The 20th Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate. Located in eastern Wisconsin, the district comprises most of Washington County, northern Ozaukee County, and parts of southern Sheboygan County, eastern Fond du Lac County, and eastern Dodge County. It includes the cities of Fond du Lac and West Bend, and the villages of Belgium, Cedar Grove, Fredonia, North Fond du Lac, Saukville, and Slinger.

Current elected officials Dan Feyen is the senator representing the 20th district. He was first elected in 2016 in the 18th Senate district, but ran for election in the 20th district after the 2024 redistricting.

Each Wisconsin State Senate district is composed of three State Assembly districts. The 20th Senate district comprises the 58th, 59th, and 60th Assembly districts. The current representatives of those districts are: Assembly District 58: Rick Gundrum (R–Slinger) Assembly District 59: Robert Brooks (R–Saukville) Assembly District 60: Jerry L. O'Connor (R–Fond du Lac)

The 20th Senate district, in its current borders, crosses two congressional districts. The portion of the district in Dodge and Washington counties falls within Wisconsin's 5th congressional district, which is represented by U.S. Representative Scott L. Fitzgerald. The remainder of the district, in Ozaukee, Sheboygan, and Fond du Lac counties, falls within Wisconsin's 6th congressional district, represented by U.S. Representative Glenn Grothman.

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.

Senator Party Notes Session Years District Definition District created by 1852 Wisc. Act 499. 1852 Fond du Lac County Dem. Redistricted from 4th district. 6th 1853 Charles A. Eldredge Dem. 7th 1854 8th 1855 Edward Pier Rep. 9th 1856 10th 1857 11th 1858 12th 1859 Elihu L. Phillips Rep. 13th 1860 14th 1861 George W. Mitchell Dem. 15th 1862 16th 1863 George F. Wheeler Natl. Union 17th 1864 18th 1865 19th 1866 20th 1867 Dem. 21st 1868 22nd 1869 Hiram S. Town Rep. 23rd 1870 24th 1871 Dem. 25th 1872 26th 1873 27th 1874 28th 1875 Daniel Cavanagh Dem. 29th 1876 30th 1877 Sheboygan County and Louis Wolf Dem. 31st 1878 32nd 1879 Dem. 33rd 1880 34th 1881 35th 1882 36th 1883–1884 Ignatius Klotz Dem. 37th 1885–1886 38th 1887–1888 Major C. Mead Dem. 39th 1889–1890 40th 1891–1892 Dennis T. Phalen Dem. 41st 1893–1894 Sheboygan County1890 population: 42,489 42nd 1895–1896 Fred A. Dennett Rep. 43rd 1897–1898 Ozaukee and Sheboygan counties1895 population: 64,9411900 population: 66,7081910 population: 72,011 44th 1899–1900 George W. Wolff Rep. 45th 1901–1902 46th 1903–1904 47th 1905–1906 48th 1907–1908 Henry Krumrey Rep. 49th 1909–1910 50th 1911–1912 William J. Bichler Dem. 51st 1913–1914 52nd 1915–1916 Theodore Benfey Rep. 53rd 1917–1918 54th 1919–1920 55th 1921–1922 56th 1923–1924 Herman E. Boldt Rep. 57th 1925–1926 58th 1927–1928 59th 1929–1930 60th 1931–1932 Harry W. Bolens Dem. 61st 1933–1934 62nd 1935–1936 63rd 1937–1938 64th 1939–1940 Gustave W. Buchen Rep. 65th 1941–1942 66th 1943–1944 67th 1945–1946 68th 1947–1948 69th 1949–1950 70th 1951–1952 Louis H. Prange Rep. Died Aug. 1957. 71st 1953–1954 72nd 1955–1956 73rd 1957–1958 --Vacant-- Harold F. Huibregtse Rep. Won 1958 special election. 74th 1959–1960 Ernest Keppler Rep. Resigned 1979 after election as Wisconsin circuit court judge. 75th 1961–1962 76th 1963–1964 77th 1965–1966 78th 1967–1968 79th 1969–1970 80th 1971–1972 81st 1973–1974 Northern Ozaukee CountyMost of Sheboygan County 82nd 1975–1976 83rd 1977–1978 --Vacant-- 84th 1979–1980 David W. Opitz Rep. Won 1979 special election. 85th 1981–1982 86th 1983–1984 Ozaukee County andSoutheast Sheboygan CountyEastern Washington County Donald K. Stitt Rep. Resigned 1993. 87th 1985–1986 Most of Ozaukee CountyMost of Washington CountyEastern Dodge CountyPart of Fond du Lac CountyPart of Sheboygan County 88th 1987–1988 89th 1989–1990 90th 1991–1992 91st 1993–1994 Most of Ozaukee CountyMost of Washington CountyPart of Dodge CountyPart of Sheboygan County Mary Panzer Rep. Won 1993 special election. 92nd 1995–1996 93rd 1997–1998 94th 1999–2000 95th 2001–2002 96th 2003–2004 Most of Ozaukee CountyMost of Washington CountySouthern Sheboygan CountySoutheast Fond du Lac CountyPart of Dodge County Glenn Grothman Rep. Resigned 2015 after election to 97th 2005–2006 98th 2007–2008 99th 2009–2010 100th 2011–2012 101st 2013–2014 Most of Washington CountyNorthern Ozaukee CountyWestern Sheboygan CountyEastern Fond du Lac CountyPart of Calumet County —Vacant-- 102nd 2015–2016 Duey Stroebel Rep. 103rd 2017–2018 104th 2019–2020 105th 2021–2022 106th 2023–2024 Most of Washington County,northern Ozaukee Countywestern Sheboygan Countyeastern Fond du Lac Countysouthern Calumet County Dan Feyen Rep. Elected 2024. 107th 2025–2026 Most of Washington Countyeastern Fond du Lac Countynorthern Ozaukee Countyparts of southern Sheboygan Countypart of northeast Dodge County

References

External links Senate District 20 at Wisconsin Legislature Senator Duey Stroebel (2023) Senator Duey Stroebel (2021) Senator Duey Stroebel (2019) Senator Duey Stroebel (2017)