San Bernardino principality is in Southern California.
Southern California 's population encompasses seven metropolitan areas : the Los Angeles metropolitan area -LRB- Los Angeles and Orange counties -RRB- , the Inland Empire , -LRB- Riverside and San Bernardino counties -RRB- , the San Diego metropolitan area , the Oxnard -- Thousand Oaks -- Ventura metropolitan area , the Santa Barbara metropolitan area , the San Luis Obispo metropolitan area , and the El Centro area.
