Grant County, Wisconsin
Grant County , Wisconsin Grant County Courthouse, Armand D. Koch, architect, 1902 Location in the U.S. state of Wisconsin Wisconsin's location in the U.S. Founded 1837 Seat Lancaster Largest city Platteville Area • Total 1,183 sq mi (3,064 km 2 ) • Land 1,147 sq mi (2,971 km 2 ) • Water 36 sq mi (93 km 2 ), 3.1% Population • (2010) 51,208 • Density 45/sq mi (17/km 2 ) Congressional district 3rd Time zone Central: UTC−6/−5 Website www.co.grant.wi.gov Grant County is a county located in the U.S. state of Wisconsin. As of the 2010 census, the population was 51,208. [1] Its county seat is Lancaster. [2] Grant County comprises the Platteville, WI Micropolitan Statistical Area. It is in the tri-state area of Illinois, Iowa, and Wisconsin, and is crossed by travelers commuting to Madison from a number of eastern Iowan cities, and by residents of northern Illinois traveling to the Twin Cities or La Crosse, Wisconsin. Contents 1 History 1.1 Indian presence 1.2 Colonial period 1.3