Travelers are voting Merriam Mountains, Oat Hills (San Diego County) and Pine Hills 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 Merriam Mountains near Oceanside and Jamul Mountains in Playas de Rosarito. You can find 695 mountain ranges in California and 5140 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.