The City of Richmond is located 16 miles northeast of San Francisco, directly across San Francisco Bay. Richmond is on a peninsula separating San Francisco Bay (on the south) and San Pablo Bay (to the north), and the city has 32 total miles of shoreline. The city's total area is 56.0 square miles, of which 33.7 are land area and 22.3 are water area. Richmond's central location. Richmond is situated near major metropolitan cities and major new growth areas. San Francisco is within 35 minutes from Richmond by freeway; Oakland is 20 minutes; San Jose is approximately one hour's drive to the south; and Sacramento, the state capitol, is approximately 90 minutes to the east. Central Marin County is 15 minutes from Richmond directly across the Richmond-San Rafael Bridge. The freeways provide direct access from Richmond to major new growth areas along Interstate 80 north and east to Vallejo, Fairfield and Sacramento; along Interstate 680 in central Contra Costa County; and south along Interstate 880 to the San Jose area. The population within a 30-mile radius of Richmond is over 3.7 million, and within a 70-mile radius is approximately 7.8 million. Location in Contra Costa County. Richmond is located on the western shore of Contra Costa County, and is the largest city in the "West County" region consisting of five cities: Richmond, El Cerrito, San Pablo, Hercules, and Pinole.