San Pasqual is a census-designated place in Los Angeles County, California. It lies between San Marino and Pasadena. The major streets in San Pasqual are San Pasqual Street, South Sierra Madre Blvd., and Oakdale Street. San Pasqual is served by the Pasadena post office responsible for ZIP code 91107, and thus locations there are properly addressed with the final line reading "Pasadena, CA 91107". The population was 2,041 at the 2010 census.