Rancho San Diego, California 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 to the United States Census Bureau, the CDP has a total area of , all land. The chance of earthquake damage in Rancho San Diego is much lower than California average and is much higher than the national average. The risk of tornado damage in Rancho San Diego is
Rancho San Diego, California about the same as California average and is much lower than the national average. The average temperature of Rancho San Diego is 64.73°F. According to the Köppen Climate Classification system, Rancho San Diego has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps. The neighbors in the Rancho San Diego neighborhood in El Cajon are upper-middle income, making it an above average income neighborhood. Rancho San Diego has a higher income than 64.4% of the neighborhoods in America. 28.7% of its working population is employed in executive, management, and professional occupations. The most common language spoken in the Rancho San