Platteville is the largest city in Grant County in southwestern Wisconsin. The population was 11,224 at the 2010 census, growing 12% since the 2000 Census. Much of this growth is likely due to the enrollment increase of the University of Wisconsin–Platteville. It is the principal city of the Platteville Micropolitan Statistical area which has an estimated population of 49,681.
Platteville is located at 42°44′13″N 90°28′39″W / 42.73707°N 90.477501°W / 42.73707; -90.477501 (42.73707, -90.477501). It is in the Hollow Region, as named by early southern miners, in the rolling hills of southwestern Wisconsin.
According to the United States Census Bureau, the city has a total area of 4.2 square miles (10.9 km2).None of the area is covered with water.