Fairfax, CA ZIP Codes & Directory
Fairfax is located in Marin County in California. Browse all active 5-digit USPS ZIP codes serving Fairfax and surrounding Marin County delivery districts.
All ZIP Codes in Fairfax, CA
1 CodesAbout Fairfax Mail Delivery & Postal Administration
ZIP codes in Fairfax are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Marin County and surrounding California metropolitan districts.
Frequently Asked Questions About Fairfax, CA ZIP Codes
How many ZIP codes serve Fairfax, California? ▾
Fairfax, California is served by 1 active USPS postal delivery codes: 94930.
What county is Fairfax located in? ▾
Fairfax is an incorporated city located within Marin County, California.
What is the population and demographic size of Fairfax? ▾
According to official U.S. Census Bureau data, Fairfax has an estimated population of 8,729 residents and is situated within the undefined.
How does mail sorting and delivery work in Fairfax? ▾
Mail delivery in Fairfax is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Marin County and surrounding California counties.
How much does it cost to ship a package to Fairfax, CA? ▾
Shipping costs to Fairfax 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 Fairfax? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Fairfax, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.