Residential delivery area · California
ZIP Code 94121: San Francisco, CA
ZIP code 94121 is in San Francisco, California, entirely in San Francisco County (Census 2020 ZIP-county file). About 42,000 people live there (Census Bureau, ACS 2020-2024), the 6th most populous of San Francisco's 29 residential ZIP codes. Median household income is $133,358 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- San Francisco · 29 residential ZIPs
- County
- San Francisco County
- Census places
- San Francisco
- Neighborhood
- Seacliff GeoNames
- Metro area
- San Francisco-Oakland-Fremont, CA
- House district
- CA-11 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 2.5 sq mi · 16,566 people per sq mi
- PO Box ZIPs
- 22 more ZIP codes use the name San Francisco for PO boxes or single organizations
Where is ZIP code 94121?
94121 centers on 37.779°, -122.496° and covers 2.5 square miles of land plus 0.0 of water. It borders 3 ZIP codes: 94122, 94118, 94129.
The map draws ZIP code areas only. For the streets inside 94121, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 94121 compare with the rest of San Francisco?
| Measure | 94121 | In San Francisco | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 41,995 | 6th of 29 | 348th of 1,802 |
| Median household income | $133k | 15th of 23 | 254th of 1,189 |
| Median home value | $1.61M | 7th of 24 | 119th of 1,317 |
Its median household income is higher than in 94% of U.S. residential ZIP codes, and it is denser than 99% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 94121?
The 2020 Census counted 43,115 people in 94121; the ACS, which samples households over 2020-2024, estimates 41,995. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 41,995
- 2020 Census count
- 43,115
- Households
- 18,206
- Median age
- 44.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 94121?
Of the 41,995 people the ACS estimates in 94121, 15.3% are under 18 and 22.1% are 65 or older. The largest group by race and Hispanic origin is Asian (not Hispanic) (40.9%), then White (not Hispanic) (39.6%).
- Under 1815.3%
- 18 to 6462.7%
- 65 and older22.1%
- Asian, not Hispanic40.9%
- White, not Hispanic39.6%
- Hispanic or Latino10.4%
- Other or two or more7.5%
- Black, not Hispanic1.6%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 94121 earn?
Median household income is $133,358 (ACS 2020-2024), the 15th highest of the 23 ranked ZIP codes in San Francisco.
- Median household income
- $133,358
- Income per person
- $88,205
- Below the poverty line
- 8.6%
- Unemployed (of the labor force)
- 6.1%
- Adults 25+ with a bachelor's degree
- 64.6%
- Adjusted gross income per tax return, 2022
- $197,31121,020 returns; wages 60% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 94121?
FHFA's house price index for 94121, built from repeat sales and appraisals of the same homes, rose 24% from 2015 to 2025 and rose 24% from 2020 to 2025, and moved +18.0% in 2025.
- Median home value (owners' estimate)
- $1,611,400
- Median gross rent
- $2,363
- Homes owned by their occupants
- 43.9%
- Housing units
- 19,777
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 94121?
826 business establishments had a location in this ZIP code in 2023, 41 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services152
- Accommodation and food services119
- Health care and social assistance103
- Construction98
- Retail trade71
- Other services (except public administration)63
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 94121?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94122 | San Francisco | 55,819 | $146k | 1.4 mi |
| 94118 | San Francisco | 39,130 | $164k | 1.9 mi |
| 94129 | San Francisco | 3,836 | $221k | 2.2 mi |
| 94116 | San Francisco | 43,791 | $159k | 2.4 mi (near) |
| 94117 | San Francisco | 36,198 | $167k | 2.9 mi (near) |
| 94115 | San Francisco | 32,629 | $152k | 3.2 mi (near) |
| 94114 | San Francisco | 33,020 | $204k | 3.6 mi (near) |
| 94127 | San Francisco | 20,288 | $214k | 3.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.