Postal reference / United States
94121San Francisco, California
ZIP code 94121 is a United States postal code for San Francisco, California. Its county association is City and County of San Francisco County. The map reference point is at 37.7786, -122.4892.
- State / territory
- California
- Recorded place name
- San Francisco
- County association
- City and County of San Francisco
- Estimated coordinate
- 37.7786, -122.4892
View on OpenStreetMap - ZIP prefix
- 941 · 51 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 2.535 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
Need the last four digits?
ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.
Find ZIP+4Explore California
Browse the other 2,592 ZIP codes recorded for California, sorted by code with place and county.
California directoryOther ZIP codes in San Francisco, CA
San Francisco has 51 ZIP codes in the reference dataset. The 11 not listed here are in the San Francisco directory.
- 94102City and County of San Francisco
- 94103City and County of San Francisco
- 94104City and County of San Francisco
- 94105City and County of San Francisco
- 94107City and County of San Francisco
- 94108City and County of San Francisco
- 94109City and County of San Francisco
- 94110City and County of San Francisco
- 94111City and County of San Francisco
- 94112City and County of San Francisco
- 94114City and County of San Francisco
- 94115City and County of San Francisco
- 94116City and County of San Francisco
- 94117City and County of San Francisco
- 94118City and County of San Francisco
- 94119City and County of San Francisco
- 94120City and County of San Francisco
- 94122City and County of San Francisco
- 94123City and County of San Francisco
- 94124City and County of San Francisco
- 94125City and County of San Francisco
- 94126City and County of San Francisco
- 94127City and County of San Francisco
- 94128San Mateo
- 94129City and County of San Francisco
- 94130City and County of San Francisco
- 94131City and County of San Francisco
- 94132City and County of San Francisco
- 94133City and County of San Francisco
- 94134City and County of San Francisco
- 94137City and County of San Francisco
- 94139City and County of San Francisco
- 94140City and County of San Francisco
- 94141City and County of San Francisco
- 94142City and County of San Francisco
- 94143City and County of San Francisco
- 94144City and County of San Francisco
- 94145City and County of San Francisco
- 94146City and County of San Francisco
- 94147City and County of San Francisco
Nearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 94122 | San Francisco | CA | City and County of San Francisco | 1.4 |
| 94118 | San Francisco | CA | City and County of San Francisco | 1.5 |
| 94143 | San Francisco | CA | City and County of San Francisco | 2.0 |
| 94129 | San Francisco | CA | City and County of San Francisco | 2.0 |
| 94116 | San Francisco | CA | City and County of San Francisco | 2.4 |
| 94117 | San Francisco | CA | City and County of San Francisco | 2.7 |
| 94115 | San Francisco | CA | City and County of San Francisco | 3.0 |
| 94123 | San Francisco | CA | City and County of San Francisco | 3.3 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
Verify a mailing address
For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.
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