Belmont Post Office

640 Masonic Way, Belmont, CA 94002

Contact Numbers

Phone: 650-591-9588
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 6:00pm
Tuesday 6:00pm
Wednesday 6:00pm
Thursday 6:00pm
Friday 6:00pm
Saturday 5:00pm
Sunday Closed

Passport Walk-In Hours
Walk-In is not currently available. Appointments may be available during walk-in hours.

Monday Closed
Tuesday Closed
Wednesday Closed
Thursday 9:00am - 12:00pm
Friday Closed
Saturday Closed
Sunday Closed

Passport Appointment Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*Appointments are required outside of walk-in hours to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 10:00am - 2:00pm, 3:00pm - 3:30pm
Tuesday 10:00am - 2:00pm, 3:00pm - 3:30pm
Wednesday 10:00am - 2:00pm, 3:00pm - 3:30pm
Thursday 10:00am - 2:00pm, 3:00pm - 3:30pm
Friday 10:00am - 2:00pm, 3:00pm - 3:30pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Philatelic Services
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Street Parking
  • Passport Appointment Hours

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:

San Carlos
809 Laurel St
1.0 miles away

Foster City New
750 Alma Ln Ste 100
1.5 miles away

25th Avenue
135 W 25th Ave
1.6 miles away

San Mateo
1630 S Delaware St
1.9 miles away


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I sent two emails to the postmaster listed on their website - - and they bounced back. I just called and no one answers the phone.


Everything is run on Filipino Time. Lower your expectations.


Post offices don't pick up the phone (yes, intentionally). You have to go there and make appointment in person, the first one available is usually in 2-3 weeks.


It would be very helpful if you could add some additional information on your website regarding exactly how to make an appointment for passport services." *This Post Office requires you to make an appointment to apply for or renew US Passports" does not shed any light on how I can make an appointment.Just a suggestion here. I'm going to assuming that I have to call in order to make the appointment.


I recently visited the Belmont post office at 640 Masonic Way and was helped by GRACIE. She was extremely helpful and professional and took the time to help me fill out a customs form that was somewhat confusing. Just wanted to say THANK YOU Gracie for your help!

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