Wisconsin · FIPS 55121 · County seat: Whitehall
Trempealeau County, WI GIS & Parcel Viewer
Looking for lot lines or a parcel number in Trempealeau County, WI? The quickest route is Wisconsin Statewide Parcel Map, the statewide parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Trempealeau County statewide map ↗
Opens maps.sco.wisc.edu in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Wisconsin Statewide Parcel Map |
|---|---|
| Type | Statewide map (covers all of Wisconsin) |
| Website | maps.sco.wisc.edu |
| Access | Free, no login (checked Oct 2026) |
| County seat | Whitehall |
| Population | 30,899 (2023 Census Bureau estimate) |
| Land area | 733 sq mi |
| FIPS code | 55121 |
About the official source
The link goes to a statewide map (Wisconsin Statewide Parcel Map). It shows parcels for Trempealeau County along with the rest of Wisconsin. Because a state agency compiles this layer from local data, check with the Trempealeau County assessor or recorder before relying on a recent change. When we tested the link in October 2026 it opened with no login and no fee.
Searching for a parcel, step by step
- Open the statewide map with the button above.
- Search for an address in Trempealeau County, or zoom to the county on the map.
- Click a parcel to see the attributes the state layer includes.
- Write down the parcel number and use it for records searches with the Trempealeau County assessor or recorder.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
The county in brief
Census Bureau figures put Trempealeau County at about 30,899 people (2023 estimate) on roughly 733 square miles of land, which is about 42 residents per square mile. That makes it number 43 out of 72 Wisconsin counties by population. The county seat is Whitehall.
Counties next to Trempealeau County
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Trempealeau County:
A note on accuracy
The lines you see online are approximate. They're good for finding a lot and its parcel number, but a legal boundary question needs the recorded plat or a surveyor.