San Ramon, CA ZIP Codes & Directory
San Ramon is located in Contra Costa County in California. Browse all active 5-digit USPS ZIP codes serving San Ramon and surrounding Contra Costa County delivery districts.
All ZIP Codes in San Ramon, CA
2 CodesAbout San Ramon Mail Delivery & Postal Administration
ZIP codes in San Ramon are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Contra Costa County and surrounding California metropolitan districts.
Frequently Asked Questions About San Ramon, CA ZIP Codes
How many ZIP codes serve San Ramon, California? ▾
San Ramon, California is served by 2 active USPS postal delivery codes: 94582, 94583.
What county is San Ramon located in? ▾
San Ramon is an incorporated city located within Contra Costa County, California.
What is the population and demographic size of San Ramon? ▾
According to official U.S. Census Bureau data, San Ramon has an estimated population of 87,755 residents and is situated within the undefined.
How does mail sorting and delivery work in San Ramon? ▾
Mail delivery in San Ramon is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Contra Costa County and surrounding California counties.
How much does it cost to ship a package to San Ramon, CA? ▾
Shipping costs to San Ramon 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 Ramon? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach San Ramon, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.