PlainZIP

Eureka, CA

Single-footprint Census roll-up for Eureka, CA: 2 USPS ZIPs, population 48,128. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet EUREKA-CA · Eureka, CA 2 ZIPs · 48,128 pop · #16370/25278 · Humboldt County

INC-MID · RANK-LOWER · PHOTO-FINISH · BOOK-FEW · OWN-LOW · POP-SMALL · SPREAD-MOD · HOME-HIGH

  • INC-MID $62,996
  • RANK-LOWER #16370/25278
  • PHOTO-FINISH ≈ Fortuna
  • BOOK-FEW 2 ZIPs
  • OWN-LOW 55% owners
  • POP-SMALL 48,128
  • SPREAD-MOD 95501→95503
  • HOME-HIGH $428,500

Nearest income peer: Fortuna, CA (+ $699 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Eureka

Lowest/highest poles plus county-sharing cities nearest Eureka on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Eureka, CA sits among US cities with a below-median household income, on a small-city population base, across a handful of delivery areas.

35th pct
household income vs 25,278 US cities
48,128
city population (Census)
2
USPS ZIP codes covered
$62,996
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Below-median income with few delivery areas (2): read cost-of-living from the primary ZIP. Household income $62,996 and poverty 17.3% concentrate in 95503.

Owner-occupancy is comparatively low (55.3%) for this income tier, rent $1,378 may matter more than the home-value average.

Within California, Salyer is the closest lower-income city and Lower Lake the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Eureka.

Within-city ZIP comparison

Where the ZIP codes inside Eureka differ

The published income range is comparatively compact across the ZIPs in Eureka: $54,137 in ZIP 95501 to $71,855 in 95503. The city average is therefore a more representative summary here, though each ZIP page still carries its own housing and demographic record.

Income high-to-low ratio
1.3×

95501 to 95503

Home-value high-to-low ratio
1.1×

95501 to 95503

Poverty-rate spread
6.9 points

95503 to 95501

Derived from the published ACS 2023 ZIP-level records shown on this site. A high-to-low ratio compares the highest and lowest available ZIP values; it is not a score or forecast.

Population concentration

Lead ZIP 95503 skews compact Eureka

In this 2-ZIP cluster, 95503 covers about 50% of Eureka's 48,128 residents. City averages lean toward that lead; open a thinner sibling ZIP for the contrast the mean hides.

Census ZBP business roll-up

Employer-heavy short list in Eureka

Citywide ZBP: 1,339 establishments, 16,308 employees , annual payroll $860,145k (~28 establishments per 1,000 residents) across 2 of 2 ZIPs. Peak business ZIP 95501 (1,004 units) ; leading NAICS Retail trade (224) · also Health care and social assistance · Accommodation and food services .

View your shortlist →

ZIP Codes in Eureka, CA

These ZIP codes sit in Humboldt County, which covers 35 ZIP codes in all; 2 of them fall in Eureka. See the Humboldt County roll-up →

Eureka lands mid-pack among the 12 cities sharing Humboldt County: Mckinleyville, Ferndale and Trinidad earn more and Arcata, Rio Dell and Garberville earn less. Bayside marks the far end of that range at $87,500, 39% above Eureka.

Side-by-side: Compare 95503 vs 95501 →

ZIP Code Population Median income Establishments Density
95503 24,152 $71,855 335 108
95501 23,976 $54,137 1,004 1,315
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Eureka roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Eureka, .