Mill Valley, CA ZIP Codes & Directory
Mill Valley is located in Marin County in California. Browse all active 5-digit USPS ZIP codes serving Mill Valley and surrounding Marin County delivery districts.
All ZIP Codes in Mill Valley, CA
1 CodesAbout Mill Valley Mail Delivery & Postal Administration
ZIP codes in Mill Valley 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 Mill Valley, CA ZIP Codes
How many ZIP codes serve Mill Valley, California? ▾
Mill Valley, California is served by 1 active USPS postal delivery codes: 94941.
What county is Mill Valley located in? ▾
Mill Valley is an incorporated city located within Marin County, California.
What is the population and demographic size of Mill Valley? ▾
According to official U.S. Census Bureau data, Mill Valley has an estimated population of 31,480 residents and is situated within the undefined.
How does mail sorting and delivery work in Mill Valley? ▾
Mail delivery in Mill Valley 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 Mill Valley, CA? ▾
Shipping costs to Mill Valley 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 Mill Valley? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Mill Valley, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.