Montana · FIPS 30011 · County seat: Ekalaka
Carter County, MT GIS & Parcel Viewer
Looking for lot lines or a parcel number in Carter 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 Carter 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 | Ekalaka |
| Population | 1,418 (2023 Census Bureau estimate) |
| Land area | 3,340 sq mi |
| FIPS code | 30011 |
About the official source
This is a statewide map, not a county site. Montana Cadastral (Montana State Library) covers parcels across Montana, and Carter County is one part of it. Because a state agency compiles this layer from local data, check with the Carter County assessor or recorder before relying on a recent change. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this statewide map
- Open the statewide map with the button above.
- Search for an address in Carter County, or zoom to the county on the map.
- Click a parcel to see the attributes the state layer includes.
- Write down the parcel number and use it for records searches with the Carter County assessor or recorder.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
The county in brief
Carter County had an estimated 1,418 residents in 2023, according to the Census Bureau. With about 3,340 square miles of land, that works out to roughly 0.4 people per square mile. Among Montana's 56 counties, it is the 50th largest by population. The county seat is Ekalaka.
Nearby parcel maps
Parcels close to the edge of Carter County can fall in the next county over. Neighboring counties:
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.