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
San Diego–Tijuana Mountain Empire. The region is home to over twenty higher education schools including numerous universities, private, and state colleges and maintains an excellent educational infrastructure. Tijuana is home to high ranked national colleges and universities and San Diego is ninth most educated city in the United States. Notable schools included the Autonomous University of Baja California, Tijuana; Ibero-American University, Tijuana; CETYS University, Tijuana; University of San Diego (USD); San Diego State University; University of California, San Diego (UCSD); California Western School of Law; Thomas Jefferson School of Law; and UCSD School of Medicine. Of the colleges in San Diego–Tijuana, UCSD