Alamo is a cdp located in Contra Costa County, in the state of California (CA), United States. Nestled in the Pacific division of the West region, it covers an area of 20.6 square miles (53.0 km²) and sits at an elevation of 280 ft. With a population of approximately 15,626 residents, Alamo offers a vibrant community life.
The town's population is composed of about 49.63% males and 50.37% females, and it has a population density of 758.54 people per square mile (292.88/km²). Alamo lies at a latitude of 37.86 and a longitude of -122.03, operating in the UTC-8.
Locals reflect a blend of American ancestry, with roots primarily in United States (0%), followed by English (15.2%), German (17.6%), and Scotch-Irish (0%) heritage. The town is identified by the ZIP code 94507.