Alamo, CA ZIP Codes & Directory
Alamo is located in Contra Costa County in California. Browse all active 5-digit USPS ZIP codes serving Alamo and surrounding Contra Costa County delivery districts.
All ZIP Codes in Alamo, CA
1 CodesAbout Alamo Mail Delivery & Postal Administration
ZIP codes in Alamo 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 Alamo, CA ZIP Codes
How many ZIP codes serve Alamo, California? ▾
Alamo, California is served by 1 active USPS postal delivery codes: 94507.
What county is Alamo located in? ▾
Alamo is an incorporated city located within Contra Costa County, California.
What is the population and demographic size of Alamo? ▾
According to official U.S. Census Bureau data, Alamo has an estimated population of 15,495 residents and is situated within the undefined.
How does mail sorting and delivery work in Alamo? ▾
Mail delivery in Alamo 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 Alamo, CA? ▾
Shipping costs to Alamo 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 Alamo? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Alamo, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.