115 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 91911 | Chula Vista | 87,799 |
| 92154 | San Diego | 83,758 |
| 92126 | San Diego | 78,111 |
| 91910 | Chula Vista | 76,313 |
| 92105 | San Diego | 72,688 |
| 92021 | El Cajon | 69,638 |
| 92114 | San Diego | 66,487 |
| 91977 | Spring Valley | 65,497 |
| 92115 | San Diego | 61,456 |
| 92071 | Santee | 59,795 |
| 92020 | El Cajon | 59,775 |
| 92057 | Oceanside | 58,022 |
| 91950 | National City | 57,844 |
| 92130 | San Diego | 57,363 |
| 91913 | Chula Vista | 56,102 |
| 92027 | Escondido | 55,750 |
| 92117 | San Diego | 54,499 |
| 92056 | Oceanside | 54,190 |
| 92026 | Escondido | 53,053 |
| 92078 | San Marcos | 53,019 |
| 92129 | San Diego | 52,495 |
| 92028 | Fallbrook | 51,135 |
| 92127 | San Diego | 51,107 |
| 92113 | San Diego | 50,983 |
| 92025 | Escondido | 50,270 |
| 92024 | Encinitas | 50,222 |
| 92084 | Vista | 49,971 |
| 92128 | San Diego | 49,273 |
| 92064 | Poway | 48,783 |
| 92058 | Oceanside | 48,272 |
| 92111 | San Diego | 47,710 |
| 92069 | San Marcos | 46,648 |
| 92104 | San Diego | 46,613 |
| 92009 | Carlsbad | 46,334 |
| 92101 | San Diego | 46,025 |
| 92122 | San Diego | 45,988 |
| 92019 | El Cajon | 45,937 |
| 92040 | Lakeside | 45,906 |
| 92109 | San Diego | 44,009 |
| 91942 | La Mesa | 40,995 |
| 92102 | San Diego | 40,051 |
| 92672 | San Clemente | 38,020 |
| 92083 | Vista | 37,864 |
| 92037 | La Jolla | 37,665 |
| 92054 | Oceanside | 37,050 |
| 92065 | Ramona | 36,836 |
| 91915 | Chula Vista | 35,608 |
| 92131 | San Diego | 35,227 |
| 92139 | San Diego | 34,930 |
| 92103 | San Diego | 34,296 |
| 91941 | La Mesa | 33,602 |
| 92123 | San Diego | 32,951 |
| 92116 | San Diego | 31,836 |
| 92124 | San Diego | 31,121 |
| 92110 | San Diego | 30,773 |
| 92120 | San Diego | 30,241 |
| 92081 | Vista | 29,475 |
| 92107 | San Diego | 29,435 |
| 92173 | San Ysidro | 28,609 |
| 91945 | Lemon Grove | 27,541 |
| 92008 | Carlsbad | 27,373 |
| 91932 | Imperial Beach | 26,157 |
| 92011 | Carlsbad | 24,472 |
| 92119 | San Diego | 24,419 |
| 92108 | San Diego | 24,201 |
| 92082 | Valley Center | 20,678 |
| 92106 | San Diego | 20,483 |
| 92029 | Escondido | 19,986 |
| 91901 | Alpine | 18,669 |
| 92118 | Coronado | 17,602 |
| 91914 | Chula Vista | 17,373 |
| 91902 | Bonita | 17,121 |
| 92010 | Carlsbad | 16,566 |
| 92014 | Del Mar | 12,532 |
| 92075 | Solana Beach | 12,072 |
| 92007 | Cardiff By The Sea | 11,939 |
| 91978 | Spring Valley | 11,006 |
| 92055 | Camp Pendleton | 10,618 |
| 92136 | San Diego | 9,630 |
| 91935 | Jamul | 9,320 |
| 92067 | Rancho Santa Fe | 9,186 |
| 92003 | Bonsall | 4,404 |
| 91906 | Campo | 4,281 |
| 92121 | San Diego | 4,150 |
| 92004 | Borrego Springs | 3,200 |
| 92036 | Julian | 3,075 |
| 92179 | San Diego | 3,031 |
| 92145 | San Diego | 2,810 |
| 92140 | San Diego | 2,807 |
| 91962 | Pine Valley | 2,528 |
| 92093 | La Jolla | 2,044 |
| 91916 | Descanso | 1,833 |
| 92061 | Pauma Valley | 1,677 |
| 92059 | Pala | 1,456 |
| 91905 | Boulevard | 1,411 |
| 92086 | Warner Springs | 1,409 |
| 92091 | Rancho Santa Fe | 1,288 |
| 91934 | Jacumba | 1,251 |
| 92135 | San Diego | 1,095 |
| 91917 | Dulzura | 851 |
| 92070 | Santa Ysabel | 761 |
| 91931 | Guatay | 749 |
| 91963 | Potrero | 624 |
| 92092 | La Jolla | 521 |
| 92060 | Palomar Mountain | 506 |
| 92066 | Ranchita | 319 |
| 92134 | San Diego | 241 |
| 92155 | San Diego | 196 |
| 92147 | San Diego | 180 |
| 91948 | Mount Laguna | 104 |
| 91980 | Tecate | 103 |
| 92161 | San Diego | 12 |
| 92096 | San Marcos | 0 |
| 92132 | San Diego | 0 |
| 92182 | San Diego | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 115 ZCTAs in San Diego County, California (US Census).