Wisconsin's 27th Senate district

The 27th Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate.[1] 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.[2]

Wisconsin's 27th
State Senate district

Map
Map
Map
2024 map defined in 2023 Wisc. Act 94
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
Senator
  Dianne Hesselbein
DMiddleton
since January 3, 2023 (1 years)
Demographics80.11% White
4.56% Black
5.47% Hispanic
8.27% Asian
1.29% Native American
0.09% Hawaiian/Pacific Islander
Population (2020)
 • Voting age
179,647
141,303
WebsiteOfficial website
NotesSouth-central Wisconsin

Current elected officials

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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.[3]

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.[5]

Past senators

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The district has previously been represented by:[6]

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. 1856 Marathon, Portage, Waupaca, Waushara, and Wood counties
Luther Hanchett Rep. 10th 1857
11th 1858
12th 1859
13th 1860
Edward L. Browne Rep. 14th 1861
15th 1862 Marathon, Portage, Waupaca, and Wood counties
Alexander S. McDill Rep. 16th 1863
Natl. Union 17th 1864
Milan H. Sessions Natl. Union 18th 1865
19th 1866
Edward L. Browne Natl. Union 20th 1867
21st 1868
Charles M. Webb Rep. 22nd 1869
23rd 1870
Myron Reed Dem. Redistricted to 21st district. 24th 1871
William M. Griswold Rep. Redistricted from 25th district. 25th 1872 Columbia County
Evan O. Jones Rep. 26th 1873
27th 1874
Levi W. Barden Rep. 28th 1875
29th 1876
30th 1877 Adams and Columbia counties
31st 1878
Charles L. Dering Rep. 32nd 1879
33rd 1880
Gilbert E. McKeeby Rep. 34th 1881
35th 1882 Adams, Columbia, and Marquette counties
1880 population: 43,713
1885 population: 46,263
William T. Parry Rep. 36th 1883–1884
37th 1885–1886
Levi E. Pond Rep. 38th 1887–1888
39th 1889–1890
Russell C. Falconer Dem. 40th 1891–1892
41st 1893–1894 Sauk County and
Western Columbia County
1890 population: 44,629
William F. Conger Rep. 42nd 1895–1896
43rd 1897–1898 Columbia and Sauk counties
1895 population: 63,787
1900 population: 64,127
1910 population: 63,998
William G. Bissell Rep. 44th 1899–1900
45th 1901–1902
George Wylie Rep. 46th 1903–1904
47th 1905–1906
Charles L. Pearson Dem. 48th 1907–1908
49th 1909–1910
John M. True Rep. 50th 1911–1912
51st 1913–1914
George Staudenmayer Dem. 52nd 1915–1916
53rd 1917–1918
Rep. 54th 1919–1920
55th 1921–1922
56th 1923–1924 Columbia, Richland, and Sauk counties
57th 1925–1926
Robert Caldwell Rep. 58th 1927–1928
59th 1929–1930
Fred W. Zantow Rep. 60th 1931–1932
61st 1933–1934
E. Myrwyn Rowlands Prog. 62nd 1935–1936
63rd 1937–1938
Jess Miller Rep. Died Dec. 1965. 64th 1939–1940
65th 1941–1942
66th 1943–1944
67th 1945–1946
68th 1947–1948
69th 1949–1950
70th 1951–1952
71st 1953–1954
72nd 1955–1956 Columbia, Crawford, Richland, and Sauk counties
73rd 1957–1958
74th 1959–1960
75th 1961–1962
76th 1963–1964
77th 1965–1966 Adams, Columbia, Juneau, Marquette, and Sauk counties
--Vacant--
Walter Terry Rep. 78th 1967–1968
79th 1969–1970
Everett Bidwell Rep. 80th 1971–1972
81st 1973–1974 Columbia, Marquette, and Sauk counties and
Southern Adams County
Western Dodge County
Southern Juneau County
Part of Jefferson County
82nd 1975–1976
83rd 1977–1978
84th 1979–1980
85th 1981–1982
Russ Feingold Dem. Resigned 1992 after elected to United States Senate. 86th 1983–1984 Columbia County and
Most of Sauk County
Most of Richland County
Northwest Dane County
Western Dodge County
87th 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 1987–1988
89th 1989–1990
90th 1991–1992
--Vacant-- 91st 1993–1994 Green County and
Western Dane County
Western Rock County
Joe Wineke Dem. Won 1993 special election.
92nd 1995–1996
93rd 1997–1998
Jon Erpenbach Dem. 94th 1999–2000
95th 2001–2002
96th 2003–2004 Green County and
Western Dane County
Part of Lafayette County
Part of Rock County
97th 2005–2006
98th 2007–2008
99th 2009–2010
100th 2011–2012
101st 2013–2014
 
Western Dane County
Most of Sauk County
Eastern Iowa County
Part of Columbia County
Part of Green County
102nd 2015–2016
103rd 2017–2018
104th 2019–2020
105th 2021–2022
Dianne Hesselbein Dem. Elected 2022. 106th 2023–2024
 
Western Dane County,
eastern Sauk County
eastern Iowa County
parts of Columbia County
northwest Green County

References

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  1. ^ "Senate District 27". Wisconsin Legislature. Retrieved March 24, 2021.
  2. ^ "Wisconsin Legislative Districts - Senate District 27 Boundaries". Wisconsin Legislature. Retrieved March 24, 2021.
  3. ^ "Senator Dianne H. Hesselbein". Wisconsin Legislature. Retrieved January 3, 2023.
  4. ^ "Representative Dave Considine". Wisconsin Legislature. Retrieved March 24, 2021.
  5. ^ "State of Wisconsin Congressional Districts" (PDF). Wisconsin Legislature. Retrieved March 10, 2021.
  6. ^ Wisconsin Blue Book, 1991-92 edition, Statistics: History, pages 657-666.
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