Travelers are voting Grapevine Hills, Merriam Mountains and Oat Hills (San Diego County) as the best of 15 mountain ranges near San Diego. There are 7 mountain ranges near Oceanside a city just 30 km from San Diego and 2 mountain ranges near Playas de Rosarito which is 32 km distant. The most popular of these are Buena Vista Hills (San Diego County) near Oceanside and Jamul Mountains in Playas de Rosarito. You can find 695 mountain ranges in California and 5144 mountain ranges in the country of United States. Our members favorite in California is Mount Shasta and Mount McKinley is the top pick in United States. Want more? Check out our map of mountain ranges near San Diego.