Grant County, Wisconsin

Grant County
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 / 42.86; -90.71
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  (2020)[1]
• Total	51,938
• Density	45.3/sq mi (17.5/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	3rd
Website	www.co.grant.wi.gov

Grant County is a county in the U.S. state of Wisconsin. In 2020, 51,938 people lived there.^[1] Its county seat is Lancaster.^[2] Grant County also is in the tri-state area with Illinois, Iowa, and Wisconsin.

The county has a total area of 1,183 square miles (3,064.0 km²). Of this, 1,148 square miles (2,973.3 km²) is land and 35 square miles (90.6 km²) (3.1%) is water.

• Sinnipee

1. ↑ ^{1.0 1.1 1.2} "QuickFacts: Grant County, Wisconsin". United States Census Bureau. Retrieved January 20, 2024.
2. ↑ "Find a County". National Association of Counties. Retrieved 2008-01-31.
3. ↑ "U.S. Decennial Census". United States Census Bureau. Retrieved August 4, 2015.
4. ↑ "Historical Census Browser". University of Virginia Library. Archived from the original on August 11, 2012. Retrieved August 4, 2015.
5. ↑ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved August 4, 2015.
6. ↑ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Archived (PDF) from the original on 2022-10-09. Retrieved August 4, 2015.

• Grant County official government website
• Grant County Health and Demographic Data Archived 2011-10-02 at the Wayback Machine

42°52′N 90°43′W / 42.86°N 90.71°W / 42.86; -90.71