About Union City city, California
Union City city is located in the eastern part of Alameda County, California, United States. The city was incorporated on January 13, 1959, and has a population of about 73,000 people. Union City is a diverse community with a variety of cultures and languages represented. The city is home to a large number of businesses, including many tech companies. Union City is also a major transportation hub, with BART and ACE trains providing service to the Bay Area.