Petrolia ZIP code, California
The ZIP code for Petrolia, CA is 95558, and its area code is 707.
- USPS city name
- 1 ZIP code
- Population
- 230
- Area code
- 707
- County
- Humboldt County
- State
- California
Petrolia in numbers
About 230 people live in Petrolia, in 125 households. The median household income is $51,719 a year, 48% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $566,200 (23% below the California median).
| Population | 230 |
|---|---|
| Households | 125 |
| Median household income | $51,719 |
| Median home value | $566,200 |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Petrolia. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Petrolia
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
95558 | Petrolia , CA | Standard | 230 | $51,719 | $566,200 |
Map of Petrolia ZIP codes
The ZIP codes of Petrolia, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Petrolia
The nearest larger towns are Scotia (405 people, 13 mi), Rio Dell (3,349 people, 13 mi) and Ferndale (1,552 people, 17 mi).
| Town | Population | Distance |
|---|---|---|
| Rio Dell | 3,349 | 13.3 mi |
| Fortuna | 12,326 | 18.3 mi |
| Humboldt Hill | 3,551 | 26.8 mi |
| Pine Hills | 2,875 | 27.8 mi |
| Bayview | 2,803 | 29.9 mi |
More nearby: every ZIP code in Humboldt County · California ZIP codes
Cite this page
zipcodes.pro. “Petrolia, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/petrolia
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