| 1863

style="height:3em"

| {{Party shading/National Union}} | {{nowrap|Natl. Union}}

| 17th

| 1864

style="height:3em"

| rowspan="2" align=left | Milan H. Sessions

| rowspan="2" {{Party shading/National Union}} | {{nowrap|Natl. Union}}

| rowspan="2" |

| 18th

| 1865

style="height:3em"

| 19th

| 1866

style="height:3em"

| rowspan="2" align=left | Edward L. Browne

| rowspan="2" {{Party shading/National Union}} | {{nowrap|Natl. Union}}

| rowspan="2" |

| 20th

| 1867

style="height:3em"

| 21st

| 1868

style="height:3em"

| rowspan="2" align=left | Charles M. Webb

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 22nd

| 1869

style="height:3em"

| 23rd

| 1870

style="height:3em"

| align=left | Myron Reed

| {{Party shading/Democratic}} | Dem.

| Redistricted to 21st district.

| 24th

| 1871

style="height:3em"

| align=left | William M. Griswold

| {{Party shading/Republican}} | Rep.

| Redistricted from 25th district.

| 25th

| 1872

| rowspan="5" | Columbia County

style="height:3em"

| rowspan="2" align=left | Evan O. Jones

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2"|

| 26th

| 1873

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| 27th

| 1874

style="height:3em"

| rowspan="4" align=left | Levi W. Barden

| rowspan="4" {{Party shading/Republican}} | Rep.

| rowspan="4" |

| 28th

| 1875

style="height:3em"

| 29th

| 1876

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| 30th

| 1877

| rowspan="5" | Adams and Columbia counties

style="height:3em"

| 31st

| 1878

style="height:3em"

| rowspan="2" align=left | Charles L. Dering

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 32nd

| 1879

style="height:3em"

| 33rd

| 1880

style="height:3em"

| rowspan="2" align=left | Gilbert E. McKeeby

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 34th

| 1881

style="height:3em"

| 35th

| 1882

| rowspan="6" | Adams, Columbia, and Marquette counties
{{resize|1880 population: 43,713
1885 population: 46,263}}

style="height:3em"

| rowspan="2" align=left | William T. Parry

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2"|

| 36th

| nowrap | 1883–1884

style="height:3em"

| 37th

| nowrap | 1885–1886

style="height:3em"

| rowspan="2" align=left | Levi E. Pond

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2"|

| 38th

| nowrap | 1887–1888

style="height:3em"

| 39th

| 1889–1890

style="height:3em"

| rowspan="2" align=left | Russell C. Falconer

| rowspan="2" {{Party shading/Democratic}} | Dem.

| rowspan="2"|

| 40th

| 1891–1892

style="height:3em"

| 41st

| 1893–1894

| rowspan="2" | Sauk County and
Western Columbia County
{{resize|1890 population: 44,629}}

style="height:3em"

| rowspan="2" align=left | William F. Conger

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2"|

| 42nd

| 1895–1896

style="height:3em"

| 43rd

| 1897–1898

| rowspan="13" | Columbia and Sauk counties
{{resize|1895 population: 63,787
1900 population: 64,127
1910 population: 63,998}}

style="height:3em"

| rowspan="2" align=left | William G. Bissell

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 44th

| nowrap | 1899–1900

style="height:3em"

| 45th

| nowrap | 1901–1902

style="height:3em"

| rowspan="2" align=left | George Wylie

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 46th

| nowrap | 1903–1904

style="height:3em"

| 47th

| nowrap | 1905–1906

style="height:3em"

| rowspan="2" align=left | Charles L. Pearson

| rowspan="2" {{Party shading/Democratic}} | Dem.

| rowspan="2" |

| 48th

| nowrap | 1907–1908

style="height:3em"

| 49th

| 1909–1910

style="height:3em"

| rowspan="2" align=left | John M. True

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 50th

| 1911–1912

style="height:3em"

| 51st

| nowrap | 1913–1914

style="height:3em"

| rowspan="6" align=left | George Staudenmayer

| rowspan="2" {{Party shading/Democratic}} | Dem.

| rowspan="6" |

| 52nd

| nowrap | 1915–1916

style="height:3em"

| 53rd

| nowrap | 1917–1918

style="height:3em"

| rowspan="4" {{Party shading/Republican}} | Rep.

| 54th

| nowrap | 1919–1920

style="height:3em"

| 55th

| nowrap | 1921–1922

style="height:3em"

| 56th

| 1923–1924

| rowspan="16" | Columbia, Richland, and Sauk counties

style="height:3em"

| 57th

| 1925–1926

style="height:3em"

| rowspan="2" align=left | Robert Caldwell

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 58th

| 1927–1928

style="height:3em"

| 59th

| 1929–1930

style="height:3em"

| rowspan="2" align=left | Fred W. Zantow

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 60th

| 1931–1932

style="height:3em"

| 61st

| 1933–1934

style="height:3em"

| rowspan="2" align=left | E. Myrwyn Rowlands

| rowspan="2" {{Party shading/Progressive (Wisconsin)}} | Prog.

| rowspan="2"|

| 62nd

| nowrap | 1935–1936

style="height:3em"

| 63rd

| nowrap| 1937–1938

style="height:3em"

| rowspan="14" align=left | Jess Miller

| rowspan="14" {{Party shading/Republican}} | Rep.

| rowspan="14"| Died Dec. 1965.

| 64th

| nowrap | 1939–1940

style="height:3em"

| 65th

| nowrap | 1941–1942

style="height:3em"

| 66th

| nowrap | 1943–1944

style="height:3em"

| 67th

| 1945–1946

style="height:3em"

| 68th

| 1947–1948

style="height:3em"

| 69th

| 1949–1950

style="height:3em"

| 70th

| nowrap | 1951–1952

style="height:3em"

| 71st

| nowrap | 1953–1954

style="height:3em"

| 72nd

| nowrap | 1955–1956

| rowspan="5" | Columbia, Crawford, Richland, and Sauk counties

style="height:3em"

| 73rd

| nowrap | 1957–1958

style="height:3em"

| 74th

| nowrap | 1959–1960

style="height:3em"

| 75th

| nowrap | 1961–1962

style="height:3em"

| 76th

| nowrap | 1963–1964

style="height:2em"

| rowspan="2" | 77th

| rowspan="2" | 1965–1966

| rowspan="5" | Adams, Columbia, Juneau, Marquette, and Sauk counties

style="height:1em"

| colspan="3" | --Vacant--

style="height:3em"

| rowspan="2" align=left | Walter Terry

| rowspan="2" {{Party shading/Republican}} | Rep.

| rowspan="2" |

| 78th

| nowrap | 1967–1968

style="height:3em"

| 79th

| nowrap | 1969–1970

style="height:3em"

| rowspan="6" align=left | Everett Bidwell

| rowspan="6" {{Party shading/Republican}} | Rep.

| rowspan="6" |

| 80th

| 1971–1972

style="height:3em"

| 81st

| nowrap | 1973–1974

| rowspan="5" | Columbia, Marquette, and Sauk counties and
Southern Adams County
Western Dodge County
Southern Juneau County
Part of Jefferson County

style="height:3em"

| 82nd

| nowrap | 1975–1976

style="height:3em"

| 83rd

| nowrap | 1977–1978

style="height:3em"

| 84th

| nowrap | 1979–1980

style="height:3em"

| 85th

| nowrap | 1981–1982

style="height:3em"

| rowspan="5" align=left | Russ Feingold

| rowspan="5" {{Party shading/Democratic}} | Dem.

| rowspan="5" | Resigned 1992 after elected to United States Senate.

| 86th

| nowrap | 1983–1984

| Columbia County and
Most of Sauk County
Most of Richland County
Northwest Dane County
Western Dodge County

style="height:3em"

| 87th

| nowrap | 1985–1986

| rowspan="4" | Columbia County and
Western Dane County
Part of Dodge County
Part of Green County
Part of Rock County
Part of Sauk County

style="height:3em"

| 88th

| nowrap | 1987–1988

style="height:3em"

| 89th

| nowrap | 1989–1990

style="height:3em"

| 90th

| nowrap | 1991–1992

style="height:1em"

| colspan="3" | --Vacant--

| rowspan="2" | 91st

| rowspan="2" | 1993–1994

| rowspan="6" | Green County and
Western Dane County
Western Rock County

style="height:2em"

| rowspan="3" align=left | Joe Wineke

| rowspan="3" {{Party shading/Democratic}} | Dem.

| rowspan="3" | Won 1993 special election.

style="height:3em"

| 92nd

| nowrap | 1995–1996

style="height:3em"

| 93rd

| nowrap | 1997–1998

style="height:3em"

| rowspan="12" align=left | Jon Erpenbach

| rowspan="12" {{Party shading/Democratic}} | Dem.

| rowspan="12" |

| 94th

| nowrap | 1999–2000

style="height:3em"

| 95th

| nowrap | 2001–2002

style="height:3em"

| 96th

| nowrap | 2003–2004

| rowspan="5" | Green County and
Western Dane County
Part of Lafayette County
Part of Rock County

style="height:3em"

| 97th

| nowrap | 2005–2006

style="height:3em"

| 98th

| nowrap | 2007–2008

style="height:3em"

| 99th

| nowrap | 2009–2010

style="height:3em"

| 100th

| nowrap | 2011–2012

style="height:3em"

| 101st

| nowrap | 2013–2014

| rowspan="5" | File:2011 WI Sen 27.png Western Dane County
Most of Sauk County
Eastern Iowa County
Part of Columbia County
Part of Green County

style="height:3em"

| 102nd

| nowrap | 2015–2016

style="height:3em"

| 103rd

| nowrap | 2017–2018

style="height:3em"

| 104th

| nowrap | 2019–2020

style="height:3em"

| 105th

| nowrap | 2021–2022

style="height:3em"

| rowspan="2" align=left | Dianne Hesselbein

| rowspan="2" {{Party shading/Democratic}} | Dem.

| rowspan="2" | Elected 2022.

| 106th

| nowrap | 2023–2024

| File:2022 WI Sen 27.png Western Dane County,
eastern Sauk County
eastern Iowa County
parts of Columbia County
northwest Green County

107th

| nowrap | 2025–2026

| File:2024 WI Sen 27.svg Northwest Dane County

References

{{Reflist}}