Founded in 1836, Rock County is one of 72 counties in the state of Wisconsin. Historically, Rock County was formed from Milwaukee County. The city of Janesville is the county seat. With FIPS code of 105, Rock County has a population of 164,381 and area of 718.14 square miles (1,860 km2).
List of all cities in Rock County, WI alphabetically
- Afton, WI
- Avalon, WI
- Beloit, WI
- Clinton, WI
- Edgerton, WI
- Evansville, WI
- Footville, WI
- Hanover, WI
- Janesville, WI
- Milton, WI
- Orfordville, WI