Sunnyvale, California

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Sunnyvale
City
Downtown Sunnyvale
Seal
Location in Santa Clara County and the State of California
Sunnyvale Location in the United States
Coordinates: 37°22′16″N 122°2′15″W / 37.37111°N 122.03750°W / 37.37111; -122.03750
Country	United States
State	California
County	Santa Clara
Incorporated	December 24, 1912[1]
Government
• Type	Council–manager[2]
• Mayor	Larry Klein[2]
• Vice mayor	Omar Din[2]
• City Manager	Kent Steffens[3]
Area [4]
• Total	22.78 sq mi (58.99 km2)
• Land	22.06 sq mi (57.14 km2)
• Water	0.72 sq mi (1.86 km2)  3.09%
Elevation [5]	125 ft (38 m)
Population  (2020)[6]
• Total	155,805
• Rank	2nd in Santa Clara County 36th in California
• Density	6,800/sq mi (2,600/km2)
Time zone	UTC−8 (PST)
• Summer (DST)	UTC−7 (PDT)
ZIP codes	94085–94090
Area codes	408/669 and 650
FIPS code	06-77000
GNIS feature IDs	1656344, 2412009
Website	sunnyvale.ca.gov

Sunnyvale (/ˈsʌniveɪl, vəl/) is a city located in the Santa Clara Valley in northwest Santa Clara County in the U.S. state of California.

Sunnyvale lies along the historic El Camino Real and Highway 101 and is bordered by portions of San Jose to the north, Moffett Federal Airfield and NASA Ames Research Center to the northwest, Mountain View to the northwest, Los Altos to the southwest, Cupertino to the south, and Santa Clara to the east.

Sunnyvale's population was 155,805 at the 2020 census, making it the second most populous city in the county (after San Jose) and the seventh most populous city in the San Francisco Bay Area.

As one of the major cities that make up California's high-tech area known as Silicon Valley, Sunnyvale is the birthplace of the video game industry, former location of Atari headquarters, and the location of a fictional computer game company in the 1983 film WarGames. Many technology companies are headquartered in Sunnyvale and many more operate there, including several aerospace/defense companies.

Sunnyvale was also the home to Onizuka Air Force Station, often referred to as "the Blue Cube" because of the color and shape of its windowless main building. The facility, previously known as Sunnyvale Air Force Station, was named for the deceased Space Shuttle Challenger astronaut Ellison Onizuka. It served as an artificial satellite control facility of the U.S. military until August 2010 and has since been decommissioned and demolished.

Sunnyvale is one of the few U.S. cities to have a single unified Department of Public Safety, where all personnel are trained as firefighters, police officers, and EMTs, so that they can respond to an emergency in any of the three roles.

Library services for the city are provided by the Sunnyvale Public Library, located at the Sunnyvale Civic Center.