Santa Clara County, California

Santa Clara County
Interactive map of Santa Clara County
Location in the state of California
Coordinates: 37°14′N 121°43′W / 37.233°N 121.717°W / 37.233; -121.717
CountryUnited States
StateCalifornia
RegionSan Francisco Bay Area
IncorporatedFebruary 18, 1850
Named afterMission Santa Clara de Asís, St. Clare of Assisi
County seat
and largest city
San Jose
Government
  TypeCouncil–CEO
  BodyBoard of Supervisors
  Board PresidentSusan Ellenberg
  Board Vice PresidentOtto Lee
  Board of Supervisors
Supervisors
  • Sylvia Arenas
  • Betty Duong
  • Otto Lee
  • Susan Ellenberg
  • Margaret Abe-Koga
  Chief executive officerJames R. Williams, J.D.
Area
  Total
1,304 sq mi (3,380 km2)
  Land1,290 sq mi (3,300 km2)
  Water14 sq mi (40 km2)
Highest elevation
4,216 ft (1,285 m)
Population
 (2020)
  Total
1,936,259
  Rank6th in California
  Density1,500/sq mi (570/km2)
GDP
  Total$400.778 billion (2022)
Time zoneUTC−8 (Pacific)
  Summer (DST)UTC−7 (Pacific Daylight Time)
Area codes408/669, 650
FIPS code06-085
GNIS feature ID277307
Congressional districts16th, 17th, 18th, 19th
Websitesantaclaracounty.gov

Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of California, with a population of 1,936,259 as of the 2020 census. Santa Clara County and neighboring San Benito County form the San Jose–Sunnyvale–Santa Clara metropolitan statistical area, which is part of the larger San Jose–San Francisco–Oakland combined statistical area. Santa Clara is the most populous county in the San Francisco Bay Area and in Northern California.

The county seat and largest city with a population of 971,233 is San Jose, the 13th-most populous city in the nation, California's third-most populous city, and the most populous city in Northern California.

Home to Silicon Valley, Santa Clara County is an economic center for high technology, and had the third-highest gross domestic product (GDP) per capita in the world as of 2015 behind Zürich and Oslo, according to the Brookings Institution. Located on the southern coast of San Francisco Bay, the urbanized Santa Clara Valley within Santa Clara County contains most of the county's population. More recently, extensive droughts in California, further complicated by drainage of the Anderson reservoir within the county for seismic repairs, have strained the county's water security.

As of 2020, it has a median household income of $130,890, the third-highest household income of any county in the nation behind Loudoun County, Virginia and Falls Church, Virginia, and the highest of any county in the Western United States.