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Eureka-Arcata, CA micro area ZIP codes

The Eureka-Arcata, CA micropolitan statistical area (CBSA 21700) covers 1 county in California and 38 ZIP codes.

ZIP codes
38
Population
134,809
Avg. median income
$62,500population-weighted
Counties
1
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Counties in the Eureka-Arcata, CA area

ZIP codes in the Eureka-Arcata, CA area

ZIP codes in the Eureka-Arcata, CA area
ZIP codeCityCountyPopulationMedian incomeTypical home value
95501EurekaHumboldt County22,890$54,137$376,300
95502 PO BoxEurekaHumboldt County———
95503EurekaHumboldt County25,054$71,855$417,200
95511AlderpointHumboldt County71——
95514BlocksburgHumboldt County85——
95518 PO BoxArcataHumboldt County———
95519MckinleyvilleHumboldt County18,728$73,280$473,600
95521ArcataHumboldt County21,980$53,114$470,500
95524BaysideHumboldt County1,634$87,500$599,200
95525Blue LakeHumboldt County1,441$57,379$440,300
95526BridgevilleHumboldt County745$39,583$213,700
95528CarlottaHumboldt County1,286$55,481$348,100
95534 PO BoxCuttenHumboldt County———
95536FerndaleHumboldt County3,050$73,375$491,600
95537Fields LandingHumboldt County532$78,686$435,500
95540FortunaHumboldt County14,469$63,695$407,900
95542GarbervilleHumboldt County2,463$46,104$314,600
95545HoneydewHumboldt County194—$576,900
95546HoopaHumboldt County2,397$61,607$253,400
95547HydesvilleHumboldt County1,263$96,827$517,000
95549KneelandHumboldt County1,024$95,179$538,700
95550KorbelHumboldt County140$104,063$2,000,001
95551LoletaHumboldt County1,880$64,519$431,000
95553MirandaHumboldt County789$41,450$325,000
95554Myers FlatHumboldt County368$33,125$594,800
95555OrickHumboldt County216$39,583$433,300
95556OrleansHumboldt County949—$311,300
95558PetroliaHumboldt County230$51,719$566,200
95559PhillipsvilleHumboldt County41——
95560RedwayHumboldt County1,213$23,720$257,500
95562Rio DellHumboldt County3,422$42,975$301,300
95564SamoaHumboldt County444$78,750$480,800
95565ScotiaHumboldt County764$57,083$364,600
95569RedcrestHumboldt County99—$287,500
95570TrinidadHumboldt County2,640$74,777$569,300
95571WeottHumboldt County104——
95573Willow CreekHumboldt County1,089$47,258$310,800
95589WhitethornHumboldt County1,115$43,040$350,400

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Frequently asked questions

How many ZIP codes are in the Eureka-Arcata, CA micro area?

38 ZIP codes, based on each ZIP code's main county.

Which counties make up the Eureka-Arcata, CA area?

Humboldt County.

What is an MSA?

A metropolitan statistical area (MSA) is a core city of 50,000+ people plus the surrounding counties tied to it by commuting, as defined by the U.S. Office of Management and Budget. Micropolitan areas have a core of 10,000–50,000. Together they are called core-based statistical areas (CBSAs).