Founded in 1850, San Diego County is one of 58 counties in the state of California. The city of San Diego is the county seat. With FIPS code of 73, San Diego County has a population of 3,286,069 and area of 4,204 square miles (10,888 km2).
List of all cities in San Diego County, CA alphabetically
| City/Town | Postal Code | Area Code |
| Alpine, CA | 91901 | 619 |
| 91903 | 619 | |
| ASW Training Center, CA | 92147 | 619 |
| Bonita, CA | 91902 | 619 |
| 91908 | 619 | |
| Bonsall, CA | 92003 | 760 |
| Borrego Springs, CA | 92004 | 760 |
| Bostonia, CA | 92021 | 619 |
| Boulevard, CA | 91905 | 619 |
| California State San Marcos, CA | 92096 | 760 |
| Camp Pendleton, CA | 92054 | 760 |
| 92055 | 760 | |
| Campo, CA | 91906 | 619 |
| 91987 | 619 | |
| Cardiff, CA | 92007 | 760 |
| Cardiff by the Sea, CA | 92007 | 760 |
| Carlsbad, CA | 92008 | 760 |
| 92009 | 760 | |
| 92010 | 760 | |
| 92011 | 760 | |
| 92013 | 760 | |
| 92018 | 760 | |
| Chula Vista, CA | 91909 | 619 |
| 91910 | 619 | |
| 91911 | 619 | |
| 91912 | 619 | |
| 91913 | 619 | |
| 91914 | 619 | |
| 91915 | 619 | |
| 91921 | 619 | |
| Cmp Pendleton, CA | 92054 | 760 |
| 92055 | 760 | |
| Coronado, CA | 92118 | 619 |
| 92178 | 619 | |
| Crest, CA | 92021 | 619 |
| Del Mar, CA | 92014 | 858 |
| Descanso, CA | 91916 | 619 |
| Dulzura, CA | 91917 | 619 |
| El Cajon, CA | 92019 | 619 |
| 92020 | 619 | |
| 92021 | 619 | |
| 92022 | 760 | |
| 92090 | 619 | |
| Encinitas, CA | 92023 | 760 |
| Encinitas, CA | 92024 | 760 |
| Escondido, CA | 92025 | 760 |
| 92026 | 760 | |
| 92027 | 760 | |
| 92029 | 760 | |
| 92030 | 760 | |
| 92033 | 760 | |
| 92046 | 760 | |
| Fallbrook, CA | 92028 | 760 |
| 92088 | 760 | |
| Guatay, CA | 91931 | 619 |
| Imperial Beach, CA | 91932 | 619 |
| 91933 | 619 | |
| Jacumba, CA | 91934 | 619 |
| Jamul, CA | 91935 | 619 |
| Julian, CA | 92036 | 760 |
| La Jolla, CA | 92037 | 858 |
| 92038 | 858 | |
| 92039 | 858 | |
| 92092 | 858 | |
| 92093 | 858 | |
| La Mesa, CA | 91941 | 619 |
| 91942 | 619 | |
| 91943 | 619 | |
| 91944 | 619 | |
| Lake San Marcos, CA | 92069 | 760 |
| Lakeside, CA | 92040 | 619 |
| Lemon Grove, CA | 91945 | 619 |
| 91946 | 619 | |
| Leucadia, CA | 92024 | 760 |
| Lincoln Acres, CA | 91947 | 619 |
| Marine Corp Base, CA | 92055 | 760 |
| Mount Laguna, CA | 91948 | 619 |
| Nas Miramar, CA | 92145 | 858 |
| National City, CA | 91950 | 619 |
| 91951 | 619 | |
| Naval Amphibious Base, CA | 92155 | 619 |
| Naval Hospital, CA | 92134 | 619 |
| Naval Station 32nd St, CA | 92136 | 619 |
| Naval Supply Center, CA | 92132 | 619 |
| Nestor, CA | 92153 | 619 |
| Ocean Beach, CA | 92107 | 619 |
| Oceanside, CA | 92049 | 760 |
| 92051 | 760 | |
| 92052 | 760 | |
| 92054 | 760 | |
| 92055 | 760 | |
| 92056 | 760 | |
| 92057 | 760 | |
| 92058 | 760 | |
| Olivenhain, CA | 92024 | 760 |
| Pacific Beach, CA | 92109 | 858 |
| Pala, CA | 92059 | 760 |
| Pala, CA | 92061 | 760 |
| Palomar Mountain, CA | 92060 | 760 |
| Pauma Valley, CA | 92061 | 760 |
| Pine Valley, CA | 91962 | 619 |
| Potrero, CA | 91963 | 619 |
| Poway, CA | 92064 | 858 |
| Poway, CA | 92074 | 858 |
| Rainbow, CA | 92028 | 760 |
| Ramona, CA | 92065 | 760 |
| Ranchita, CA | 92066 | 760 |
| Rancho Bernardo, CA | 92128 | 858 |
| Rancho Santa Fe, CA | 92067 | 760 |
| 92091 | 760 | |
| San Diego, CA | 92101 | 619 |
| 92102 | 619 | |
| 92103 | 619 | |
| 92104 | 619 | |
| 92105 | 619 | |
| 92106 | 619 | |
| 92107 | 619 | |
| 92108 | 619 | |
| 92109 | 858 | |
| 92110 | 858 | |
| 92111 | 858 | |
| 92112 | 619 | |
| 92113 | 619 | |
| 92114 | 858 | |
| 92115 | 858 | |
| 92116 | 619 | |
| 92117 | 858 | |
| 92118 | 619 | |
| 92119 | 858 | |
| 92120 | 858 | |
| 92121 | 858 | |
| 92122 | 858 | |
| 92123 | 858 | |
| 92124 | 858 | |
| 92126 | 858 | |
| 92127 | 858 | |
| 92128 | 858 | |
| 92129 | 858 | |
| 92130 | 858 | |
| 92131 | 858 | |
| 92132 | 619 | |
| 92134 | 619 | |
| 92135 | 619 | |
| 92136 | 619 | |
| 92137 | 619 | |
| 92138 | 619 | |
| 92139 | 619 | |
| 92140 | 619 | |
| 92142 | 619 | |
| 92143 | 619 | |
| 92145 | 858 | |
| 92147 | 619 | |
| 92149 | 619 | |
| 92150 | 619 | |
| 92152 | 619 | |
| 92153 | 619 | |
| 92154 | 619 | |
| 92155 | 619 | |
| 92158 | 619 | |
| 92159 | 619 | |
| 92160 | 619 | |
| 92161 | 619 | |
| 92162 | 619 | |
| 92163 | 619 | |
| 92164 | 619 | |
| 92165 | 619 | |
| 92166 | 619 | |
| 92167 | 619 | |
| 92168 | 619 | |
| 92169 | 619 | |
| 92170 | 619 | |
| 92171 | 619 | |
| 92172 | 619 | |
| 92173 | 619 | |
| 92174 | 619 | |
| 92175 | 619 | |
| 92176 | 619 | |
| 92177 | 619 | |
| 92178 | 619 | |
| 92179 | 619 | |
| 92182 | 619 | |
| 92184 | 619 | |
| 92186 | 619 | |
| 92187 | 619 | |
| 92190 | 619 | |
| 92191 | 619 | |
| 92192 | 619 | |
| 92193 | 619 | |
| 92194 | 619 | |
| 92195 | 619 | |
| 92196 | 619 | |
| 92197 | 619 | |
| 92198 | 619 | |
| 92199 | 619 | |
| San Diego County Jail, CA | 92158 | 619 |
| San Diego Gas and Electric, CA | 92184 | 619 |
| San Diego State University, CA | 92182 | 619 |
| San Diego Water Utilities, CA | 92187 | 619 |
| San Luis Rey, CA | 92068 | 760 |
| San Marcos, CA | 92069 | 760 |
| 92078 | 760 | |
| 92079 | 760 | |
| 92096 | 760 | |
| San Ysidro, CA | 92143 | 619 |
| 92173 | 619 | |
| Santa Ysabel, CA | 92070 | 760 |
| Santee, CA | 92071 | 619 |
| 92072 | 619 | |
| Solana Beach, CA | 92075 | 858 |
| Spawars System Center, CA | 92152 | 619 |
| Spring Valley, CA | 91976 | 619 |
| 91977 | 619 | |
| 91978 | 619 | |
| 91979 | 619 | |
| T K Manufacturing, CA | 91987 | 619 |
| Tecate, CA | 91980 | 619 |
| Tecate, CA | 91987 | 619 |
| Travel Lodge, CA | 92090 | 619 |
| UCSB, CA | 92092 | 858 |
| 92093 | 858 | |
| 92092 | 858 | |
| 92093 | 858 | |
| V A Hospital, CA | 92161 | 619 |
| Valley Center, CA | 92082 | 760 |
| Vista, CA | 92081 | 760 |
| 92083 | 760 | |
| 92084 | 760 | |
| 92085 | 760 | |
| Warner Springs, CA | 92066 | 760 |
| 92086 | 760 |
Map of Cities in San Diego County, CA
