Montana · FIPS 30057 · County seat: Virginia City
Madison County, MT GIS & Parcel Viewer
Madison County, Montana parcel data lives on MadCo Web Map for Madison County. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Madison County parcel map ↗
Opens experience.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | MadCo Web Map for Madison County |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Virginia City |
| Population | 9,521 (2023 Census Bureau estimate) |
| Land area | 3,588 sq mi |
| FIPS code | 30057 |
Where the parcel data comes from
It is a county-level map: Madison County or the company it hires keeps the parcel layer up to date. When we tested the link in October 2026 it opened with no login and no fee.
How to use the Madison County viewer
- Press the button above; an ArcGIS Experience Builder app opens in a new tab. Accept any splash or disclaimer screen.
- Search by address or parcel ID, or pan to the area.
- Select a parcel to view the information the publisher makes available.
- Explore the app's panels for layers, legends or printing.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
Madison County by the numbers
The U.S. Census Bureau estimated Madison County's population at 9,521 in 2023, spread over about 3,588 square miles of land, or roughly 2.7 people per square mile. By population it ranks 24th of 56 counties in Montana. The county seat is Virginia City.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Madison County:
Before you rely on the lines
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.