Rancho San Diego, California landscape and open-space maintenance. Rancho San Diego is served by the Cajon Valley Union School District and the Grossmont Union High School District. Steele Canyon High School and Valhalla High School are the primary schools in this location. Rancho San Diego is also home to the Cuyamaca College Coyotes. Rancho San Diego, California Rancho San Diego is a census-designated place (CDP) in San Diego County, California. The population was 21,208 at the 2010 census, up from 20,155 at the 2000 census. The area was developed as subdivisions beginning in the 1970s. Rancho San Diego is located at (32.765985, -116.921477). According
University Heights, San Diego Heights and North Park, additional restaurants, bars, coffee shops, and night clubs are within easy reach. The neighborhood sits in a central San Diego location with a broad spectrum of housing options, from cottages, apartments and condominiums, to million-dollar homes. Downtown, Balboa Park, San Diego Airport, Mission Valley, San Diego State University (SDSU, or "state"), are only a few minutes away. The area was founded in 1888. The name "University" (both for the neighborhood and nearby University Avenue) derives from a plan, originally proposed during the land boom of the 1880s, to build a branch of the University of Southern