ZIP Code 95558

ZIP code 95558 is classified by USPS as a standard delivery area and covers roughly 531.3 square miles in Petrolia, Humboldt County, California. The area is home to 425 residents, producing a population density of 1 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 95558 against California and the nation.

On the economic side, the median household income for ZIP 95558 sits at $51,719 (49% below the California average), while per-capita income is $32,795. The poverty rate stands at 27.4% and the unemployment rate at 0.0%. On housing, the median home value is $566,200 (27% below the state average) with median rent at — per month, and 69.6% of occupied units are owner-occupied, a direct signal of whether 95558 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 24.6% of adults hold a bachelor's degree or higher, the median age is 50.6, and the average commute is —. Use the benchmarks above to see where 95558 sits relative to California and the national baseline rather than viewing the numbers in isolation. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →