Wisconsin · FIPS 55045 · County seat: Monroe
Green County, WI GIS & Parcel Viewer
Looking for lot lines or a parcel number in Green County, WI? The quickest route is the Green County ArcGIS parcel map, the county parcel map we keep on file for this county. We link straight to it and add a few tips for getting around.
Open the Green 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 | Green County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Monroe |
| Population | 36,951 (2023 Census Bureau estimate) |
| Land area | 584 sq mi |
| FIPS code | 55045 |
About the official source
Green County runs this viewer (directly or through a contracted vendor), which makes it the closest thing to the source for local parcel lines. Our October 2026 check found the map open to the public, with no account or payment needed.
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.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
About Green County
The U.S. Census Bureau estimated Green County's population at 36,951 in 2023, spread over about 584 square miles of land, or roughly 63 people per square mile. That makes it number 40 out of 72 Wisconsin counties by population. Monroe serves as the county seat.
Neighboring counties
Parcels close to the edge of Green County can fall in the next county over. Neighboring counties:
A note on accuracy
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.