Larkspur, CA ZIP Codes & Directory
Larkspur is located in Marin County in California. Browse all active 5-digit USPS ZIP codes serving Larkspur and surrounding Marin County delivery districts.
All ZIP Codes in Larkspur, CA
1 CodesAbout Larkspur Mail Delivery & Postal Administration
ZIP codes in Larkspur 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 Larkspur, CA ZIP Codes
How many ZIP codes serve Larkspur, California? ▾
Larkspur, California is served by 1 active USPS postal delivery codes: 94939.
What county is Larkspur located in? ▾
Larkspur is an incorporated city located within Marin County, California.
What is the population and demographic size of Larkspur? ▾
According to official U.S. Census Bureau data, Larkspur has an estimated population of 7,465 residents and is situated within the undefined.
How does mail sorting and delivery work in Larkspur? ▾
Mail delivery in Larkspur 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 Larkspur, CA? ▾
Shipping costs to Larkspur 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 Larkspur? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Larkspur, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.