Mckinleyville, CA ZIP Codes & Directory
Mckinleyville is located in Humboldt County in California. Browse all active 5-digit USPS ZIP codes serving Mckinleyville and surrounding Humboldt County delivery districts.
All ZIP Codes in Mckinleyville, CA
1 CodesAbout Mckinleyville Mail Delivery & Postal Administration
ZIP codes in Mckinleyville 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 Mckinleyville, CA ZIP Codes
How many ZIP codes serve Mckinleyville, California? ▾
Mckinleyville, California is served by 1 active USPS postal delivery codes: 95519.
What county is Mckinleyville located in? ▾
Mckinleyville is an incorporated city located within Humboldt County, California.
What is the population and demographic size of Mckinleyville? ▾
According to official U.S. Census Bureau data, Mckinleyville has an estimated population of 18,421 residents and is situated within the undefined.
How does mail sorting and delivery work in Mckinleyville? ▾
Mail delivery in Mckinleyville 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 Mckinleyville, CA? ▾
Shipping costs to Mckinleyville 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 Mckinleyville? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Mckinleyville, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.