Place
Jefferson County
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Not who you're looking for? Others named Jefferson County: county in Idaho, United States · county in the state of Washington, United States · county in Florida, United States · county in Georgia, United States
Jefferson County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 84,900. Its county seat is Jefferson. Jefferson County comprises the Watertown-Fort Atkinson, WI Micropolitan Statistical Area, which is also included in the Milwaukee-Racine-Waukesha, WI Combined Statistical Area.