Grant County, Wisconsin

Grant County sits in the southwestern corner of Wisconsin, where rolling hills meet the mighty Mississippi River. It’s part of the Driftless Area, a unique region that escaped the glaciers during the last Ice Age, leaving behind rugged bluffs, deep valleys, and scenic countryside.

Farming has been part of life here for generations, with fields spread across the rolling landscape. The county also has a strong mining heritage, especially around communities like Platteville, where the history of mineral extraction is still part of the local identity.

Outdoor lovers can explore Wyalusing State Park, a popular spot for hiking, camping, and enjoying views of the surrounding rivers and bluffs. When autumn arrives, the hillsides burst into brilliant colors, making the Mississippi River scenery even more impressive. Small towns are scattered throughout Grant County, each adding its own character to this peaceful corner of Wisconsin.

Category Details
County Name Grant County
County Seat Lancaster
Cities, Towns, and Communities Platteville, Lancaster, Boscobel, Fennimore, Cassville
Interstates and Highways US-18, US-61, WI-35, WI-80
Etymology Named after the lead “grant” lands given to early settlers
FIPS Code 55-043
Total Area (Land and Water) 1,183 sq mi (Land: 1,147 sq mi; Water: 36 sq mi)
Time Zone Central Time Zone (CT)
State Wisconsin
Coordinates 42.8674° N, 90.7064° W
Major Landmarks Potosi Brewery, Stonefield Historic Site, Wyalusing State Park
Adjacent Counties (and Direction) Crawford County (North), Richland County (Northeast), Iowa County (East), Lafayette County (East), Jo Daviess County, Illinois (Southeast), Dubuque County, Iowa (South), Clayton County, Iowa (West)
Population Approximately 51,000
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