Boulder city, Montana
Official LSAD Designation: Boulder city • Census GEOID: 3008575
• Jefferson County
Boulder city is an incorporated city in Jefferson County, Montana. According to official records from the Census (2025), Boulder city had an estimated population of 1,305 residents. Official Census Bureau geographic records classify this community under LSAD designation Boulder city (GEOID 3008575).
Local Government Administration U.S. Census Bureau GMAF
City Of Boulder
Municipal
Official Title:
City Clerk
Address:
PO BOX 68, BOULDER MT 59632-0068
County Of Jefferson
County
Official Title:
Clerk And Recorder
Address:
PO BOX H, BOULDER MT 59632
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 1,305 | 2025 |
| Median Household Income | $72,500 | 2020-2024 |
| Median Home Value | $212,300 | 2020-2024 |
| Land Area | 1.12 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).