Wisconsin's 33rd State Senate district
From 2024 to 2031 From 2022 to 2023 From 2012 to 2021 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 97, 98, and 99
Senator	Chris Kapenga R–Delafield since August 6, 2015 (9 years)
Demographics	93.27% White 0.79% Black 2.59% Hispanic 1.49% Asian 1.1% Native American 0.08% Hawaiian/Pacific Islander
Population (2020)  • Voting age	177,842 138,561
Website	Official website
Notes	Southeast Wisconsin

The 33rd Senate district of Wisconsin is one of 33 districts in the Wisconsin Senate.^[1] Located in southeastern Wisconsin, the district comprises most of western Waukesha County along with parts of eastern Jefferson County, southwest Washington County, and southeast Dodge County. It includes the cities of Delafield, Hartford, and Oconomowoc, and the villages of Chenequa, Dousman, Eagle, Hartland, Lac La Belle, Merton, Neosho, North Prairie, Palmyra, Sussex, and Wales.^[2]

Chris Kapenga is the senator representing the 33rd district. He was first elected to the Senate in a 2015 special election. Before becoming a state senator, he was a member of the Wisconsin State Assembly from 2011 through 2015.^[3]

Each Wisconsin State Senate district is composed of three State Assembly districts. The 33rd Senate district comprises the 97th, 98th, and 99th Assembly districts. The current representatives of those districts are:

• Assembly District 97: Scott Allen (R–Waukesha)
• Assembly District 98: Adam Neylon (R–Pewaukee)
• Assembly District 99: Cindi Duchow (R–Delafield)

The district is located entirely within Wisconsin's 5th congressional district, which is represented by U.S. Representative Scott L. Fitzgerald.^[4]

• 
  Downtown Palmyra
• 
  Downtown Hartford
• 
  Pike Lake State Park
• 
  Downtown Oconomowoc

Previous senators include:^[5]

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 1861 Wisc. Act 216.				1861	Eastern Dodge County Town of Ashippun Town of Herman Town of Hubbard Town of Hustisford Town of Lebanon Town of LeRoy Town of Lomira Town of Rubicon Town of Theresa Town of Williamstown Village of Horicon
Satterlee Clark	Dem.		15th	1862
			16th	1863
			17th	1864
			18th	1865
			19th	1866
			20th	1867	Eastern Dodge County Town of Ashippun Town of Clyman Town of Emmet Town of Herman Town of Hubbard Town of Hustisford Town of Lebanon Town of LeRoy Town of Lomira Town of Rubicon Town of Theresa Town of Williamstown Village of Horicon Wards 5, 6, City of Watertown
			21st	1868
			22nd	1869
			23rd	1870
			24th	1871
Lyman Morgan	Dem.	Redistricted from the 3rd district.	25th	1872	Ozaukee and Washington counties 1870 population: 39,483 1875 population: 40,407 1880 population: 38,904 1885 population: 39,489
Adam Schantz	Dem.		26th	1873
			27th	1874
Gilead J. Wilmot	Dem.		28th	1875
			29th	1876
Philip Schneider	Dem.		30th	1877
			31st	1878
Lyman Morgan	Dem.		32nd	1879
			33rd	1880
George F. Hunt	Dem.		34th	1881
			35th	1882
Edward Reed Blake	Dem.		36th	1883–1884
			37th	1885–1886
Peter Lochen	Dem.		38th	1887–1888
			39th	1889–1890	Ozaukee and Washington counties and Eastern Waukesha County Town of Brookfield Town of Lisbon Town of Menomonee Town of Muskego Town of New Berlin Town of Pewaukee Town of Waukesha Village of Waukesha 1885 population: 55,580
Frederick W. Horn	Dem.	Died January 1893	40th	1891–1892
--Vacant--			41st	1893–1894	Ozaukee and Washington counties and Eastern Dodge County Town of Burnett Town of Chester Town of Hubbard Town of LeRoy Town of Lomira Town of Theresa Town of Trenton Town of Williamstown City of Mayville South Ward, City of Waupun 1890 population: 52,778
Stephen F. Mayer	Dem.		42nd	1895–1896
			43rd	1897–1898	Washington and Waukesha counties 1895 population: 60,639 1900 population: 58,818
Alfred M. Jones	Rep.		44th	1899–1900
			45th	1901–1902
Ernst Merton	Dem.		46th	1903–1904
			47th	1905–1906
Henry Lockney	Rep.		48th	1907–1908
			49th	1909–1910
George E. Hoyt	Rep.		50th	1911–1912
			51st	1913–1914	Jefferson and Waukesha counties 1910 population: 71,406
Charles Mülberger	Dem.		52nd	1915–1916
			53rd	1917–1918
			54th	1919–1920
			55th	1921–1922
John C. Schuman	Rep.		56th	1923–1924
			57th	1925–1926
			58th	1927–1928
			59th	1929–1930
William H. Edwards	Rep.		60th	1931–1932
			61st	1933–1934
Chester Dempsey	Dem.		62nd	1935–1936
			63rd	1937–1938
William A. Freehoff	Rep.		64th	1939–1940
			65th	1941–1942
			66th	1943–1944
			67th	1945–1946
Chester Dempsey	Rep.	Died October 1969.	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	Northern Waukesha County
			78th	1967–1968
			79th	1969–1970
--Vacant--
Roger P. Murphy	Rep.	Resigned February 1980 to become a Wisconsin circuit court judge.	80th	1971–1972
			81st	1973–1974	Northern Waukesha County
			82nd	1975–1976
			83rd	1977–1978
			84th	1979–1980
--Vacant--
Susan Engeleiter	Rep.	Won 1980 special election. Resigned April 1989 to become Administrator of the Small Business Administration.
			85th	1981–1982
			86th	1983–1984
			87th	1985–1986	Eastern Waukesha County Part of Milwaukee County
			88th	1987–1988
			89th	1989–1990
--Vacant--
Margaret Farrow	Rep.	Won 1989 special election. Resigned May 2001 to become Lieutenant Governor of Wisconsin.
			90th	1991–1992
			91st	1993–1994	Eastern Waukesha County Part of Milwaukee County
			92nd	1995–1996
			93rd	1997–1998
			94th	1999–2000
			95th	2001–2002
--Vacant--
Theodore Kanavas	Rep.
			96th	2003–2004	Northern Waukesha County Southeast Washington County
			97th	2005–2006
			98th	2007–2008
			99th	2009–2010
Rich Zipperer	Rep.	Resigned Aug. 2012.	100th	2011–2012
--Vacant--
Paul Farrow	Rep.	Resigned July 2015.	101st	2013–2014	Central Waukesha County
			102nd	2015–2016
--Vacant--
Chris Kapenga	Rep.	Won 2015 special election.
			103rd	2017–2018
			104th	2019–2020
			105th	2021–2022
			106th	2023–2024	Central Waukesha County

• Senate District 33 at Wisconsin Legislature
  • Senator Chris Kapenga (2023)
  • Senator Chris Kapenga (2021)
  • Senator Chris Kapenga (2019)
  • Senator Chris Kapenga (2017)