Millbrae city, California
Official LSAD Designation: Millbrae city • Census GEOID: 0647486
• San Mateo County
Millbrae city is an incorporated city in San Mateo County, California. According to official records from the Census (2025), Millbrae city had an estimated population of 22,869 residents. Official Census Bureau geographic records classify this community under LSAD designation Millbrae city (GEOID 0647486).
Local Government Administration U.S. Census Bureau GMAF
City Of Millbrae
Municipal
Official Title:
Exec Asst To City Manager
Address:
621 MAGNOLIA AVE, MILLBRAE CA 94030-1852
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 | 22,869 | 2025 |
| Median Household Income | $163,476 | 2020-2024 |
| Median Home Value | $1,934,900 | 2020-2024 |
| Land Area | 3.27 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).