Napa, CA ZIP Codes & Directory
Napa is located in Napa County in California. Browse all active 5-digit USPS ZIP codes serving Napa and surrounding Napa County delivery districts.
All ZIP Codes in Napa, CA
2 CodesAbout Napa Mail Delivery & Postal Administration
ZIP codes in Napa are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Napa County and surrounding California metropolitan districts.
Frequently Asked Questions About Napa, CA ZIP Codes
How many ZIP codes serve Napa, California? ▾
Napa, California is served by 2 active USPS postal delivery codes: 94558, 94559.
What county is Napa located in? ▾
Napa is an incorporated city located within Napa County, California.
What is the population and demographic size of Napa? ▾
According to official U.S. Census Bureau data, Napa has an estimated population of 93,610 residents and is situated within the undefined.
How does mail sorting and delivery work in Napa? ▾
Mail delivery in Napa is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Napa County and surrounding California counties.
How much does it cost to ship a package to Napa, CA? ▾
Shipping costs to Napa 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 Napa? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Napa, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.