Belmont city, California
Official LSAD Designation: Belmont city • Census GEOID: 0605108
• San Mateo County
Belmont city is an incorporated city in San Mateo County, California. According to official records from the Census (2025), Belmont city had an estimated population of 28,752 residents. Official Census Bureau geographic records classify this community under LSAD designation Belmont city (GEOID 0605108).
Local Government Administration U.S. Census Bureau GMAF
City Of Belmont
Municipal
Official Title:
City Manager
Address:
1 TWIN PINES LANE, SUITE 340, BELMONT CA 94002
County Of San Mateo
County
Official Title:
Deputy County Manager
Address:
400 COUNTY CTR, REDWOOD CITY CA 94063-1668
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 28,752 | 2025 |
| Median Household Income | $205,297 | 2020-2024 |
| Median Home Value | $2,000,000+ | 2020-2024 |
| Land Area | 4.63 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).