Foster City Post Office

750 Alma Ln Ste 100, 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)

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 3:00pm
Sunday Closed

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

  • Money Orders (Domestic)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online

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:

Belmont
640 Masonic Way
1.5 miles away

San Mateo
1630 S Delaware St
1.7 miles away

25th Avenue
135 W 25th Ave
1.7 miles away

Saint Matthew
210 S Ellsworth Ave
2.3 miles away

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