San Leandro, CA ZIP Codes & Directory
San Leandro is located in Alameda County in California. Browse all active 5-digit USPS ZIP codes serving San Leandro and surrounding Alameda County delivery districts.
All ZIP Codes in San Leandro, CA
3 CodesAbout San Leandro Mail Delivery & Postal Administration
ZIP codes in San Leandro are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Alameda County and surrounding California metropolitan districts.
Frequently Asked Questions About San Leandro, CA ZIP Codes
How many ZIP codes serve San Leandro, California? ▾
San Leandro, California is served by 3 active USPS postal delivery codes: 94577, 94578, 94579.
What county is San Leandro located in? ▾
San Leandro is an incorporated city located within Alameda County, California.
What is the population and demographic size of San Leandro? ▾
According to official U.S. Census Bureau data, San Leandro has an estimated population of 111,694 residents and is situated within the undefined.
How does mail sorting and delivery work in San Leandro? ▾
Mail delivery in San Leandro is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Alameda County and surrounding California counties.
How much does it cost to ship a package to San Leandro, CA? ▾
Shipping costs to San Leandro 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 Leandro? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach San Leandro, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.