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USPS city
San Quentin, CA ZIP codes
2 ZIP codes that list San Quentin as a USPS primary or acceptable city. Not a Census place.
Sum of ZCTA populations for ZIP codes intersecting San Quentin. Not a Census place total. Methodology
Combined population of ZIP/ZCTAs that list this USPS city as a primary or acceptable name. This is a labeled ZIP-sum, never a Census place ACS population. Methodology
Map of San Quentin, CA

ZIP codes associated with San Quentin
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 94964 | San Quentin | Marin County | 2,115 | — |
| 94974 | San Quentin | Marin County | 17 | — |