Arcata, CA ZIP Codes & Directory
Arcata is located in Humboldt County in California. Browse all active 5-digit USPS ZIP codes serving Arcata and surrounding Humboldt County delivery districts.
All ZIP Codes in Arcata, CA
1 CodesAbout Arcata Mail Delivery & Postal Administration
ZIP codes in Arcata are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Humboldt County and surrounding California metropolitan districts.
Frequently Asked Questions About Arcata, CA ZIP Codes
How many ZIP codes serve Arcata, California? ▾
Arcata, California is served by 1 active USPS postal delivery codes: 95521.
What county is Arcata located in? ▾
Arcata is an incorporated city located within Humboldt County, California.
What is the population and demographic size of Arcata? ▾
According to official U.S. Census Bureau data, Arcata has an estimated population of 21,581 residents and is situated within the undefined.
How does mail sorting and delivery work in Arcata? ▾
Mail delivery in Arcata is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Humboldt County and surrounding California counties.
How much does it cost to ship a package to Arcata, CA? ▾
Shipping costs to Arcata depend on the package weight, dimensions, shipping carrier (USPS, UPS, FedEx), and the distance from the origin ZIP code. To calculate exact postage rates, use our shipping cost estimator tool.
What is the standard delivery time for mail to Arcata? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Arcata, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.