Union City

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Union City

Total population

70,143

Coordinates37.60°, -122.02°

Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.

Overview

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. A 2026 population estimate puts the city at 67,464 residents.

Geography

Coordinates & boundaries from the US Census TIGER/Line shapefiles.