The Regions of the San Diego metropolitan area and San Diego County,[1][2] as they cover the same area are:


None of these regions has an accepted defined area, and the borders will vary depending on the source. Some backcountry communities such as Julian, Pine Valley, and Borrego Springs are not always placed into any particular region due to their isolation and distance from major urban centers, although the San Diego Association of Governments puts them within the East County Major Statistical Area.[4][note 1]


  1. ^ The SANDAG Major Statistical Area named East County is further divided into four subregional areas - Palomar-Julian, Laguna-Pine Valley, Mountain Empire, and Anza-Borrego - and five community planning areas - North Mountain, Julian, Central Mountain, Mountain Empire, and Desert; thought it excludes East Suburban, another MSA commonly thought of as East County


  1. ^ Mellin, Maribeth, and Onstott, Jane. Insider's Guide to San Diego. 5th ed. Morris Book Publishing. 2010. p. 1
  2. ^ Mazza, Cris. Indigenous: Growing Up Californian City Lights Books. 2003. p. xviii.
  3. ^ Ted Couro and Christina Hutcheson (1973), Dictionary of Mesa Grande Diegueño, Malki Museum Press, Morongo Indian Reservation, Banning, California
  4. ^ "Major Statistical Areas of the San Diego Region". San Diego Association of Governments. Retrieved March 22, 2010.