Boulder city, Colorado
Official LSAD Designation: Boulder city • Census GEOID: 0807850
• Boulder County
Boulder city is an incorporated city in Boulder County, Colorado. According to official records from the Census (2025), Boulder city had an estimated population of 105,689 residents. Official Census Bureau geographic records classify this community under LSAD designation Boulder city (GEOID 0807850).
Local Government Administration U.S. Census Bureau GMAF
City Of Boulder
Municipal
Official Title:
Mayor
Address:
PO BOX 791, BOULDER CO 80306-0791
County Of Boulder
County
Official Title:
Chairman
Address:
PO BOX 471, BOULDER CO 80306-0471
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 105,689 | 2025 |
| Median Household Income | $87,493 | 2020-2024 |
| Median Home Value | $1,039,500 | 2020-2024 |
| Land Area | 26.97 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).