ZIP code
95503
Eureka, CA
95503 covers Eureka in Humboldt County, with 24,442 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 95503. Methodology
ZIP code map of 95503

About ZIP code 95503
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 95503. Not ACS. Methodology
People in 95503
Race
- White18,098
- Black or African American296
- American Indian or Alaska Native908
- Asian1,170
- Native Hawaiian and Pacific Islander116
- Other race1,211
- Two or more races2,689
Hispanic or Latino (any race): 2,902
Age
- Under 102,602
- 10 to 192,935
- 20 to 292,715
- 30 to 393,310
- 40 to 492,939
- 50 to 592,926
- 60 to 693,439
- 70 to 792,449
- 80 and older1,173
Income and housing in 95503
Education
- High school graduate91.1%
- Bachelor's degree29.4%
- Graduate degree10.9%
Places covering 95503
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Eureka29.6%
- Humboldt Hill13.6%
- Cutten13.2%
- Pine Hills13.0%
- Bayview10.7%
- Myrtletown3.3%
- Indianola2.2%
- Fields Landing0.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Humboldt County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
14.4% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 95503
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 18,531 | |
| 2006 | 18,344 | |
| 2007 | 19,945 | |
| 2008 | 18,563 | |
| 2009 | 18,549 | |
| 2010 | 18,492 | |
| 2011 | 25,003 | 18,468 |
| 2012 | 24,717 | 18,110 |
| 2013 | 24,899 | 18,040 |
| 2014 | 24,900 | 18,390 |
| 2015 | 25,438 | 18,450 |
| 2016 | 25,830 | 18,440 |
| 2017 | 25,215 | 18,740 |
| 2018 | 25,503 | 18,660 |
| 2019 | 25,972 | 18,680 |
| 2020 | 24,631 | 19,160 |
| 2021 | 23,878 | 18,850 |
| 2022 | 24,072 | 18,830 |
| 2023 | 24,442 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 95503
12 nearest ZIP centroids (any distance)
- 95501Eureka4.8 miPop 22,972 · Income $55,076
- 95537Fields Landing5.9 miPop 512 · Income $76,116
- 95564Samoa6.2 miPop 477 · Income $69,250
- 95524Bayside6.4 miPop 1,770 · Income $82,697
- 95551Loleta7.8 miPop 1,870 · Income $73,472
- 95521Arcata8.0 miPop 21,684 · Income $54,324
- 95549Kneeland11.6 miPop 1,090 · Income $89,583
- 95547Hydesville11.8 miPop 1,144 · Income $85,179
- 95540Fortuna11.9 miPop 14,641 · Income $62,346
- 95550Korbel14.5 miPop 206 · Income $101,167
- 95519Mckinleyville15.8 miPop 18,792 · Income $66,687
- 95536Ferndale17.2 miPop 3,360 · Income $66,563
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 95503, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 95503 FAQ
- What city is ZIP code 95503 in?
- 95503 is in Eureka, CA.
- What county is 95503 in?
- 95503 is in Humboldt County.
- What is the median household income in 95503?
- The median household income in 95503 is $76,708.
- Which ZIP codes are near 95503?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 95503.