Grant County, Wisconsin
Grant County is a county in Wisconsin. Its county FIPS code is 55043. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 55043
- Representative coordinates
- 42.870028, -90.694229
- County type
- County
- County seat or government
- Lancaster
- Resident population, July 2025
- 52,446
- Land area
- 2,972.282 km²
- Water area
- 92.642 km²
- State
- Wisconsin
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Grant County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
53518 · 53543 · 53554 · 53569 · 53573 · 53801 · 53802 · 53804 · 53805 · 53806 · 53807 · 53808 · 53809 · 53810 · 53811 · 53812 · 53813 · 53816 · 53817 · 53818 · 53820 · 53821 · 53825 · 53827
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Use the US government local-office directory ↗ to find the office responsible for your address. A county website has not been confidently matched here. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Bagley village, WI
- Bloomington village, WI
- Blue River village, WI
- Boscobel city, WI
- Cassville village, WI
- Cuba City city, WI
- Dickeyville village, WI
- Fennimore city, WI
- Glen Haven CDP, WI
- Hazel Green village, WI
- Kieler CDP, WI
- Lancaster city, WI
- Livingston village, WI
- Montfort village, WI
- Mount Hope village, WI
- Muscoda village, WI
- Patch Grove village, WI
- Platteville city, WI
- Potosi village, WI
- Sandy Hook CDP, WI
- Tennyson village, WI
- Woodman village, WI
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county at your current point, check its ZIP area, or find its physical time zone.