La Presa (Spanish for "The Dam") is a census-designated place (CDP) in the East County region of San Diego County, California, United States.

La Presa belonged to the neighboring Spring Valley CDP from its inception in 1970 through 1990.

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

[3] According to the United States Census Bureau, the CDP has a total area of 6.0 square miles (16 km2).

The racial makeup of La Presa was 9,045 (24.0%) White, 4,428 (13.0%) African American, 282 (0.8%) Native American, 3,958 (10.5%) Asian, 410 (1.2%) Pacific Islander, 8,238 (24.1%) from other races, and 2,535 (7.4%) from two or more races.

There were 10,236 housing units at an average density of 1,828.0 per square mile (705.8/km2).

The racial makeup of the CDP was 25.6% White, 14.5% African American, 0.9% Native American, 9.8% Asian, 1.1% Pacific Islander, 16.4% from other races, and 7.1% from two or more races.

In the California State Legislature, La Presa is in the 40th Senate District, represented by Republican Brian Jones, and in the 71st Assembly District, represented by Republican Kate Sanchez.

[7] In the United States House of Representatives, La Presa is in Invalid California congressional district number: 53.