City (pop., 2000: 203,413), California, U.S. It is located on the southeastern shore of San Francisco Bay (there spanned by the Dumbarton Bridge).
The site of Mission San José de Guadalupe (founded 1797), the city was formed in 1956 through the amalgamation of five communities: Centerville, Irvington, Niles, Mission San José, and Warm Springs. Freeway connections stimulated residential and industrial growth as part of the San Francisco Bay development.