Wisconsin's 99th State Assembly district | |||||
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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 | |||||
Assemblymember |
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Demographics | 93.5% White 0.79% Black 2.4% Hispanic 1.45% Asian 1.09% Native American 0.11% Hawaiian/Pacific Islander | ||||
Population (2020) • Voting age | 59,032 45,709 | ||||
Website | Official website | ||||
Notes | Southeast Wisconsin |
The 99th Assembly district of Wisconsin is one of 99 districts in the Wisconsin State Assembly. [1] Located in southeastern Wisconsin, the district comprises parts of northwest Waukesha County, northeast Jefferson County, and southeast Dodge County. It includes the cities of Oconomowoc and part of the city of Hartford, and the villages of Chenequa, Hartland, Lac La Belle, Nashotah, and Neosho. [2] The district is represented by Republican Barbara Dittrich, since January 2025; Dittrich previously represented the 38th district from 2019 to 2025. [3]
The 99th Assembly district is located within Wisconsin's 33rd Senate district, along with the 97th and 98th Assembly districts. [4]
Member | Party | Residence | Counties represented | Term start | Term end | Ref. |
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District created | ||||||
Kenneth Merkel | Rep. | Brookfield | Waukesha | January 1, 1973 | January 6, 1975 | [5] |
Susan Engeleiter | Rep. | January 6, 1975 | January 1, 1979 | [6] | ||
John M. Young | Rep. | January 1, 1979 | January 3, 1983 | [7] | ||
Thomas A. Loftus | Dem. | Sun Prairie | Dane | January 3, 1983 | January 7, 1985 | [8] |
John M. Young | Rep. | Brookfield | Milwaukee, Waukesha | January 7, 1985 | January 5, 1987 | [9] |
Margaret Farrow | Rep. | Elm Grove | January 5, 1987 | January 2, 1989 | [10] | |
--Vacant-- | January 2, 1989 | September 22, 1989 | ||||
Frank Urban | Rep. | Brookfield | September 22, 1989 | January 6, 2003 | [11] | |
Waukesha | ||||||
Michael A. Lehman | Rep. | Hartford | Dodge, Waukesha | January 6, 2003 | January 3, 2005 | [12] |
Don Pridemore | Rep. | January 3, 2005 | January 7, 2013 | [13] | ||
Chris Kapenga | Rep. | Delafield | Waukesha | January 7, 2013 | August 6, 2015 | [14] |
--Vacant-- | August 6, 2015 | October 9, 2015 | ||||
Cindi Duchow | Rep. | Delafield | October 9, 2015 | January 6, 2025 | [15] | |
Jefferson, Waukesha | ||||||
Barbara Dittrich | Rep. | Oconomowoc | Dodge, Jefferson, Waukesha | January 6, 2025 | Current | [3] |