Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/HUMBOLDT-HILL

Humboldt Hill ZIP codes, California

No ZIP code is named for Humboldt Hill, CA; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 95503, 95551 and 95537. Its area codes are 707 and 369.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
3,551
Area codes
707, 369

NANPA lists no telephone rate centre for Humboldt Hill itself, so these are the area codes of the nearest one, Eureka (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Humboldt Hill in numbers

About 3,551 people live in Humboldt Hill, in 1,194 households. The median household income is $71,667 a year, 28% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $406,500 (45% below the California median), and median gross rent is $1,896 a month. The median age is 39.4; 21.1% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 17 minutes.

Population3,551Humboldt Hill3,551
Households1,194Humboldt Hill1,194
Median age39.4Humboldt Hill39.4California37.9US 38.9
Median household income$71,667Humboldt Hill$71,667California$99,122US $80,734
Median home value$406,500Humboldt Hill$406,500California$734,700US $332,700
Median gross rent$1,896Humboldt Hill$1,896California$2,036US $1,413
Bachelor's degree or higher21.1%Humboldt Hill21.1%California37.1%US 35.7%
Mean commute17.3 minHumboldt Hill17.3 minCalifornia28.7 minUS 26.4 min
Population density855 / sq miHumboldt Hill855 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Humboldt Hill CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Humboldt Hill

These ZIP codes cover part of Humboldt Hill but are addressed as somewhere else.

ZIP codes overlapping Humboldt Hill
ZIP City Type Population Median income Median home
95503 Eureka , CA Standard 25,054 $71,855 $444,700
95537 Fields Landing , CA Standard 532 $78,686 $435,500
95551 Loleta , CA Standard 1,880 $64,519 $558,100

Map of Humboldt Hill ZIP codes

955039553795551

The ZIP codes of Humboldt Hill, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Humboldt Hill

The nearest larger towns are Eureka (26,010 people, 5.7 mi), Myrtletown (5,322 people, 5.8 mi) and Fortuna (12,326 people, 9.8 mi).

Towns near Humboldt Hill
TownPopulationDistance
Pine Hills 2,875 2.0 mi
Bayview 2,803 3.1 mi
Cutten 3,550 4.1 mi
Eureka 26,010 5.7 mi
Myrtletown 5,322 5.8 mi
Fortuna 12,326 9.8 mi
Arcata 18,607 11.6 mi
Rio Dell 3,349 16.2 mi
McKinleyville 17,113 17.0 mi

More nearby: every ZIP code in Humboldt County · California ZIP codes

Cite this page

zipcodes.pro. “Humboldt Hill, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/humboldt-hill

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