Wisconsin · FIPS 55021 · County seat: Portage
Columbia County, WI GIS & Parcel Viewer
Use this page to reach the official county parcel map for Columbia County, Wisconsin. The button below opens the Columbia County ArcGIS parcel map in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Columbia County parcel map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | Columbia County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Portage |
| Population | 58,091 (2023 Census Bureau estimate) |
| Land area | 766 sq mi |
| FIPS code | 55021 |
Who runs this map
It is a county-level map: Columbia County or the company it hires keeps the parcel layer up to date. As of our October 2026 test, anyone could open it without signing in or paying.
Searching for a parcel, step by step
- Open the link. This viewer is an ArcGIS Experience Builder app, so its layout is custom to the publisher.
- Look for a search box or search widget and type in a street address or parcel ID.
- Click a parcel to see its details in a pop-up or side panel.
- Check the toolbar for a layer list or basemap switcher if you want aerials or other layers.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
Columbia County by the numbers
The U.S. Census Bureau estimated Columbia County's population at 58,091 in 2023, spread over about 766 square miles of land, or roughly 76 people per square mile. Among Wisconsin's 72 counties, it is the 26th largest by population. The county seat is Portage.
Nearby parcel maps
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Columbia County:
- Adams County (state list)
- Dane County
- Dodge County
- Green Lake County
- Juneau County
- Marquette County
- Sauk County
A note on accuracy
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.