Montana · FIPS 30079 · County seat: Terry
Prairie County, MT GIS & Parcel Viewer
Looking for lot lines or a parcel number in Prairie County, MT? The quickest route is Montana Cadastral (Montana State Library), 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 Prairie County statewide map ↗
Opens svc.mt.gov in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Montana Cadastral (Montana State Library) |
|---|---|
| Type | Statewide map (covers all of Montana) |
| Website | svc.mt.gov |
| Access | Free, no login (checked Oct 2026) |
| County seat | Terry |
| Population | 1,112 (2023 Census Bureau estimate) |
| Land area | 1,737 sq mi |
| FIPS code | 30079 |
Where the parcel data comes from
The link goes to a statewide map (Montana Cadastral (Montana State Library)). It shows parcels for Prairie County along with the rest of Montana. Statewide parcel layers are usually stitched together from county files, so the newest splits or sales may show up on the county's own records first. When we tested the link in October 2026 it opened with no login and no fee.
Searching for a parcel, step by step
- Open Montana Cadastral (Montana State Library) in a new tab and zoom to Prairie County (around Terry).
- Type a street address into the search box, or click directly on a parcel.
- Review the parcel attributes; field names vary by state.
- Confirm anything important with the county assessor, since the statewide layer is a compiled copy.
Many parcel sites expect owner names last name first. If a full name finds nothing, try just the surname.
The county in brief
The U.S. Census Bureau estimated Prairie County's population at 1,112 in 2023, spread over about 1,737 square miles of land, or roughly 0.6 people per square mile. Among Montana's 56 counties, it is the 52nd largest by population. Terry serves as the county seat.
Nearby parcel maps
Parcels close to the edge of Prairie County can fall in the next county over. Neighboring counties:
Before you rely on the lines
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.