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Postal Mariner Post Office
221 Main St, Seal Beach, CA 90740
Phone: 562-598-6915
Fax: 562-598-8785
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
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
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
Orange County