Fairfax Post Office

773 Center Blvd, Fairfax, CA 94930

Contact Numbers

Phone: 415-453-3146
Fax: 415-453-7765
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 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 11:00am
Sunday Closed

Bulk Mail Acceptance Hours

Monday 11:30am - 3:00pm
Tuesday 11:30am - 3:00pm
Wednesday 11:30am - 3:00pm
Thursday 11:30am - 3:00pm
Friday 11:30am - 3:00pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Bulk Mail Acceptance
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot 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:

San Anselmo
121 San Anselmo Ave
1.1 miles away

Terra Linda
603 Del Ganado Rd
1.5 miles away

1 Ross Cmn
1.5 miles away

822 College Ave
2.0 miles away


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Dear San Anselmo, CA Postmaster: Since Sonia has left as our regular carrier, I am very upset with our "new" mail carriers, who, despite several verbal and very polite notes will not "Return the Red Flag Down" after delivery. It is, after all, a simple courtesy to let us know mail has been delivered in return for our raising the red flag to let our carrier know there is mail to be picked up. I am partially visually disabled but I can see if the flag is down once mail has been delivered. Otherwise, I am forced to walk up and down my driveway several times a day to see if I have mail or not. I do not know whom I have to contact to correct this slight but I intend to find out who is responsible for such callous behavior on the part of our local mail carriers. Thank you for your attention to this matter, Noel Robertson

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