Skip to content
GERBER.ai

ZIP 95558 · Petrolia

Who lives in ZIP code 95558 (Petrolia, CA): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Petrolia, CA · Humboldt County

uszips 2026
People230
Median age50.6
Household income$51,719
Home value—
Median rent—
Poverty27.4%
College degree+24.7%
Commute24 min

Place

Metro area
Eureka-Arcata, CA (micro)
Time zone
Pacific
Density
1 / sq mi
Housing units
125

County

Humboldt100%

Share of the ZIP's people in each county.

Age mix

Under 104.8%
10–198.7%
20s3.5%
30s7.8%
40s20.0%
50s12.6%
60s13.1%
70s25.7%
80+3.9%

36.5% are 65 or older; 86.5% are adults.

Household income

Under $25K19.2%
$25K–50K26.4%
$50K–75K15.2%
$75K–100K24.0%
$100K–150K12.8%
$150K+2.4%

15.2% of households earn $100K+. Median per person: $25,179.

Education (adults 25+)

Less than high school0.0%
High school19.6%
Some college55.8%
Bachelor's12.1%
Graduate12.6%

57.2% of degrees are in STEM fields.

Race

White78.3%
Black0.0%
Asian1.7%
Native American12.6%
Pacific Islander0.0%
Other0.0%
Two or more7.4%

0.0% Hispanic or Latino (of any race).

Households & family

Married
32.2%
Never married
13.1%
Divorced
54.8%
Widowed
0.0%
Family size
2.33
Dual-income families
47.8%

Housing

Own their home
69.6%
Rent burden
—
Men / women
53% / 47%

Work

In labor force
56.8%
Unemployment
0.0%
Self-employed
41.2%
Farmers
11.8%

Community

Charitable givers
11.8%
Veterans
1.5%
With a disability
13.0%
No health insurance
1.7%
Limited English
0.0%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

Market now