Home > CA > Humboldt County > Petrolia > Zip 95558

Zip Code 95558 — Petrolia, CA

95558 is a ZIP Code associated with Petrolia, CA, located within Humboldt. The postal region supports an estimated population of 230 residents across Data Pending housing units, with a population density of 0.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (40.326730, -124.240170)

Data MetricLocal Statistic
Postal / Zip Code95558
Primary CityPetrolia
State / ProvinceCA
CountyHumboldt
Total Population230
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.5 people/sq mi
TimezoneAmerica/Los_Angeles

How 95558 Compares

MetricZIP 95558Humboldt CountyCA State Average
Population230134,80939,286,245
Median IncomeData PendingN/AN/A
Population Density0.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 95545Honeydew9.3 mi194N/A
Zip 95562Rio Dell11.5 mi3,422N/A
Zip 95536Ferndale12.8 mi3,050N/A
Zip 95565Scotia15.1 mi764N/A
Zip 95571Weott15.9 mi104N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →