Fremont

City, Alameda county, California, U.S., on the southeast shore of San Francisco Bay (there spanned by the Dumbarton Bridge), on the Hetch Hetchy Aqueduct. Site of Mission San José de Guadalupe (founded in 1797), the city, named for John C. Frémont, the Western explorer, was formed in 1956 through the amalgamation of five communities—Centerville, Irvington, Niles, Mission San José, and Warm