Jefferson County
County in 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... Wikipedia
Cities: Jefferson, Fort Atkinson, Johnson Creek, and more
County seat: Jefferson
Area: 583 mi²
Population: 85,784 (2022)