Columbia County, Wisconsin
Columbia County | |
|---|---|
Columbia County courthouse in December 2014 | |
Location within the U.S. state of Wisconsin | |
Wisconsin's location within the U.S. | |
| Coordinates: 43°28′N 89°20′W / 43.47°N 89.33°W | |
| Country | United States |
| State | Wisconsin |
| Founded | 1846 |
| Named after | Christopher Columbus |
| Seat | Portage |
| Largest city | Portage |
| Area | |
• Total | 796 sq mi (2,060 km2) |
| • Land | 766 sq mi (1,980 km2) |
| • Water | 30 sq mi (80 km2) 3.8% |
| Population (2020) | |
• Total | 58,490 |
• Estimate (2023) | 58,091 |
| • Density | 73/sq mi (28/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 6th |
| Website | www |
Columbia County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 58,490. Its county seat and largest city is Portage. The county was created in 1846 as part of Wisconsin Territory. Columbia County is part of the Madison, WI Metropolitan Statistical Area as well as the Madison-Janesville-Beloit, WI Combined Statistical Area.