Postal Codes

95503 ZIP Code

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ZIP code 95503 covers Eureka, California, with a population of about 24,442 and a median household income of $76,708.

Population
24,442292 per square mile
Median age
44.15.4 points above the US average
Median household income
$76,70820% below the California median
Poverty rate
15.8%3.4 points above the US average
Typical home value
$430,110down 4.4% in five years
Median rent
$1,48524% below the California median
Degree or higher
29.4%5.6 points below the US average
Homeownership
69.7%4.7 points above the US average
Time zone
Pacific UTC-08:00observes daylight saving time
Businesses
329

Where 95503 is

Eureka, California — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population24,442
Median age44.1
Family households62.9%
Born outside the US8%
Speaks a language other than English at home9.6%
White (non-Hispanic)72.1%
Black (non-Hispanic)0.6%
Asian (non-Hispanic)3.9%
Hispanic or Latino13.8%
Veterans6.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$76,708
Income per person$42,456
Poverty rate15.8%
Households on SNAP or cash assistance18.3%

Household income distribution

Under $10k5.0%
$10–15k5.9%
$15–20k2.2%
$20–25k3.7%
$25–30k4.8%
$30–35k3.4%
$35–40k2.2%
$40–45k3.9%
$45–50k2.9%
$50–60k5.4%
$60–75k9.1%
$75–100k14.3%
$100–125k10.6%
$125–150k8.5%
$150–200k8.2%
$200k or more10.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed10,400
Mean adjusted gross income$73,541
Returns declaring $200,000 or more4.7%
Returns, under $25k25.8%
Returns, $25k–$50k25.3%
Returns, $50k–$75k16.4%
Returns, $75k–$100k10.7%
Returns, $100k–$200k17.1%
Returns, $200k or more4.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$411,500
Median gross rent$1,485
Rent as a share of household income33.1%
Owner-occupied69.7%
Vacant homes7.1%
Median year built1972

What the homes are

Detached house77.8%
Attached house4.2%
2 to 4 units5.7%
5 to 19 units2.3%
20 or more units1.3%
Mobile home7.7%
Boat, RV or van1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$430,110as of 2026-07
Typical home value, 1 yeardown 1%
Typical home value, 5 yearsdown 4.4%
Typical home value, 10 yearsup 33.6%
Typical asking rent$1,742as of 2026-07
Typical home value since 2000
200120132026$501,055$179,340

$179,340 in 2001 to $430,110 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.8%
Bachelor's degree or higher29.4%
High school diploma or higher91.1%
Works from home10.2%
Drives to work alone67%
Takes public transport0.6%
Commutes 45 minutes or more3.7%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity31.4% 2 pts below the national average of 33.4%
Diagnosed diabetes12% same as the national average of 12%
Currently smokes14.8% 1.6 pts above the national average of 13.2%
High blood pressure34.8% 0.7 pts above the national average of 34.1%
Fair or poor general health22.8% 2.5 pts above the national average of 20.3%
No health insurance (18–64)7.4% 3.9 pts below the national average of 11.3%
Depression25.5% 3.6 pts above the national average of 21.9%
No leisure-time physical activity24.4% 1 pts below the national average of 25.4%
Arthritis27.9% 2.8 pts above the national average of 25.1%
Binge drinking16.3% same as the national average of 16%
Taking blood pressure medication74.5% same as the national average of 74.7%
Cancer (non-skin)9.4% 1.7 pts above the national average of 7.7%
Current asthma10.9% 0.5 pts above the national average of 10.4%
Coronary heart disease7.6% 1.4 pts above the national average of 6.2%
Routine check-up in past year73.1% 3.6 pts below the national average of 76.7%
Cholesterol screening85.6% same as the national average of 85.9%
Cognitive disability16.2% 1.4 pts above the national average of 14.8%
Colorectal screening62.3% 2 pts below the national average of 64.3%
COPD8.1% 1.5 pts above the national average of 6.6%
Visited a dentist61.8% 0.5 pts above the national average of 61.3%
Any disability34.3% 3.6 pts above the national average of 30.7%
Lacks emotional support25.3% 0.5 pts above the national average of 24.8%
Food insecurity16.4% 0.7 pts below the national average of 17.1%
Received food stamps17.3% 3 pts above the national average of 14.3%
Hearing disability7.9% 1.2 pts above the national average of 6.7%
High cholesterol37.2% 1 pts above the national average of 36.2%
Housing insecurity12.9% 0.9 pts below the national average of 13.8%
Independent living disability9.9% 1.5 pts above the national average of 8.4%
Lacks transport9.2% same as the national average of 9.2%
Loneliness33.4% 1 pts below the national average of 34.4%
Mammography use75.1% 0.8 pts below the national average of 75.9%
Poor mental health (14+ days)19% 2.2 pts above the national average of 16.8%
Mobility disability16.7% 2.7 pts above the national average of 14%
Poor physical health (14+ days)15.4% 1.9 pts above the national average of 13.5%
Self-care disability4.6% 0.6 pts above the national average of 4%
Utility shut-off threat7.8% 1 pts below the national average of 8.8%
Sleeps under 7 hours33.7% 2.7 pts below the national average of 36.4%
Stroke4.1% 0.7 pts above the national average of 3.4%
All natural teeth lost11.4% 1.6 pts below the national average of 13%
Vision disability5.8% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments329
People employed2,910
Annual payroll$144,092,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 79.2% of US census tracts
FEMA ratingRelatively Moderate to Very High across the 10 census tracts this ZIP code covers
Expected annual loss77.9 out of 100
Community resilience42.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Landslide96.6Relatively Moderate at its worst in this ZIP code
Earthquake92.7Very High at its worst in this ZIP code
Wildfire91Relatively Moderate at its worst in this ZIP code
Tsunami82.3Relatively High at its worst in this ZIP code
Coastal flooding78.7Very High at its worst in this ZIP code
River flooding74.8Relatively High at its worst in this ZIP code
Avalanche30.3Very Low at its worst in this ZIP code
Hail17.2Very Low at its worst in this ZIP code
Winter weather15.9Very Low at its worst in this ZIP code
Lightning11.3Relatively Low at its worst in this ZIP code
Heat wave4.6Very Low at its worst in this ZIP code
Strong wind4.5Very Low at its worst in this ZIP code
Tornado2.3Very Low at its worst in this ZIP code
Compared with California and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPCaliforniaUnited States
Median household income$76,708$96,334$78,538
Income per person$42,456$47,977$43,289
Poverty rate15.8%12%12.4%
Median home value$411,500$695,400$303,400
Median gross rent$1,485$1,956$1,348
Homeownership69.7%55.8%65%
Bachelor's degree or higher29.4%36.5%35%
Unemployment rate4.8%6.4%5.2%
Works from home10.2%15.5%13.5%
Born outside the US8%26.7%13.9%
Median age44.137.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationEUREKA WFO WOODLEY ISLAND, CA US5.6 km away
Rain in a year40 in

Average high and low by month

January55.1°F / 40.8°F6.67 in rain
February55.4°F / 41.3°F5.64 in rain
March56.1°F / 42.4°F5.75 in rain
April57.4°F / 44.2°F3.64 in rain
May59.6°F / 47.7°F1.66 in rain
June61.9°F / 50.1°F0.7 in rain
July63.1°F / 52.4°F0.18 in rain
August64°F / 53°F0.18 in rain
September63.9°F / 50.5°F0.68 in rain
October61.9°F / 46.8°F2.31 in rain
November57.8°F / 43.2°F4.89 in rain
December54.7°F / 40°F8.1 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket3% of this ZIP code's area
Far from a supermarket3% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 8 school districts, so the address decides which one, not the ZIP code.

Eureka City Unified School District (7-12)46% of this ZIP code's land area
Garfield Elementary School District21.2% of this ZIP code's land area
South Bay Union Elementary School District12.8% of this ZIP code's land area
Cutten Elementary School District7.1% of this ZIP code's land area
Freshwater Elementary School District4.9% of this ZIP code's land area
Eureka City Unified School District4.1% of this ZIP code's land area
Kneeland Elementary School District1.9% of this ZIP code's land area
Eureka City Unified School District (9-12)1.9% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability44more vulnerable than 44% of US census tracts
Socioeconomic status61more vulnerable than 61% of US census tracts
Household characteristics30more vulnerable than 30% of US census tracts
Racial and ethnic minority status29more vulnerable than 29% of US census tracts
Housing type and transport43more vulnerable than 43% of US census tracts
Walkability4.8 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

95501 Eureka, CA3.9 km away
95502 Eureka, CA4.3 km away
95534 Cutten, CA4.3 km away
95564 Samoa, CA5.7 km away
95537 Fields Landing, CA6.1 km away
95524 Bayside, CA11.5 km away
95551 Loleta, CA12.5 km away
95518 Arcata, CA13.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Humboldt County100% of this ZIP code's land area
Time zonePacific (UTC-08:00 standard)
Daylight saving timeObserved
Land area83.74 sq mi
Water area0.84 sq mi
Population density292 people per sq mi
Latitude, longitude40.7592, -124.1593

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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