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.
Under the McLaughlin Administration, Richmond was the largest city in the United States served by a Green Party mayor. As of the 2010 U.S. Census, the city's population is at 103,710, making it the second largest city in the United States to be named Richmond, after Richmond, Virginia.