La Presa is a census-designated place (CDP) in San Diego County, California, United States. The population of was 34,169 at the 2010 census, up from 32,721 at the 2000 census. It was a part of the neighboring Spring Valley CDP from 1970 to 1990.

La Presa is served by a 91977 ZIP code, which is considered Spring Valley according to the USPS.