El Cajon Valley is located approximately 17 miles northeast of San Diego, California. It is not a city or a town, but rather an area that encompasses parts of several cities, including El Cajon, La Mesa, and Santee. The region has been inhabited for thousands of years by the Kumeyaay people, and was later settled by Spanish explorers in the 1700s. The modern city of El Cajon was officially incorporated in 1912. If you are looking for a mobile home in El Cajon Valley – we can help you find the right place.