South San Gabriel is a census-designated place (CDP) in Los Angeles County, California, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 0.8 square miles (2.2 km2), over 99% of it land.

[17] Prior to 1970, it was included in the unincorporated area of the Southwest San Gabriel Valley census county division (1960 pop.

The racial makeup of South San Gabriel was 2,198 (27.2%) White (5.6% Non-Hispanic White),[24] 83 (1.0%) African American, 56 (0.7%) Native American, 3,990 (49.4%) Asian, 4 (0.0%) Pacific Islander, 1,427 (17.7%) from other races, and 312 (3.9%) from two or more races.

5,545 people (68.7% of the population) lived in owner-occupied housing units and 2,289 people (28.4%) lived in rental housing units.

There were 2,166 housing units at an average density of 2,597.0 per square mile (1,002.7/km2).

Schools include: In the state legislature, South San Gabriel is located in California's 22nd State Senate district, represented by Democrat Susan Rubio, and in California's 49th State Assembly district, represented by Democrat Ed Chau.

Federally, South San Gabriel is located in California's 27th congressional district, which is represented by Democrat Judy Chu.

The Los Angeles County Sheriff's Department (LASD) operates the Temple Station in Temple City, serving South San Gabriel.