Montana · FIPS 30047 · County seat: Polson
Lake County, MT GIS & Parcel Viewer
Looking for lot lines or a parcel number in Lake County, MT? The quickest route is Lake County Address and Parcel Map: Current, 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 Lake County parcel map ↗
Opens lake-county-mt.maps.arcgis.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Lake County Address and Parcel Map: Current |
|---|---|
| Type | County-run map |
| Website | lake-county-mt.maps.arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Polson |
| Population | 33,338 (2023 Census Bureau estimate) |
| Land area | 1,490 sq mi |
| FIPS code | 30047 |
Who runs this map
It is a county-level map: Lake 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 Lake County viewer
- Open the link. It is an ArcGIS Instant App, a simple Esri template with a map and a few tools.
- Use the search box to jump to an address or place.
- Click a parcel to open its pop-up.
- Look for buttons along the edge of the map for layers, legend or basemaps.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
Lake County by the numbers
Census Bureau figures put Lake County at about 33,338 people (2023 estimate) on roughly 1,490 square miles of land, which is about 22 residents per square mile. That makes it number 9 out of 56 Montana counties by population. Another 164 square miles of water fall within its lines, according to Census mapping. Its county seat is Polson.
Counties next to Lake County
Parcels close to the edge of Lake County can fall in the next county over. Neighboring counties:
A note on accuracy
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.