| ZIP Codes: | 181 ZIP Codes (96 Standard, 69 PO Box, 16 Unique) [See All] |
| Area Codes: | 442 / 619 / 760 / 858 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:59:01 AM |
| Population: | 3,285,573 [See All] |
| FIPS: | 06073 |
| CBSA: | San Diego-Chula Vista-Carlsbad, CA |
| Land Area: | 4,418 sq mi |
| Water Area: | 48 sq mi |
| Coordinates: | 32.8785, -117.0702 |
| Quick Link: |
3,285,573 residents live across 181 ZIPs covering 4,418 sq mi, served by 51 distinct USPS-recognized cities.
Population moved from 3,178,607 to 3,270,126 from 2014 to 2024 — a +2.9% change. 64 ZIPs gained residents, 42 lost (and 1 held flat).
The county's wealthiest ZIP 92130 (San Diego, $205,680 median) and poorest ZIP 91934 (Jacumba, $50,469) are 63.1 miles apart — a 4.1× income gap across local geography.
Median home values vary 6.1× across this county — from $327,600 in 91906 (Campo) to $2,000,001 in 92118 (Coronado).
Density varies 3494× across the county — from 5 people/sq mi in 92004 (Borrego Springs) to 17,578 in 92179 (San Diego).
Educational attainment ranges from 2.7% bachelor's+ in 92179 (San Diego) to 82.5% in 92014 (Del Mar) — the breadth of educational profiles across the area.
Within California, this is the #2 most populous of 58 counties and ranks #15 for median household income .
On the national stage, San Diego County is the #5 most populous US county .
Hosts 4 single-entity Unique ZIPs: 92145Nas Miramar ; 92158San Diego County Jail ; 92152Spawars System Center ; and 92136Naval Station 32Nd St .
Weighted by population, the typical household earns about $110,500 across the county — reflecting what a typical resident sees, not a simple ZIP average.
43.2% of adults age 25+ hold a bachelor's degree or higher (984,266 of 2,280,496 reporting).
96 Standard delivery, 69 PO Box only, 16 single-entity Unique ZIPs serve this county.
22 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
16 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 4.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 91911 | Chula Vista | Standard | 85,542 | $82,350 | 13.3 | 2.2% |
| 92154 | San Diego | Standard | 80,445 | $94,901 | 37.8 | -7.3% |
| 91910 | Chula Vista | Standard | 77,123 | $90,222 | 12.6 | 0.4% |
| 92126 | San Diego | Standard | 76,059 | $126,913 | 11.2 | -2.7% |
| 92105 | San Diego | Standard | 71,411 | $68,563 | 5.8 | 0.1% |
| 92021 | El Cajon | Standard | 70,501 | $74,013 | 28.6 | 5.5% |
| 92115 | San Diego | Standard | 66,264 | $79,199 | 6.4 | 7.4% |
| 92114 | San Diego | Standard | 65,745 | $97,794 | 8.3 | -5.1% |
| 91977 | Spring Valley | Standard | 61,064 | $99,657 | 11.3 | 2.7% |
| 92130 | San Diego | Standard | 60,768 | $205,680 | 18.1 | 20.9% |
| 91950 | National City | Standard | 59,891 | $66,426 | 7.2 | -2.2% |
| 92071 | Santee | Standard | 59,590 | $113,618 | 25.8 | 7.6% |
| 92020 | El Cajon | Standard | 57,842 | $76,032 | 11.5 | -0.8% |
| 91913 | Chula Vista | Standard | 57,721 | $129,337 | 9.1 | 32.2% |
| 92057 | Oceanside | Standard | 56,835 | $108,814 | 15.4 | 2.2% |
| 92027 | Escondido | Standard | 54,113 | $93,338 | 65.2 | -4.9% |
| 92056 | Oceanside | Standard | 53,616 | $106,272 | 12.3 | 1.6% |
| 92078 | San Marcos | Standard | 53,605 | $120,268 | 18.2 | 16.7% |
| 92026 | Escondido | Standard | 53,075 | $104,561 | 35.3 | 6.2% |
| 92129 | San Diego | Standard | 52,965 | $156,321 | 13.4 | -3.1% |
| 92117 | San Diego | Standard | 52,275 | $103,661 | 8.7 | -1.7% |
| 92028 | Fallbrook | Standard | 52,227 | $111,290 | 220.8 | 8.1% |
| 92101 | San Diego | Standard | 51,805 | $91,566 | 5.2 | 44.3% |
| 92024 | Encinitas | Standard | 50,617 | $158,507 | 18.4 | 2.8% |
| 92127 | San Diego | Standard | 50,555 | $195,520 | 23.6 | 20.7% |
| 92025 | Escondido | Standard | 49,989 | $81,106 | 21.9 | 0.5% |
| 92058 | Oceanside | Standard | 49,834 | $69,970 | 64.8 | 9.1% |
| 92084 | Vista | Standard | 49,727 | $98,577 | 26.6 | 3.0% |
| 92128 | San Diego | Standard | 48,992 | $131,077 | 10.9 | -0.6% |
| 92064 | Poway | Standard | 48,683 | $148,673 | 39.6 | -0.8% |
| 92113 | San Diego | Standard | 48,215 | $61,819 | 4.4 | -16.3% |
| 92104 | San Diego | Standard | 47,410 | $94,014 | 3.4 | 6.3% |
| 92069 | San Marcos | Standard | 47,335 | $96,771 | 19.4 | 0.4% |
| 92040 | Lakeside | Standard | 46,216 | $107,937 | 76.8 | 9.2% |
| 92122 | San Diego | Standard | 45,411 | $105,177 | 5.7 | 1.8% |
| 92019 | El Cajon | Standard | 45,351 | $101,973 | 30.2 | 2.2% |
| 92111 | San Diego | Standard | 45,249 | $99,644 | 12.1 | -4.9% |
| 92109 | San Diego | Standard | 44,820 | $122,128 | 7.8 | -1.1% |
| 92009 | Carlsbad | Standard | 44,739 | $164,182 | 12.1 | 2.5% |
| 91942 | La Mesa | Standard | 41,424 | $92,896 | 6.1 | 5.0% |
| 92037 | La Jolla | Standard | 40,717 | $147,230 | 12.1 | 3.8% |
| 92102 | San Diego | Standard | 38,901 | $77,248 | 4.9 | -13.3% |
| 92054 | Oceanside | Standard | 38,417 | $82,408 | 7.5 | -10.6% |
| 92083 | Vista | Standard | 38,375 | $86,974 | 5.5 | 4.8% |
| 92065 | Ramona | Standard | 36,752 | $125,285 | 183.5 | 2.0% |
| 92131 | San Diego | Standard | 35,503 | $185,256 | 20.7 | 4.8% |
| 91915 | Chula Vista | Standard | 35,322 | $139,503 | 8.3 | 29.4% |
| 92103 | San Diego | Standard | 34,836 | $102,626 | 3.7 | 9.1% |
| 92139 | San Diego | Standard | 34,703 | $95,653 | 3.6 | -7.3% |
| 91941 | La Mesa | Standard | 33,218 | $115,381 | 8.3 | -0.8% |
| 92123 | San Diego | Standard | 33,041 | $132,534 | 8.3 | 13.0% |
| 92120 | San Diego | Standard | 31,915 | $120,661 | 7.6 | 25.8% |
| 92116 | San Diego | Standard | 31,843 | $98,154 | 3.2 | -3.3% |
| 92110 | San Diego | Standard | 30,902 | $110,790 | 5.2 | 10.3% |
| 92124 | San Diego | Standard | 30,474 | $120,201 | 8.8 | 0.9% |
| 92081 | Vista | Standard | 29,002 | $105,379 | 8.9 | 0.6% |
| 92107 | San Diego | Standard | 28,827 | $113,117 | 3.1 | 7.0% |
| 92008 | Carlsbad | Standard | 27,955 | $104,995 | 10.8 | 5.6% |
| 91945 | Lemon Grove | Standard | 27,745 | $88,016 | 3.9 | 6.6% |
| 92173 | San Ysidro | Standard | 27,585 | $69,792 | 3.1 | -12.5% |
| 92108 | San Diego | Standard | 26,790 | $103,884 | 5.1 | 39.2% |
| 91932 | Imperial Beach | Standard | 25,741 | $85,833 | 4.8 | -2.0% |
| 92119 | San Diego | Standard | 24,456 | $113,435 | 7.7 | 2.2% |
| 92011 | Carlsbad | Standard | 23,190 | $159,235 | 7.2 | -2.9% |
| 92082 | Valley Center | Standard | 21,727 | $126,544 | 134.6 | 9.6% |
| 92106 | San Diego | Standard | 21,651 | $142,897 | 4.0 | 10.8% |
| 92029 | Escondido | Standard | 20,726 | $124,726 | 21.8 | 6.1% |
| 92118 | Coronado | Standard | 18,929 | $134,534 | 6.2 | -16.5% |
| 92010 | Carlsbad | Standard | 18,489 | $129,926 | 8.5 | 21.0% |
| 91901 | Alpine | Standard | 18,197 | $114,167 | 105.3 | 0.1% |
| 91902 | Bonita | Standard | 17,698 | $122,524 | 11.2 | -9.3% |
| 91914 | Chula Vista | Standard | 16,877 | $190,786 | 7.5 | -0.3% |
| 92014 | Del Mar | Standard | 13,105 | $198,823 | 7.0 | -3.1% |
| 92075 | Solana Beach | Standard | 11,944 | $149,327 | 3.8 | -4.0% |
| 92007 | Cardiff By The Sea | Standard | 11,100 | $182,629 | 2.6 | -5.8% |
| 92055 | Camp Pendleton | PO Box | 10,831 | — | 68.1 | -14.9% |
| 91978 | Spring Valley | Standard | 10,014 | $113,170 | 13.6 | 2.1% |
| 91935 | Jamul | Standard | 9,114 | $151,538 | 113.3 | 8.2% |
| 92067 | Rancho Santa Fe | PO Box | 7,938 | $187,054 | 20.7 | -12.0% |
| 92093 | La Jolla | Unique | 7,167 | — | 1.0 | — |
| 92003 | Bonsall | Standard | 5,061 | $113,216 | 16.3 | 17.5% |
| 92136 | San Diego | Unique | 4,573 | — | 1.1 | — |
| 92121 | San Diego | Standard | 3,974 | $135,938 | 12.3 | -17.8% |
| 91906 | Campo | Standard | 3,325 | $62,500 | 123.2 | -8.8% |
| 92036 | Julian | Standard | 3,218 | $73,750 | 633.2 | 8.1% |
| 92179 | San Diego | PO Box | 3,150 | — | 0.2 | — |
| 92004 | Borrego Springs | Standard | 3,007 | $74,018 | 597.6 | 14.6% |
| 91962 | Pine Valley | Standard | 2,574 | $143,094 | 107.1 | 49.5% |
| 92145 | San Diego | Unique | 2,349 | — | 20.7 | 19.4% |
| 92140 | San Diego | Unique | 2,038 | — | 0.6 | -21.4% |
| 91916 | Descanso | Standard | 1,710 | $103,438 | 85.2 | 8.2% |
| 91905 | Boulevard | Standard | 1,683 | $77,886 | 140.5 | 22.8% |
| 92061 | Pauma Valley | Standard | 1,543 | $92,813 | 37.8 | -15.4% |
| 92086 | Warner Springs | Standard | 1,406 | $57,431 | 239.2 | 5.3% |
| 92059 | Pala | Standard | 1,362 | $99,803 | 34.2 | -6.1% |
| 91934 | Jacumba | Standard | 1,200 | $50,469 | 95.2 | 309.6% |
| 92091 | Rancho Santa Fe | Standard | 972 | $103,452 | 2.2 | -32.2% |
| 92135 | San Diego | PO Box | 849 | — | 0.0 | -11.1% |
| 91917 | Dulzura | Standard | 749 | — | 71.0 | -16.4% |
| 91963 | Potrero | Standard | 689 | — | 43.5 | -33.9% |
| 92060 | Palomar Mountain | PO Box | 619 | $152,852 | 65.5 | 914.8% |
| 92070 | Santa Ysabel | Standard | 607 | $67,017 | 112.8 | -49.1% |
| 92092 | La Jolla | Unique | 528 | — | 0.1 | — |
| 91931 | Guatay | PO Box | 494 | $63,750 | 8.9 | 49.2% |
| 92134 | San Diego | Unique | 290 | — | 0.1 | 92.1% |
| 92066 | Ranchita | Standard | 290 | $35,625 | 59.1 | 6.2% |
| 91980 | Tecate | Standard | 176 | — | 12.7 | -72.1% |
| 92147 | San Diego | Unique | 148 | — | 0.2 | -73.7% |
| 92155 | San Diego | Unique | 101 | — | 0.6 | -85.9% |
| 91948 | Mount Laguna | PO Box | 93 | $55,066 | 16.2 | 97.9% |
| 92161 | San Diego | Unique | 29 | — | 0.0 | — |
| 92132 | San Diego | Unique | 0 | — | 0.1 | — |
| 92182 | San Diego | Unique | 0 | — | 0.0 | — |
| 92096 | San Marcos | Unique | 0 | — | 0.0 | — |
| 92085 | Vista | PO Box | — | — | 0.0 | — |
| 92068 | San Luis Rey | PO Box | — | — | 0.0 | — |
| 92018 | Carlsbad | PO Box | — | — | 0.0 | — |
| 92049 | Oceanside | PO Box | — | — | 0.0 | — |
| 92051 | Oceanside | PO Box | — | — | 0.0 | — |
| 92052 | Oceanside | PO Box | — | — | 0.0 | — |
| 92088 | Fallbrook | PO Box | — | — | 0.0 | — |
| 91944 | La Mesa | PO Box | — | — | 0.0 | — |
| 92176 | San Diego | PO Box | — | — | 0.0 | — |
| 92195 | San Diego | PO Box | — | — | 0.0 | — |
| 92175 | San Diego | PO Box | — | — | 0.0 | — |
| 92167 | San Diego | PO Box | — | — | 0.0 | — |
| 92186 | San Diego | PO Box | — | — | 0.0 | — |
| 91976 | Spring Valley | PO Box | — | — | 0.0 | — |
| 92138 | San Diego | PO Box | — | — | 0.0 | — |
| 92137 | San Diego | PO Box | — | — | 0.0 | — |
| 92165 | San Diego | PO Box | — | — | 0.0 | — |
| 92163 | San Diego | PO Box | — | — | 0.0 | — |
| 92112 | San Diego | PO Box | — | — | 0.0 | — |
| 92187 | San Diego | Unique | — | — | 0.0 | — |
| 92166 | San Diego | PO Box | — | — | 0.0 | — |
| 91979 | Spring Valley | PO Box | — | — | 0.0 | — |
| 91946 | Lemon Grove | PO Box | — | — | 0.0 | — |
| 91921 | Chula Vista | PO Box | — | — | 0.0 | — |
| 91912 | Chula Vista | PO Box | — | — | 0.0 | — |
| 91909 | Chula Vista | PO Box | — | — | 0.0 | — |
| 92158 | San Diego | Unique | — | — | 19.1 | — |
| 91933 | Imperial Beach | PO Box | — | — | 0.0 | — |
| 92143 | San Ysidro | PO Box | — | — | 0.0 | — |
| 92153 | San Diego | PO Box | — | — | 0.0 | — |
| 91987 | Tecate | Unique | — | — | 0.0 | — |
| 91908 | Bonita | PO Box | — | — | 0.0 | — |
| 91951 | National City | PO Box | — | — | 0.0 | — |
| 92149 | San Diego | PO Box | — | — | 0.0 | — |
| 92178 | Coronado | PO Box | — | — | 0.0 | — |
| 92152 | San Diego | Unique | — | — | 1.6 | — |
| 92174 | San Diego | PO Box | — | — | 0.0 | — |
| 92170 | San Diego | PO Box | — | — | 0.0 | — |
| 92072 | Santee | PO Box | — | — | 0.0 | — |
| 92142 | San Diego | PO Box | — | — | 0.0 | — |
| 92177 | San Diego | PO Box | — | — | 0.0 | — |
| 91903 | Alpine | PO Box | — | — | 0.0 | — |
| 92038 | La Jolla | PO Box | — | — | 0.0 | — |
| 92039 | La Jolla | PO Box | — | — | 0.0 | — |
| 92192 | San Diego | PO Box | — | — | 0.0 | — |
| 92171 | San Diego | PO Box | — | — | 0.0 | — |
| 92168 | San Diego | PO Box | — | — | 0.0 | — |
| 92022 | El Cajon | PO Box | — | — | 0.0 | — |
| 91943 | La Mesa | PO Box | — | — | 0.0 | — |
| 92160 | San Diego | PO Box | — | — | 0.0 | — |
| 92169 | San Diego | PO Box | — | — | 0.0 | — |
| 92159 | San Diego | PO Box | — | — | 0.0 | — |
| 92193 | San Diego | PO Box | — | — | 0.0 | — |
| 92023 | Encinitas | PO Box | — | — | 0.0 | — |
| 92198 | San Diego | PO Box | — | — | 0.0 | — |
| 92013 | Carlsbad | PO Box | — | — | 0.0 | — |
| 92033 | Escondido | PO Box | — | — | 0.0 | — |
| 92046 | Escondido | PO Box | — | — | 0.0 | — |
| 92030 | Escondido | PO Box | — | — | 0.0 | — |
| 92079 | San Marcos | PO Box | — | — | 0.0 | — |
| 92191 | San Diego | PO Box | — | — | 0.0 | — |
| 92172 | San Diego | PO Box | — | — | 0.0 | — |
| 92074 | Poway | PO Box | — | — | 0.0 | — |
| 92196 | San Diego | PO Box | — | — | 0.0 | — |
| 92197 | San Diego | PO Box | — | — | 0.0 | — |
| 92150 | San Diego | PO Box | — | — | 0.0 | — |
| 92199 | San Diego | Standard | — | — | 0.0 | — |