Lafayette Carrier Annex Post Office

The Postal Service is classified as an essential government service, and will remain open wherever possible.

3426 Mt Diablo Blvd, Lafayette, CA 94549

Contact Numbers

Phone: 925-962-6955
Fax: 925-962-1970
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.

  • Business Line
  • Pickup Accountable Mail
  • Pickup Hold Mail

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:

3641 Mt Diablo Blvd
0.6 mile away

460 Center St
1.5 miles away

1922 Tice Valley Blvd
1.7 miles away

Walnut Creek
2070 N Broadway
2.1 miles away


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