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 of San Diego High School University of San Diego High School The University of San Diego High School (USDHS), also known as The University High School (UHS) or "Uni", was a Catholic, co-educational, college preparatory secondary school located in San Diego, California. In 2005, the school was closed and reopened in Carmel Valley, San Diego as Cathedral Catholic High School. University High School, as the school was commonly known (from its inception through the 1980s) was founded in 1957 on a site overlooking Mission Bay to the west and Mission Valley to the south, and dedicated to providing a value-centered education to San Diego's young