Diamond Bar, CA ZIP Codes & Directory
Diamond Bar is located in Los Angeles County in California. Browse all active 5-digit USPS ZIP codes serving Diamond Bar and surrounding Los Angeles County delivery districts.
All ZIP Codes in Diamond Bar, CA
1 CodesAbout Diamond Bar Mail Delivery & Postal Administration
ZIP codes in Diamond Bar 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 Diamond Bar, CA ZIP Codes
How many ZIP codes serve Diamond Bar, California? ▾
Diamond Bar, California is served by 1 active USPS postal delivery codes: 91765.
What county is Diamond Bar located in? ▾
Diamond Bar is an incorporated city located within Los Angeles County, California.
What is the population and demographic size of Diamond Bar? ▾
According to official U.S. Census Bureau data, Diamond Bar has an estimated population of 46,449 residents and is situated within the undefined.
How does mail sorting and delivery work in Diamond Bar? ▾
Mail delivery in Diamond Bar 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 Diamond Bar, CA? ▾
Shipping costs to Diamond Bar 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 Diamond Bar? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Diamond Bar, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.