San Mateo County, California
San Mateo County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 742,893 (2024)
ID: 123088
|
County | Official County Government |
Contact: DEPUTY COUNTY MANAGER
400 COUNTY CTR, REDWOOD CITY CA 94063-1668
|
|
GUS Population: 103,006 (2024)
ID: 123157
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
330 W 20TH AVE, SAN MATEO CA 94403-1388
|
|
GUS Population: 101,418 (2024)
ID: 211215
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR
333 90TH ST, DALY CITY CA 94015-1896
|
|
GUS Population: 82,982 (2024)
ID: 100736
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR OF FINANCE
1017 MIDDLEFIELD RD, REDWOOD CITY CA 94063-1993
|
|
GUS Population: 64,660 (2024)
ID: 193116
|
Municipal | Municipal Government Within County |
Contact: MAYOR
400 GRAND AVE, SOUTH SAN FRANCISCO CA 94080-3634
|
|
GUS Population: 42,035 (2024)
ID: 161265
|
Municipal | Municipal Government Within County |
Contact: ASSOCIATE PLANNER
567 EL CAMINO REAL, SAN BRUNO CA 94066-4299
|
|
GUS Population: 37,056 (2024)
ID: 161267
|
Municipal | Municipal Government Within County |
Contact: ADM SERVICES DIRECTOR
170 SANTA MARIA AVE, PACIFICA CA 94044-2506
|
|
GUS Population: 33,040 (2024)
ID: 161264
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
701 LAUREL ST, MENLO PARK CA 94025-3439
|
|
GUS Population: 32,657 (2024)
ID: 100738
|
Municipal | Municipal Government Within County |
Contact: MAYOR
610 FOSTER CITY BLVD, FOSTER CITY CA 94404-2299
|
|
GUS Population: 30,885 (2024)
ID: 161262
|
Municipal | Municipal Government Within County |
Contact: MAYOR
501 PRIMROSE RD, BURLINGAME CA 94010-3997
|
|
GUS Population: 29,403 (2024)
ID: 161266
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
600 ELM ST, SAN CARLOS CA 94070-3018
|
|
GUS Population: 29,296 (2024)
ID: 183847
|
Municipal | Municipal Government Within County |
Contact: MAYOR
2415 UNIVERSITY AVE, STE 5, EAST PALO ALTO CA 94303-1148
|
|
GUS Population: 27,132 (2024)
ID: 207602
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
1 TWIN PINES LANE, SUITE 340, BELMONT CA 94002
|
|
GUS Population: 23,321 (2024)
ID: 203974
|
Municipal | Municipal Government Within County |
Contact: EXEC ASST TO CITY MANAGER
621 MAGNOLIA AVE, MILLBRAE CA 94030-1852
|
|
GUS Population: 11,324 (2024)
ID: 161268
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
501 MAIN ST, HALF MOON BAY CA 94019-1921
|
|
GUS Population: 11,171 (2024)
ID: 161263
|
Municipal | Municipal Government Within County |
Contact: ASSOCIATE PLANNER
1600 FLORIBUNDA AVE, HILLSBOROUGH CA 94010-6498
|
|
GUS Population: 7,022 (2024)
ID: 123156
|
Municipal | Municipal Government Within County |
Contact: CITY MANAGER
91 ASHFIELD RD, ATHERTON CA 94027-3896
|
|
GUS Population: 5,123 (2024)
ID: 183846
|
Municipal | Municipal Government Within County |
Contact: TOWN MANAGER
PO BOX 620005, WOODSIDE CA 94062-0005
|
|
GUS Population: 4,667 (2024)
ID: 161269
|
Municipal | Municipal Government Within County |
Contact: DEPUTY CITY MANAGER
50 PARK PL, BRISBANE CA 94005-1399
|
|
GUS Population: 4,282 (2024)
ID: 161270
|
Municipal | Municipal Government Within County |
Contact: TOWN MANAGER
765 PORTOLA RD, PORTOLA VALLEY CA 94028-7299
|
|
GUS Population: 1,428 (2024)
ID: 183845
|
Municipal | Municipal Government Within County |
Contact: ACTING CITY PLANNER
1190 EL CAMINO REAL, COLMA CA 94014-3212
|