Thompson Falls city, Montana
Official LSAD Designation: Thompson Falls city • Census GEOID: 3073825
• Sanders County
Thompson Falls city is an incorporated city in Sanders County, Montana. According to official records from the Census (2025), Thompson Falls city had an estimated population of 1,543 residents. Official Census Bureau geographic records classify this community under LSAD designation Thompson Falls city (GEOID 3073825).
Local Government Administration U.S. Census Bureau GMAF
City Of Thompson Falls
Municipal
Official Title:
Mayor
Address:
PO BOX 99, THOMPSON FALLS MT 59873-0099
County Of Sanders
County
Official Title:
Rural Addresssing
Address:
PO BOX 519, THOMPSON FALLS MT 59873-0519
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 1,543 | 2025 |
| Median Household Income | $46,313 | 2020-2024 |
| Median Home Value | $266,400 | 2020-2024 |
| Land Area | 1.60 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).