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Where am ILOCATED

Humboldt County, California

Humboldt County, California, has 131,647 residents (July 2025 estimate). Its county seat is Eureka. It uses Pacific Time and covers 3,568 sq mi (9,241 km²) of land.

Los AngelesSan DiegoSan Jose
Humboldt County in California
Trinity CountyEurekaMcKinleyvilleFortuna
Humboldt County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
131,647
Land area
3,568 sq mi (9,241 km²)
County seat or government
Eureka
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$61,160 ± $1,660
Median home value
$446,900 ± $8,723
Median rent, with utilities
$1,287 ± $52
Homes lived in by their owners
56.5% ± 1.5 points
County type
County
Metro or micro area
Eureka-Arcata, CA micro areaCentral county
Water area
484 sq mi (1,254 km²)
State
California
County code (FIPS)
06023
Coordinates (central point)
40.706655, -123.926176
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Humboldt County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 9550325,054 people
  2. 9550122,890 people
  3. 9552121,980 people
  4. 9551918,728 people
  5. 9554014,469 people
  6. 955623,422 people
  7. 955363,050 people
  8. 955702,640 people
  9. 955422,463 people
  10. 955462,397 people
  11. 955511,880 people
  12. 955241,634 people
All 36
  1. 955251,441 people
  2. 955281,286 people
  3. 955471,263 people
  4. 955601,213 people
  5. 955891,115 people
  6. 955731,089 people
  7. 955491,024 people
  8. 95556949 people
  9. 95553789 people
  10. 95565764 people
  11. 95526745 people
  12. 95552586 people
  13. 95537532 people
  14. 95564444 people
  15. 95554368 people
  16. 95558230 people
  17. 95555216 people
  18. 95545194 people
  19. 95550140 people
  20. 95571104 people
  21. 9556999 people
  22. 9551485 people
  23. 9551171 people
  24. 9555941 people

36 ZIP Code areas overlap Humboldt County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Humboldt County, largest first

  1. Northern Humboldt Union High School District46,996 people
  2. Eureka City Unified School District33,667 people
  3. Fortuna Union High School District23,070 people
  4. McKinleyville Union Elementary School District16,923 people
  5. Eureka City Unified School District (7-12)16,198 people
  6. Arcata Elementary School District15,684 people
  7. Fortuna Elementary School District14,395 people
  8. South Bay Union Elementary School District7,485 people
  9. Southern Humboldt Joint Unified School District6,212 people
  10. Cutten Elementary School District5,732 people
  11. Klamath-Trinity Joint Unified School District4,909 people
  12. Pacific Union Elementary School District (Humboldt County)4,862 people
All 34
  1. Rio Dell Elementary School District3,434 people
  2. Jacoby Creek Elementary School District3,113 people
  3. Ferndale Unified School District3,057 people
  4. Freshwater Elementary School District2,547 people
  5. Trinidad Union Elementary School District2,269 people
  6. Blue Lake Union Elementary School District1,971 people
  7. Loleta Union Elementary School District1,473 people
  8. Hydesville Elementary School District1,331 people
  9. Southern Trinity Joint Unified School District1,233 people
  10. Cuddeback Union Elementary School District1,045 people
  11. Scotia Union Elementary School District886 people
  12. Fieldbrook Elementary School District813 people
  13. Bridgeville Elementary School District506 people
  14. Peninsula Union Elementary School District476 people
  15. Mattole Unified School District438 people
  16. Garfield Elementary School District434 people
  17. Big Lagoon Union Elementary School District407 people
  18. Eureka City Unified School District (9-12)267 people
  19. Kneeland Elementary School District267 people
  20. Orick Elementary School District214 people
  21. Green Point Elementary School District203 people
  22. Maple Creek Elementary School District61 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Tribal areas in Humboldt County, largest first

  1. Hoopa Valley Reservation2,248 people
  2. Yurok Reservation612 people
  3. Karuk Reservation and Off-Reservation Trust Land550 people
  4. Rohnerville (Rancheria) Trust Land294 people
  5. Blue Lake Rancheria and Off-Reservation Trust Land121 people
  6. Table Bluff Reservation103 people
  7. Trinidad Rancheria and Off-Reservation Trust Land95 people
  8. Big Lagoon Rancheria0 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Eureka, California (city)26,010 people
  2. Arcata, California (city)18,607 people
  3. McKinleyville, California (CDP)17,113 people
  4. Fortuna, California (city)12,326 people
  5. Myrtletown, California (CDP)5,322 people
  6. Humboldt Hill, California (CDP)3,551 people
  7. Cutten, California (CDP)3,550 people
  8. Rio Dell, California (city)3,349 people
  9. Pine Hills, California (CDP)2,875 people
  10. Bayview, Humboldt County, California (CDP)2,803 people
  11. Hoopa, California (CDP)2,233 people
  12. Ferndale, California (city)1,552 people
All 40
  1. Westhaven-Moonstone, California (CDP)1,537 people
  2. Garberville, California (CDP)1,415 people
  3. Hydesville, California (CDP)1,263 people
  4. Redway, California (CDP)1,145 people
  5. Willow Creek, California (CDP)1,076 people
  6. Manila, California (CDP)985 people
  7. Blue Lake, California (city)982 people
  8. Fieldbrook, California (CDP)736 people
  9. Loleta, California (CDP)723 people
  10. Indianola, California (CDP)560 people
  11. Shelter Cove, California (CDP)543 people
  12. Fields Landing, California (CDP)532 people
  13. Miranda, California (CDP)513 people
  14. Scotia, California (CDP)405 people
  15. Trinidad, California (city)347 people
  16. Benbow, California (CDP)316 people
  17. Fairhaven, California (CDP)293 people
  18. Orick, California (CDP)199 people

See all 40 cities, towns and communities in Humboldt County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Trinity County, California43 mi east
  2. Del Norte County, California72 mi north
  3. Mendocino County, California92 mi south
  4. Siskiyou County, California95 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.