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USPS city
Petrolia, CA ZIP codes
1 ZIP code that list Petrolia as a USPS primary or acceptable city. Not a Census place.
Sum of ZCTA populations for ZIP codes intersecting Petrolia. 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 Petrolia, CA

ZIP codes associated with Petrolia
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 95558 | Petrolia | Humboldt County | 244 | $51,250 |