Mariner Post Office - near me location, phone, and lobby, Retail, last collection open hours at today or at Saturday, Sunday



221 Main St, Seal Beach, CA 90740

Contact Numbers

Phone: 562-598-6915
Fax: 562-598-8785
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 6:00am - 7:00pm
Tuesday 6:00am - 7:00pm
Wednesday 6:00am - 7:00pm
Thursday 6:00am - 7:00pm
Friday 6:00am - 7:00pm
Saturday 6:00am - 7:00pm
Sunday Closed

Last Collection Times

Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 2:00pm
Sunday Closed

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





  • Business Line
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street 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:

Surfside
B89 Surfside Ave
1.0 miles away

Seal Beach
2929 Westminster Ave
1.2 miles away

Leisure World
13580 Saint Andrews Dr
1.3 miles away

Belmont Shore Postal Store
5050 E 2nd St
1.4 miles away

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