Richmond ( ) is a city in western Contra Costa County, California, United States. The city was incorporated on August 7, 1905. Located in the eastern region of the San Francisco Bay Area, Richmond borders the cities of San Pablo, Albany, El Cerrito and Pinole in addition to the unincorporated communities of North Richmond, Hasford Heights, Kensington, El Sobrante, Bayview-Montalvin Manor, Tara Hills, and East Richmond Heights, and briefly San Francisco on Red Rock Island.