Pittsburg, CA ZIP Codes & Directory
Pittsburg is located in Contra Costa County in California. Browse all active 5-digit USPS ZIP codes serving Pittsburg and surrounding Contra Costa County delivery districts.
All ZIP Codes in Pittsburg, CA
1 CodesAbout Pittsburg Mail Delivery & Postal Administration
ZIP codes in Pittsburg 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 Pittsburg, CA ZIP Codes
How many ZIP codes serve Pittsburg, California? ▾
Pittsburg, California is served by 1 active USPS postal delivery codes: 94565.
What county is Pittsburg located in? ▾
Pittsburg is an incorporated city located within Contra Costa County, California.
What is the population and demographic size of Pittsburg? ▾
According to official U.S. Census Bureau data, Pittsburg has an estimated population of 100,341 residents and is situated within the undefined.
How does mail sorting and delivery work in Pittsburg? ▾
Mail delivery in Pittsburg 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 Pittsburg, CA? ▾
Shipping costs to Pittsburg 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 Pittsburg? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Pittsburg, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.