Port Costa Post Office

3 Canyon Lake Dr, Port Costa, CA 94569

Contact Numbers

Phone: 510-787-2980
Fax: 510-874-8544
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 10:00am - 2:00pm
Tuesday 10:00am - 2:00pm
Wednesday 10:00am - 2:00pm
Thursday 10:00am - 2:00pm
Friday 10:00am - 2:00pm
Saturday 8:00am - 12:00pm
Sunday Closed

Last Collection Times

Monday 2:00pm
Tuesday 2:00pm
Wednesday 2:00pm
Thursday 2:00pm
Friday 2:00pm
Saturday 12:00pm
Sunday Closed

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

  • Burial Flags
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money

Visit our Links Page for links to 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:

Benicia
290 E L St
1.3 miles away

Crockett
695 Pomona St
1.4 miles away

Court
815 Court St
2.3 miles away

Martinez
4100 Alhambra Ave
3.0 miles away

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