Montana · FIPS 30111 · County seat: Billings
Yellowstone County, MT GIS & Parcel Viewer
Here is the direct link to the county parcel map covering Yellowstone County, MT: Parcel Viewer for Yellowstone County. Below you'll find basic facts about the county, steps for using the viewer, and nearby counties.
Open the Yellowstone County parcel map ↗
Opens gis.yellowstonecountymt.gov in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Parcel Viewer for Yellowstone County |
|---|---|
| Type | County-run map |
| Website | gis.yellowstonecountymt.gov |
| Access | Free, no login (checked Oct 2026) |
| County seat | Billings |
| Population | 170,843 (2023 Census Bureau estimate) |
| Land area | 2,633 sq mi |
| FIPS code | 30111 |
About the official source
This map is published by or for Yellowstone County itself, so it reflects the local parcel layer rather than a third-party copy. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the Yellowstone County viewer
- Open the official link in a new tab.
- Accept any disclaimer, then look for a search box that takes street addresses, owners or parcel IDs.
- Zoom in and click a parcel to see its details.
- Use the map's layer controls to add aerials or other layers if they're offered.
Have a tax bill handy? The parcel or account number on it is usually the fastest way to search.
About Yellowstone County
Census Bureau figures put Yellowstone County at about 170,843 people (2023 estimate) on roughly 2,633 square miles of land, which is about 65 residents per square mile. That makes it the most populous of Montana's 56 counties. The county seat is Billings.
Nearby parcel maps
Parcels close to the edge of Yellowstone County can fall in the next county over. Neighboring counties:
- Big Horn County
- Carbon County
- Golden Valley County
- Musselshell County
- Rosebud County
- Stillwater County
- Treasure County
A note on accuracy
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.