| City | Population |
| Aguanga, CA | 1,128 |
| Alpine, CA | 14,236 |
| Bonita, CA | 12,538 |
| Bonsall, CA | 3,982 |
| Bostonia, CA | 15,379 |
| Boulevard, CA | 315 |
| Camp Pendleton North, CA | 5,200 |
| Camp Pendleton South, CA | 10,616 |
| Campo, CA | 2,684 |
| Carlsbad, CA | 105,328 |
| Casa de Oro-Mount Helix, CA | 18,762 |
| Chula Vista, CA | 243,916 |
| Coronado, CA | 18,912 |
| Crest, CA | 2,593 |
| Del Mar, CA | 4,161 |
| Descanso, CA | 1,423 |
| El Cajon, CA | 99,478 |
| Encinitas, CA | 59,518 |
| Escondido, CA | 143,911 |
| Eucalyptus Hills, CA | 5,313 |
| Fairbanks Ranch, CA | 3,148 |
| Fallbrook, CA | 30,534 |
| Granite Hills, CA | 3,035 |
| Harbison Canyon, CA | 3,841 |
| Hidden Meadows, CA | 3,485 |
| Imperial Beach, CA | 26,324 |
| Jacumba, CA | 561 |
| Jamul, CA | 6,163 |
| Julian, CA | 1,502 |
| La Mesa, CA | 57,065 |
| La Presa, CA | 34,169 |
| Lake Riverside, CA | 1,173 |
| Lake San Marcos, CA | 4,437 |
| Lakeside, CA | 20,648 |
| Lemon Grove, CA | 25,320 |
| Mount Laguna, CA | 57 |
| National City, CA | 58,582 |
| Oceanside, CA | 167,086 |
| Ocotillo, CA | 266 |
| Pine Valley, CA | 1,510 |
| Potrero, CA | 656 |
| Poway, CA | 47,811 |
| Rainbow, CA | 1,832 |
| Ramona, CA | 20,292 |
| Rancho San Diego, CA | 21,208 |
| Rancho Santa Fe, CA | 3,117 |
| San Diego, CA | 1,307,402 |
| San Diego Country Estates, CA | 10,109 |
| San Diego County rural, CA | 161,717 |
| San Marcos, CA | 83,781 |
| Santee, CA | 53,413 |
| Solana Beach, CA | 12,867 |
| Spring Valley, CA | 28,205 |
| Valley Center, CA | 9,277 |
| Vista, CA | 93,834 |
| Winter Gardens, CA | 20,631 |
| | |
| Total | 3,094,451 |
