Union City Transit is a public transit service in Union City, California, in the San Francisco Bay Area. As of March 2021, Union City Transit operates 5 bus lines that connect riders to local destinations, such as schools, shopping centers, and the Union City BART station. All routes operate 7 days a week. Union City Transit serves Union City and along Whipple Rd in southern Hayward. AC Transit, Dumbarton Express, Stanford Marguerite Shuttle also provide service to and from Union City.