Rock County, Wisconsin
Rock County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 163,687.[1] Its county seat is Janesville.[2]
| Rock County, Wisconsin | |
| Map | |
 Location in the state of Wisconsin | |
 Wisconsin's location in the U.S. | |
| Statistics | |
| Founded | 1839 |
|---|---|
| Seat | Janesville |
| Largest City | Janesville |
| Area - Total - Land - Water |
726 sq mi (1,880 km²) 718 sq mi (1,860 km²) 8.0 sq mi (21 km²), 1.1% |
| Population - Density |
|
| Time zone | Central: UTC-6/-5 |
| Website: www.co.rock.wi.us | |
| Named for: Rock River | |
References
- ↑ "QuickFacts: Rock County, Wisconsin". United States Census Bureau. Retrieved January 21, 2024.
- ↑ "Find a County". National Association of Counties. Retrieved June 7, 2011.
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