El Sobrante is unincorporated and lies within Contra Costa County. Main roads include San Pablo Dam Road
(a major road running from Richmond and San Pablo, through El Sobrante, past EBMUD's San Pablo Reservoir), Valley View
Road and Appian Way.
San Pablo Dam Road and Appian Way both connect to Interstate 80 to the west. San Pablo Dam Road also
connects to the east with the town of Orinda and State Highway 24.