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 State University by the state Board of Education." By the 1930s the school had outgrown its original campus. In 1931 it moved to its current location on a mesa at what was then the eastern edge of San Diego. In 1935, the school expanded its offerings beyond teacher education and became San Diego State College. In 1960, San Diego State College became a part of the California State Colleges system, now known as The California State University. Finally in 1972, San Diego State College became California State University, San Diego, and in 1974 San Diego State University (SDSU). John F. Kennedy, then