Grant County | |
|---|---|
 Grant County Courthouse, Armand D. Koch, architect, 1902 | |
 Location within the U.S. state of Wisconsin | |
 Wisconsin's location within the U.S. | |
| Coordinates: 42°52′N 90°43′W / 42.86°N 90.71°W | |
| Country |  United States |
| State |  Wisconsin |
| Founded | 1837 |
| Seat | Lancaster |
| Largest city | Platteville |
| Area | |
• Total | 1,183 sq mi (3,060 km2) |
| • Land | 1,147 sq mi (2,970 km2) |
| • Water | 36 sq mi (90 km2) 3.1% |
| Population | |
• Total | 51,938 |
• Estimate (2023) | 51,409  |
| • Density | 45.3/sq mi (17.5/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 3rd |
| Website | www |
Grant County is the most southwestern county in the U.S. state of Wisconsin. As of the 2020 census, the population was 51,938.[2] Its county seat is Lancaster and its largest city is Platteville.[3] The county is named after the Grant River, in turn named after a fur trader who lived in the area when Wisconsin was a territory.[4] Grant County comprises the Platteville Micropolitan Statistical Area. It is in the tri-state area of Wisconsin, Illinois, and Iowa, and is crossed by travelers commuting to Madison, Wisconsin, from a number of eastern Iowan cities, and by residents of northern Illinois traveling to the Twin Cities or La Crosse, Wisconsin.
- ^ Cite error: The named reference
2020-census-55043was invoked but never defined (see the help page). - ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on June 6, 2011. Retrieved January 18, 2014.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "Grant County Place Names". Grant County Historical Society. Retrieved June 3, 2022.