Foster City Post Office

1050 Shell Blvd, Foster City, CA 94404

Contact Numbers

Phone: 650-358-8490
Fax: 650-349-9726
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Carrier Facility: This location is for mail processing only. For retail services, please use one of the nearby locations below.

  • Street Parking

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

640 Masonic Way
1.2 miles away

25th Avenue
135 W 25th Ave
1.8 miles away

San Mateo
1630 S Delaware St
1.8 miles away

San Carlos
809 Laurel St
1.9 miles away


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This location has been closed in Foster City. A new location has NOT opened in Foster city as of mid May 2018

* is not a part of, or affiliated with, the official United States Postal Service (USPS).