Montana · FIPS 30001 · County seat: Dillon
Beaverhead County, MT GIS & Parcel Viewer
Looking for lot lines or a parcel number in Beaverhead County, MT? The quickest route is the Beaverhead 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 Beaverhead 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 | Beaverhead County ArcGIS parcel map |
|---|---|
| Type | County-run map |
| Website | experience.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Dillon |
| Population | 9,885 (2023 Census Bureau estimate) |
| Land area | 5,543 sq mi |
| FIPS code | 30001 |
About the official source
It is a county-level map: Beaverhead 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.
Finding a property on this map
- 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.
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
Beaverhead County had an estimated 9,885 residents in 2023, according to the Census Bureau. With about 5,543 square miles of land, that works out to roughly 1.8 people per square mile. Among Montana's 56 counties, it is the 22nd largest by population. The county seat is Dillon.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Beaverhead County:
- Deer Lodge County
- Madison County
- Ravalli County
- Silver Bow County
- Clark County, ID
- Fremont County, ID
- Lemhi County, ID
Maps vs. surveys
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.