Santa Clara County, California

Santa Clara 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
COUNTY OF SANTA CLARA GUS Population: 1,926,325 (2024) ID: 183756	County	Official County Government	Contact: CENSUS PROGRAM MANAGER 70 W HEDDING ST, SAN JOSE CA 95110-1768
CITY OF SAN JOSE GUS Population: 997,368 (2024) ID: 100745	Municipal	Municipal Government Within County	Contact: MAYOR 200 E SANTA CLARA ST, FL 18, SAN JOSE CA 95113-1905
CITY OF SUNNYVALE GUS Population: 156,792 (2024) ID: 161281	Municipal	Municipal Government Within County	Contact: ASSITANT TO THE CITY MANAGER PO BOX 3707, SUNNYVALE CA 94088-3707
CITY OF SANTA CLARA GUS Population: 133,132 (2024) ID: 161280	Municipal	Municipal Government Within County	Contact: PRINCIPAL PLANNER ADVANCED PLANNING 1500 WARBURTON AVENUE, SANTA CLARA CA 95050-3792
CITY OF MOUNTAIN VIEW GUS Population: 87,316 (2024) ID: 161279	Municipal	Municipal Government Within County	Contact: MAYOR 500 CASTRO ST, MOUNTAIN VIEW CA 94041-2092
CITY OF MILPITAS GUS Population: 79,746 (2024) ID: 211982	Municipal	Municipal Government Within County	Contact: CITY MANAGER 455 E CALAVERAS BLVD, MILPITAS CA 95035-5479
CITY OF PALO ALTO GUS Population: 67,658 (2024) ID: 123159	Municipal	Municipal Government Within County	Contact: ASSISTANT TO THE CITY MANAGER PO BOX 10250, PALO ALTO CA 94303-0862
CITY OF GILROY GUS Population: 60,390 (2024) ID: 161276	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR 190 1ST ST, GILROY CA 95020-5129
CITY OF CUPERTINO GUS Population: 58,710 (2024) ID: 161275	Municipal	Municipal Government Within County	Contact: SENIOR PLANNER 10300 TORRE AVE, CUPERTINO CA 95014-3255
CITY OF MORGAN HILL GUS Population: 45,952 (2024) ID: 161278	Municipal	Municipal Government Within County	Contact: ASSISTANT CITY MANAGER 17555 PEAK AVE, MORGAN HILL CA 95037-4136
CITY OF CAMPBELL GUS Population: 42,895 (2024) ID: 123158	Municipal	Municipal Government Within County	Contact: EXECUTIVE ASSISTANT 70 N 1ST ST, UPPR, CAMPBELL CA 95008-1459
TOWN OF LOS GATOS GUS Population: 32,952 (2024) ID: 161277	Municipal	Municipal Government Within County	Contact: MAYOR 110 E MAIN ST, LBBY, LOS GATOS CA 95030-6945
CITY OF LOS ALTOS GUS Population: 30,864 (2024) ID: 100742	Municipal	Municipal Government Within County	Contact: FINANCE DIRECTOR 1 N SAN ANTONIO RD, LOS ALTOS CA 94022-3000
CITY OF SARATOGA GUS Population: 30,486 (2024) ID: 203977	Municipal	Municipal Government Within County	Contact: MAYOR 13777 FRUITVALE AVE, SARATOGA CA 95070-5199
TOWN OF LOS ALTOS HILLS GUS Population: 8,435 (2024) ID: 203976	Municipal	Municipal Government Within County	Contact: MAYOR 26379 W FREMONT RD, LOS ALTOS HILLS CA 94022-2698
CITY OF MONTE SERENO GUS Population: 3,563 (2024) ID: 183848	Municipal	Municipal Government Within County	Contact: CITY MANAGER 18041 SARATOGA LOS GATOS RD, MONTE SERENO CA 95030-4299