Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | San Diego (city), CA | 1,386,932 |
| 2 | Oceanside (city), CA | 174,068 |
| 3 | Escondido (city), CA | 151,038 |
| 4 | Carlsbad (city), CA | 114,746 |
| 5 | Temecula (city), CA | 110,003 |
| 6 | Vista (city), CA | 98,381 |
| 7 | San Marcos (city), CA | 94,833 |
| 8 | Encinitas (city), CA | 62,007 |
| 9 | Poway (city), CA | 48,841 |
| 10 | Fallbrook (CDP), CA | 32,267 |
| 11 | Ramona (CDP), CA | 21,468 |
| 12 | Solana Beach (city), CA | 12,941 |
| 13 | Camp Pendleton South (CDP), CA | 12,468 |
| 14 | Valley Center (CDP), CA | 10,087 |
| 15 | Lake San Marcos (CDP), CA | 5,328 |
| 16 | Bonsall (CDP), CA | 4,546 |
| 17 | Hidden Meadows (CDP), CA | 4,484 |
| 18 | Del Mar (city), CA | 3,954 |
| 19 | Rancho Santa Fe (CDP), CA | 3,156 |
| 20 | Fairbanks Ranch (CDP), CA | 3,002 |
Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | San Diego (city), CA | 1,386,932 |
| 2 | Oceanside (city), CA | 174,068 |
| 3 | Escondido (city), CA | 151,038 |
| 4 | Carlsbad (city), CA | 114,746 |
| 5 | Temecula (city), CA | 110,003 |
| 6 | Vista (city), CA | 98,381 |
| 7 | San Marcos (city), CA | 94,833 |
| 8 | Encinitas (city), CA | 62,007 |
| 9 | Poway (city), CA | 48,841 |
| 10 | Fallbrook (CDP), CA | 32,267 |
| 11 | Ramona (CDP), CA | 21,468 |
| 12 | Solana Beach (city), CA | 12,941 |
| 13 | Camp Pendleton South (CDP), CA | 12,468 |
| 14 | Valley Center (CDP), CA | 10,087 |
| 15 | Lake San Marcos (CDP), CA | 5,328 |
| 16 | Bonsall (CDP), CA | 4,546 |
| 17 | Hidden Meadows (CDP), CA | 4,484 |
| 18 | Del Mar (city), CA | 3,954 |
| 19 | Rancho Santa Fe (CDP), CA | 3,156 |
| 20 | Fairbanks Ranch (CDP), CA | 3,002 |