Santa Clara County, California

County seat: San Jose · Population 1.9 million (2025) · 1,291 sq mi

Santa Clara County is the 6th most populous of California's 58 counties, with 1,914,391 people (2025 estimate). Its county seat is San Jose. The map shows its 15 cities and towns and the 6 neighboring counties.

Map of Santa Clara County, California with cities, towns and the county boundary
Santa Clara County, California with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
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Santa Clara County facts

County seat
San Jose
Population (2025 estimate)
1,914,391 −1.1% since 2020
Land area
1,291 sq mi 37th largest of 58
Water area
13 sq mi
Population density
1,483 per sq mi
Established
1850
Named after
Mission Santa Clara de Asís Spanish mission in Santa Clara, California
Largest city
San Jose 989,814
Median household income
$164,281
Cities and towns
15 plus 9 CDPs
ZIP codes
63
Time zone
Pacific
FIPS code
06085

Cities and towns in Santa Clara County

Santa Clara County has 15 incorporated cities, towns and villages. Populations count the people living inside Santa Clara County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
San Jose (county seat)City989,814
SunnyvaleCity156,577
Santa ClaraCity133,446
Mountain ViewCity85,438
MilpitasCity78,596
Palo AltoCity67,609
GilroyCity60,764
CupertinoCity58,333
Morgan HillCity45,625
CampbellCity42,490
Los GatosTown32,576
Los AltosCity30,965
SaratogaCity30,418
Los Altos HillsTown8,419
Monte SerenoCity3,566

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Stanford18,662
Alum Rock10,440
East Foothills7,139
San Martin6,954
Burbank5,333
Cambrian Park3,494
Loyola3,430
Lexington Hills2,692
Fruitdale986

ZIP codes in Santa Clara County

63 ZIP codes reach into Santa Clara County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Santa Clara County, 2020–2025

Santa Clara County shrank by 21,883 people (−1.1%) between April 2020 and July 2025: 40,266 more births than deaths and a net loss of 59,186 people from migration.

Year (July 1)Population
20201,931,349
20211,882,528
20221,880,151
20231,890,377
20241,907,910
20251,914,391

Neighboring counties

Printable Santa Clara County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

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Sources

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