Trempealeau County, Wisconsin
Trempealeau County is a county in Wisconsin. Its county FIPS code is 55121. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 55121
- Representative coordinates
- 44.303050, -91.358867
- County type
- County
- County seat or government
- Whitehall
- Resident population, July 2025
- 31,171
- Land area
- 1,898.374 km²
- Water area
- 23.332 km²
- State
- Wisconsin
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Trempealeau 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
54612 · 54616 · 54625 · 54627 · 54630 · 54642 · 54659 · 54661 · 54738 · 54747 · 54758 · 54760 · 54770 · 54773
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Trempealeau County government website ↗ is the next stop for county offices, tax, voting, jury and records information. 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.
Areas sharing the mapped boundary
These areas touch this mapped boundary.
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