Zip Code 95521
Arcata, California — Humboldt County
📍 ZIP code 95521 is in Arcata, Humboldt County, California.
ZIP code 95521 is located in Arcata, Humboldt County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 21,684. The area code for ZIP code 95521 is 530.
Quick Answer
Zip code 95521 is in Arcata, California (Humboldt County). It has a population of 21,684, median household income of $54,324, and median home value of $478,600.
Population
21,684
Income
$54,324
Home Value
$478,600
Climate
63°F / 41°F
About Zip Code 95521
Zip code 95521 is located in Arcata, California, within Humboldt County. Home to approximately 21,684 residents, this area sits at an elevation of 37 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 530.
The median household income is $54,324 per year, which is below the national median of $70,784. Homes in this zip code have a median value of $478,600, and the cost of living index is 120 (20% above the national average of 100).
Summers average a high of 63°F while winters drop to 41°F. The area receives about 40 in of rain annually. The zip code covers 53.7 square miles of land area and 17.5 square miles of water.
Key Statistics
21,684
$54,324
$478,600
Pacific (PST/PDT)
530
37 ft
53.7 sq mi
29.2
9,797
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Compare With Nearby Zip Codes
| Metric | 95521 | 95524 | 95501 | 95519 | 95503 | 95564 |
|---|---|---|---|---|---|---|
| City | Arcata, CA | Bayside, CA | Eureka, CA | Arcata, CA | Eureka, CA | Arcata, CA |
| Population | 21,684 | 1,770 | 22,972 | 18,792 | 24,442 | 477 |
| Median Income | $54,324 | $82,697 | $55,076 | $66,687 | $76,708 | $69,250 |
| Home Value | $478,600 | $585,100 | $389,900 | $432,600 | $411,500 | $421,900 |
| Cost of Living | 120 | 161 | 105 | 123 | 118 | 116 |
| Median Age | 29.2 | 46.1 | 39.5 | 40.2 | 44.1 | 41.6 |
Cost of Living
100 = National Average. Arcata's cost of living is 20% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
8.8x
Demographics
Zip code 95521 has a population of 21,684 people with a median age of 29.2. There are 9,797 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Arcata (95521) population trend from 2010 to 2024
↑ 83.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
63°F
41°F
40 in
0 in
Arcata experiences mild summers with average highs around 63°F. Winters are mild with lows averaging 41°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$478,600
Median Household Income
$54,324
With 9,797 housing units across 53.7 square miles, 95521 has a housing density of 182 units per square mile. The home price-to-income ratio is 8.8x.
Location & Geography
Latitude
40.8558°
Longitude
-124.0672°
Land Area
53.7 sq mi
Water Area
17.5 sq mi
Nearby Zip Codes
Zip codes closest to 95521 (Arcata, CA) with distances:
All Zip Codes in Arcata, CA
Other zip codes serving Arcata:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 95521's $54,324. A way to compare Arcata to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 95521 (Arcata, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Arcata, California?
Arcata, California uses zip code 95521 along with 3 other zip codes.
What county is zip code 95521 in?
Zip code 95521 is located in Humboldt County, California.
What is the population of zip code 95521?
The population of zip code 95521 is 21,684 with a median age of 29.2.
Is 95521 in Arcata, California?
Yes, zip code 95521 is in Arcata, Humboldt County, California. The area code is 530.
Frequently Asked Questions
What city is zip code 95521 in?
Zip code 95521 is in Arcata, California. It is part of Humboldt County and uses the Pacific (PST/PDT) timezone.
What is zip code 95521?
Zip code 95521 is a U.S. postal code in Arcata, California (Humboldt County). It has a population of 21,684 and covers 53.7 square miles.
What is the population of zip code 95521?
The population of zip code 95521 (Arcata, CA) is 21,684 with a median age of 29.2. There are approximately 9,797 housing units in this area.
What is the median income in zip code 95521?
The median household income in zip code 95521 (Arcata, CA) is $54,324 per year. The cost of living index is 120 (100 = national average).
What is the average home price in zip code 95521?
The median home value in zip code 95521 (Arcata, CA) is $478,600. The cost of living index is 120 compared to the national average of 100.
What county is zip code 95521 in?
Zip code 95521 is located in Humboldt County, California. The primary city is Arcata.
What is the area code for zip code 95521?
Zip code 95521 in Arcata, CA uses area code 530. It is located in the Pacific (PST/PDT) timezone.
Is zip code 95521 a good place to live?
Zip code 95521 (Arcata, CA) has a cost of living index of 120 (100 = national average), a median household income of $54,324, and median home values of $478,600. The median age is 29.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 95521?
The cost of living index for zip code 95521 (Arcata, CA) is 120, where 100 represents the national average. This area is above the national average. Median home value: $478,600.
What schools serve zip code 95521?
Zip code 95521 in Arcata, California is served by the local school district of Humboldt County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.