Alamo is an unincorporated community and census-designated place (CDP) in Contra Costa County, California, in the United States. It is a suburb located in the San Francisco Bay Area’s East Bay region, approximately 28 miles (45 km) east of San Francisco. Alamo is equidistant between the city of Walnut Creek and the town of Danville. As of the 2010 census, the population was 14,750.
Alamo (from the Spanish álamo, “poplar”) was named for the poplar trees that lined San Ramon Creek.
As an unincorporated community, Alamo does not have a government of its own. Police services are provided by the Contra Costa County Office of the Sheriff. Fire and EMS services are provided by the San Ramon Valley Fire Protection District.
Alamo, with a median household income of $140,561 (as of 2011), is one of the wealthiest communities in the United States.