Union City, California

Union City
Union City
City in California
	Union City Bay Area Rapid Transit (BART) station.
	Flag
	Location in Alameda County and the state of California
	Union City Location in California Union City Union City (the United States)
	Coordinates: 37°35′47″N 122°02′54″W / 37.59639°N 122.04833°W
Country	United States
State	California
County	Alameda
Incorporated	January 26, 1959
Government
• Mayor	Gary Singh
• City Council	Jaime Patiño ; Scott Sakakihara ; Jeff Wang ; Lance Nishihira
Area
• Total	19.22 sq mi (49.77 km2)
• Land	19.22 sq mi (49.77 km2)
• Water	0.00 sq mi (0.00 km2)
Population (2020)
• Total	70,143
• Density	3,600/sq mi (1,400/km2)
Time zone	UTC-8 (PST)
• Summer (DST)	UTC-7 (PDT)
ZIP code	94587
Area code(s)	510, 341
FIPS code	06-81204
Website	unioncity.org

Union City is a city in Alameda County, California, United States in the San Francisco Bay Area. The population in the 2020 census was 70,143, up from 69,628 in the 2010 census.

It is located approximately 19 miles (31 km) south of Oakland, 30 miles (48 km) from San Francisco, and 20 miles (32 km) north of San Jose.

It was incorporated in 1959, combining the communities of Alvarado and Decoto. Alvarado is a California Historical Landmark (#503).^[4] The city celebrated its 50th anniversary in 2009.^[5]

^ "California Cities by Incorporation Date". California Association of Local Agency Formation Commissions. Archived from the original (Word) on November 3, 2014. Retrieved March 27, 2013.
^ "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 1, 2020.
^ "U.S. Census Bureau QuickFacts: Union City city, California". United States Census Bureau. Retrieved September 26, 2021.
^ Cite error: The named reference CHL was invoked but never defined (see the help page).
^ 50 Years: Union City. Retrieved July 15, 2010.