| ZIP Codes: | 50 ZIP Codes (30 Standard, 11 PO Box, 9 Unique) [See All] |
| Area Codes: | 341 / 415 / 510 / 628 / 650 |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 2:11:30 PM |
| Population: | 830,479 [See All] |
| FIPS: | 06075 |
| CBSA: | San Francisco-Oakland-Fremont, CA |
| Land Area: | 47 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 37.7645, -122.4176 |
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830,479 residents live across 50 ZIPs covering 47 sq mi, served by 1 distinct USPS-recognized cities.
Population moved from 829,047 to 830,479 from 2014 to 2024 — a +0.2% change. 11 ZIPs gained residents, 16 lost.
The county's wealthiest ZIP 94105 (San Francisco, $225,000 median) and poorest ZIP 94102 (San Francisco, $60,431) are 1.5 miles apart — a 3.7× income gap across local geography.
Median home values vary 2.1× across this county — from $935,900 in 94102 (San Francisco) to $2,000,001 in 94123 (San Francisco).
Density varies 33× across the county — from 1,621 people/sq mi in 94129 (San Francisco) to 52,728 in 94102 (San Francisco).
Most of the decade's growth concentrated around San Francisco — top growth ZIPs averaged +90.1% over the past ten years ( 94105 , 94158 and 94103 ).
Educational attainment ranges from 25.8% bachelor's+ in 94124 (San Francisco) to 84.6% in 94129 (San Francisco) — the breadth of educational profiles across the area.
Within California, this is the #13 most populous of 58 counties and ranks #4 for median household income .
On the national stage, San Francisco County is the #76 most populous US county , ranks #23 for income .
Hosts 4 single-entity Unique ZIPs: 94163Wells Fargo Bank ; 94161Bank Of America ; 94151Irs Service Center ; and 94160Bank Of America .
Weighted by population, the typical household earns about $144,153 across the county — reflecting what a typical resident sees, not a simple ZIP average.
60.3% of adults age 25+ hold a bachelor's degree or higher (399,321 of 661,924 reporting). The most-educated ZIPs cluster around San Francisco.
30 Standard delivery, 11 PO Box only, 9 single-entity Unique ZIPs serve this county.
16 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
9 ZIP codes in this county serve a single facility — typically theme parks, universities, large corporations, airports, or government complexes.
Median household income spans 3.7× 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 |
|---|---|---|---|---|---|---|
| 94112 | San Francisco | Standard | 79,277 | $135,119 | 3.4 | -4.5% |
| 94110 | San Francisco | Standard | 66,865 | $158,351 | 2.4 | -6.4% |
| 94122 | San Francisco | Standard | 55,819 | $146,250 | 3.2 | -4.7% |
| 94109 | San Francisco | Standard | 54,553 | $106,018 | 1.0 | -0.4% |
| 94116 | San Francisco | Standard | 43,791 | $158,921 | 2.6 | -3.9% |
| 94121 | San Francisco | Standard | 41,995 | $133,358 | 2.8 | -0.1% |
| 94118 | San Francisco | Standard | 39,130 | $163,995 | 2.0 | -2.4% |
| 94134 | San Francisco | Standard | 38,633 | $119,567 | 2.5 | -4.2% |
| 94117 | San Francisco | Standard | 36,198 | $167,066 | 1.3 | -15.1% |
| 94102 | San Francisco | Standard | 35,976 | $60,431 | 0.7 | 28.4% |
| 94103 | San Francisco | Standard | 34,964 | $116,438 | 1.4 | 45.0% |
| 94124 | San Francisco | Standard | 34,475 | $80,509 | 4.5 | -2.1% |
| 94114 | San Francisco | Standard | 33,020 | $204,134 | 1.4 | 2.5% |
| 94115 | San Francisco | Standard | 32,629 | $151,524 | 1.1 | -5.6% |
| 94107 | San Francisco | Standard | 31,823 | $182,897 | 2.0 | 14.5% |
| 94131 | San Francisco | Standard | 28,504 | $199,211 | 2.0 | 0.5% |
| 94132 | San Francisco | Standard | 26,859 | $112,292 | 4.0 | -15.9% |
| 94123 | San Francisco | Standard | 24,054 | $218,603 | 1.1 | -5.8% |
| 94133 | San Francisco | Standard | 23,804 | $87,191 | 0.8 | -13.9% |
| 94127 | San Francisco | Standard | 20,288 | $214,167 | 1.9 | 4.8% |
| 94105 | San Francisco | Standard | 13,861 | $225,000 | 0.4 | 120.6% |
| 94158 | San Francisco | Standard | 11,314 | $196,506 | 0.5 | 104.6% |
| 94108 | San Francisco | Standard | 11,305 | $65,388 | 0.2 | -18.8% |
| 94111 | San Francisco | Standard | 4,579 | $152,697 | 0.4 | 31.7% |
| 94129 | San Francisco | Standard | 3,836 | $220,972 | 2.4 | 15.1% |
| 94130 | San Francisco | Standard | 2,429 | $93,269 | 0.9 | -21.2% |
| 94104 | San Francisco | Standard | 498 | — | 0.1 | 123.3% |
| 94188 | San Francisco | Standard | 0 | — | 0.1 | — |
| 94163 | San Francisco | Unique | — | — | 0.0 | — |
| 94161 | San Francisco | Unique | — | — | 0.0 | — |
| 94151 | San Francisco | Unique | — | — | 0.0 | — |
| 94160 | San Francisco | Unique | — | — | 0.0 | — |
| 94177 | San Francisco | Unique | — | — | 0.0 | — |
| 94120 | San Francisco | PO Box | — | — | 0.0 | — |
| 94139 | San Francisco | Unique | — | — | 0.0 | — |
| 94144 | San Francisco | Unique | — | — | 0.0 | — |
| 94137 | San Francisco | Unique | — | — | 0.0 | — |
| 94145 | San Francisco | Unique | — | — | 0.0 | — |
| 94172 | San Francisco | PO Box | — | — | 0.0 | — |
| 94146 | San Francisco | PO Box | — | — | 0.0 | — |
| 94140 | San Francisco | PO Box | — | — | 0.0 | — |
| 94119 | San Francisco | PO Box | — | — | 0.0 | — |
| 94125 | San Francisco | PO Box | — | — | 0.0 | — |
| 94164 | San Francisco | PO Box | — | — | 0.0 | — |
| 94143 | San Francisco | Standard | — | — | 0.1 | — |
| 94141 | San Francisco | Standard | — | — | 0.0 | — |
| 94159 | San Francisco | PO Box | — | — | 0.0 | — |
| 94142 | San Francisco | PO Box | — | — | 0.0 | — |
| 94147 | San Francisco | PO Box | — | — | 0.0 | — |
| 94126 | San Francisco | PO Box | — | — | 0.0 | — |