Residential delivery area · California
ZIP Code 95558: Petrolia, CA
ZIP code 95558 uses the postal name Petrolia, California and lies entirely in Humboldt County (Census 2020 ZIP-county file). About 230 people live there (Census Bureau, ACS 2020-2024). Median household income is $51,719 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Petrolia · its only residential ZIP
- County
- Humboldt County
- Micro area
- Eureka-Arcata, CA
- House district
- CA-2 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 168.4 sq mi · 1 person per sq mi
Where is ZIP code 95558?
95558 centers on 40.338°, -124.261° and covers 168.4 square miles of land plus 0.3 of water. It borders 2 ZIP codes: 95545, 95536.
The map draws ZIP code areas only. For the streets inside 95558, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 95558 compare with the rest of Humboldt County?
| Measure | 95558 | In Humboldt County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 230 | 28th of 36 | 1,619th of 1,802 |
| Median household income | $52k | not ranked | not ranked |
| Median home value | $566k | not ranked | not ranked |
95558's income and home value are not ranked: it has fewer than 1,000 residents (230). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 5% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 95558?
The 2020 Census counted 548 people in 95558; the ACS, which samples households over 2020-2024, estimates 230. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 230±114 (90% margin)
- 2020 Census count
- 548
- Households
- 125
- Median age
- 50.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 95558?
Of the 230 people the ACS estimates in 95558, 13.5% are under 18 and 36.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (78.3%), then Other or two or more (20.0%).
- Under 1813.5%
- 18 to 6450.0%
- 65 and older36.5%
- White, not Hispanic78.3%
- Other or two or more20.0%
- Asian, not Hispanic1.7%
- Hispanic or Latino0.0%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 95558 earn?
Median household income is $51,719 (ACS 2020-2024).
- Median household income
- $51,719±$38,051
- Income per person
- $32,795
- Below the poverty line
- 27.4%
- Unemployed (of the labor force)
- 0.0%
- Adults 25+ with a bachelor's degree
- 24.6%
- Adjusted gross income per tax return, 2022
- $35,827150 returns; wages 45% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 95558?
- Median home value (owners' estimate)
- $566,200
- Median gross rent
- –
- Homes owned by their occupants
- 69.6%
- Housing units
- 203
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 95558?
9 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018 (ZIP Code Business Patterns).
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 95558?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 95545 | Honeydew | 194 | – | 10.6 mi |
| 95536 | Ferndale | 3,050 | $73k | 11.6 mi |
| 95562 | Rio Dell | 3,422 | $43k | 11.1 mi (near) |
| 95565 | Scotia | 764 | $57k | 15.3 mi (near) |
| 95571 | Weott | 104 | – | 16.8 mi (near) |
| 95540 | Fortuna | 14,469 | $64k | 17.4 mi (near) |
| 95547 | Hydesville | 1,263 | $97k | 18.7 mi (near) |
| 95528 | Carlotta | 1,286 | $56k | 20.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.