San Marino, CA ZIP Codes & Directory
San Marino is located in Los Angeles County in California. Browse all active 5-digit USPS ZIP codes serving San Marino and surrounding Los Angeles County delivery districts.
All ZIP Codes in San Marino, CA
1 CodesAbout San Marino Mail Delivery & Postal Administration
ZIP codes in San Marino are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Los Angeles County and surrounding California metropolitan districts.
Frequently Asked Questions About San Marino, CA ZIP Codes
How many ZIP codes serve San Marino, California? ▾
San Marino, California is served by 1 active USPS postal delivery codes: 91108.
What county is San Marino located in? ▾
San Marino is an incorporated city located within Los Angeles County, California.
What is the population and demographic size of San Marino? ▾
According to official U.S. Census Bureau data, San Marino has an estimated population of 12,777 residents and is situated within the undefined.
How does mail sorting and delivery work in San Marino? ▾
Mail delivery in San Marino is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Los Angeles County and surrounding California counties.
How much does it cost to ship a package to San Marino, CA? ▾
Shipping costs to San Marino 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 San Marino? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach San Marino, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.