Jefferson County Wisconsin

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.
  • Country: United States
  • State: Wisconsin
  • Founded: 1839
  • Named for: Thomas Jefferson
  • Seat: Jefferson
  • Largest city: Watertown
  • Congressional district: 5th

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Data from: en.wikipedia.org