San Carlos city, California
Official LSAD Designation: San Carlos city • Census GEOID: 0665070
• San Mateo County
San Carlos city is an incorporated city in San Mateo County, California. According to official records from the Census (2025), San Carlos city had an estimated population of 29,261 residents. Official Census Bureau geographic records classify this community under LSAD designation San Carlos city (GEOID 0665070).
Local Government Administration U.S. Census Bureau GMAF
City Of San Carlos
Municipal
Official Title:
City Clerk
Address:
600 ELM ST, SAN CARLOS CA 94070-3018
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 | 29,261 | 2025 |
| Median Household Income | $237,470 | 2020-2024 |
| Median Home Value | $2,000,000+ | 2020-2024 |
| Land Area | 5.41 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).