| Image Caption: | 2024 map defined in 2022 map defined in Johnson v. Wisconsin Elections Commission 2011 map was defined in composed of Assembly districts 37, 38, and 39 |
| Chamber: | Senate |
| State: | Wisconsin |
| District: | 13 |
| Representative: | John Jagler |
| Residence: | Watertown |
| Party: | Republican |
| Incumbentsince: | April 28, 2021 (years) |
| Population: | 178,652 |
| Population Year: | 2020 |
| Voting Age: | 141,533 |
| Percent White: | 89.18 |
| Percent Black: | 2.81 |
| Percent Hispanic: | 5.03 |
| Percent Asian: | 0.86 |
| Percent Native American: | 1.57 |
| Percent Pacific Islander: | 0.08 |
| Website: | Official website |
| Notes: | Central Wisconsin |
The 13th Senate District of Wisconsin is one of 33 districts in the Wisconsin Senate.[1] Located in south central Wisconsin, the district comprises all of Green Lake and Marquette counties, along with most of Dodge County, western Fond du Lac County, and parts of northern Jefferson County, eastern Adams County, northeast Columbia County, and southwest Winnebago County. It includes the cities of Beaver Dam, Horicon, Markesan, Mayville, Montello, Princeton, Ripon, Watertown, and Waupun.[2]
John Jagler is the senator representing the 13th district. He was first elected in a 2021 special election. He previously served 8 years in the State Assembly.[3]
Each Wisconsin State Senate district is composed of three Wisconsin State Assembly districts. The 13th Senate district comprises the 37th, 38th, and 39th Assembly districts. The current representatives of those districts are:[4]
The 13th Senate district, in its current borders, crosses three different congressional districts. The part of the district in Adams County falls within Wisconsin's 3rd congressional district, represented by U.S. Representative Derrick Van Orden. The parts of the district in Jefferson County and the southern half of Dodge County fall within Wisconsin's 5th congressional district, represented by Scott L. Fitzgerald. All of the remainder falls within Wisconsin's 6th congressional district, represented by Glenn Grothman.[5]
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 | 1848 | Waukesha County | |||||
| align=left | Joseph Turner | Dem. | 1st | ||||
| Dem. | 2nd | 1849 | |||||
| 3rd | 1850 | ||||||
| align=left | George Hyer | Dem. | Resigned. | 4th | 1851 | ||
| --Vacant-- | 5th | 1852 | |||||
| align=left | E. B. West | Whig | Won 1852 special election. | ||||
| Charles Dunn | Dem. | 6th | 1853 | Lafayette County | |||
| 7th | 1854 | ||||||
| 8th | 1855 | ||||||
| 9th | 1856 | ||||||
| Philemon Simpson | Dem. | 10th | 1857 | ||||
| 11th | 1858 | ||||||
| 12th | 1859 | ||||||
| 13th | 1860 | ||||||
| Samuel Cole | Dem. | 14th | 1861 | ||||
| 15th | 1862 | ||||||
| James Earnest | Dem. | 16th | 1863 | ||||
| 17th | 1864 | ||||||
| Samuel Cole | 18th | 1865 | |||||
| 19th | 1866 | ||||||
| James Earnest | Dem. | 20th | 1867 | ||||
| 21st | 1868 | ||||||
| Hamilton H. Gray | Dem. | 22nd | 1869 | ||||
| 23rd | 1870 | ||||||
| align=left | Henry S. Magoon | Rep. | Redistricted to 11th district. | 24th | 1871 | ||
| align=left | Satterlee Clark Jr. | Dem. | Redistricted from 33rd district. | 25th | 1872 | Most of Dodge County | |
| Samuel D. Burchard | Dem. | 26th | 1873 | ||||
| 27th | 1874 | ||||||
| John A. Barney | Dem. | 28th | 1875 | ||||
| 29th | 1876 | ||||||
| Charles H. Williams | Dem. | 30th | 1877 | ||||
| 31st | 1878 | ||||||
| Edward C. McFetridge | Rep. | 32nd | 1879 | ||||
| 33rd | 1880 | ||||||
| Arthur K. Delaney | Dem. | 34th | 1881 | ||||
| 35th | 1882 | ||||||
| Benjamin F. Sherman | Dem. | 36th | 1883–1884 | Dodge County | |||
| 37th | 1885–1886 | ||||||
| Charles Pettibone | Ind. | 38th | 1887–1888 | ||||
| 39th | 1889–1890 | ||||||
| William Voss | Dem. | 40th | 1891–1892 | ||||
| 41st | 1893–1894 | ||||||
| Michael E. Burke | Dem. | 42nd | 1895–1896 | ||||
| 43rd | 1897–1898 | Dodge County | |||||
| Michael A. Jacobs | Dem. | 44th | 1899–1900 | ||||
| 45th | 1901–1902 | ||||||
| William C. North | Dem. | 46th | 1903–1904 | ||||
| 47th | 1905–1906 | ||||||
| Paul O. Husting | Dem. | 48th | 1907–1908 | ||||
| 49th | 1909–1910 | ||||||
| 50th | 1911–1912 | ||||||
| 51st | 1913–1914 | Dodge, Washington counties | |||||
| Byron Barwig | Dem. | 52nd | 1915–1916 | ||||
| 53rd | 1917–1918 | ||||||
| Herman J. F. Bilgrien | Rep. | 54th | 1919–1920 | ||||
| 55th | 1921–1922 | ||||||
| 56th | 1923–1924 | ||||||
| 57th | 1925–1926 | ||||||
| William H. Markham | Rep. | 58th | 1927–1928 | ||||
| 59th | 1929–1930 | ||||||
| Eugene A. Clifford | Dem. | 60th | 1931–1932 | ||||
| 61st | 1933–1934 | ||||||
| Frank E. Panzer | Prog. | 62nd | 1935–1936 | ||||
| 63rd | 1937–1938 | ||||||
| Jesse Peters | Rep. | 64th | 1939–1940 | ||||
| 65th | 1941–1942 | ||||||
| Frank E. Panzer | Rep. | Died Aug. 1969. | 66th | 1943–1944 | |||
| 67th | 1945–1946 | ||||||
| 68th | 1947–1948 | ||||||
| 69th | 1949–1950 | ||||||
| 70th | 1951–1952 | ||||||
| 71st | 1953–1954 | ||||||
| 72nd | 1955–1956 | ||||||
| 73rd | 1957–1958 | ||||||
| 74th | 1959–1960 | ||||||
| 75th | 1961–1962 | ||||||
| 76th | 1963–1964 | ||||||
| 77th | 1965–1966 | Jefferson, Washington &<br /> | |||||
| 78th | 1967–1968 | ||||||
| 79th | 1969–1970 | ||||||
| --Vacant-- | |||||||
| Dale McKenna | Dem. | Won 1969 special election. | |||||
| 80th | 1971–1972 | ||||||
| 81st | 1973–1974 | ||||||
| 82nd | 1975–1976 | ||||||
| 83rd | 1977–1978 | ||||||
| Peter D. Bear | Dem. | Resigned Sep. 1980. | 84th | 1979–1980 | |||
| --Vacant-- | |||||||
| Barbara Lorman | Rep. | Won 1980 special election. | 85th | 1981–1982 | |||
| 86th | 1983–1984 | ||||||
| 87th | 1985–1986 | ||||||
| 88th | 1987–1988 | ||||||
| 89th | 1989–1990 | ||||||
| 90th | 1991–1992 | ||||||
| 91st | 1993–1994 | ||||||
| Scott L. Fitzgerald | Rep. | Resigned 2020 after elected to U.S. House. | 92nd | 1995–1996 | |||
| 93rd | 1997–1998 | ||||||
| 94th | 1999–2000 | ||||||
| 95th | 2001–2002 | ||||||
| 96th | 2003–2004 | ||||||
| 97th | 2005–2006 | ||||||
| 98th | 2007–2008 | ||||||
| 99th | 2009–2010 | ||||||
| 100th | 2011–2012 | ||||||
| 101st | 2013–2014 | ||||||
| 102nd | 2015–2016 | ||||||
| 103rd | 2017–2018 | ||||||
| 104th | 2019–2020 | ||||||
| --Vacant-- | 105th | 2021–2022 | |||||
| John Jagler | Rep. | Won 2021 special election. | |||||
| 106th | 2023–2024 | Southeast Columbia County, most of Dodge County, northeast Dane County, northern Jefferson County, part of Waukesha County | |||||