Millbrae, CA ZIP Codes & Directory
Millbrae is located in San Mateo County in California. Browse all active 5-digit USPS ZIP codes serving Millbrae and surrounding San Mateo County delivery districts.
All ZIP Codes in Millbrae, CA
1 CodesAbout Millbrae Mail Delivery & Postal Administration
ZIP codes in Millbrae are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing San Mateo County and surrounding California metropolitan districts.
Frequently Asked Questions About Millbrae, CA ZIP Codes
How many ZIP codes serve Millbrae, California? ▾
Millbrae, California is served by 1 active USPS postal delivery codes: 94030.
What county is Millbrae located in? ▾
Millbrae is an incorporated city located within San Mateo County, California.
What is the population and demographic size of Millbrae? ▾
According to official U.S. Census Bureau data, Millbrae has an estimated population of 23,212 residents and is situated within the undefined.
How does mail sorting and delivery work in Millbrae? ▾
Mail delivery in Millbrae is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing San Mateo County and surrounding California counties.
How much does it cost to ship a package to Millbrae, CA? ▾
Shipping costs to Millbrae 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 Millbrae? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Millbrae, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.