Seabrook Post Office

19 Main St, Seabrook, NH 03874

Contact Numbers

Phone: 603-474-5950
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 5:30pm
Tuesday 6:00am - 5:30pm
Wednesday 6:00am - 5:30pm
Thursday 6:00am - 5:30pm
Friday 6:00am - 5:30pm
Saturday 6:00am - 1:00pm
Sunday Closed

Last Collection Times

Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 12:45pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:30am - 3:00pm
Tuesday 9:30am - 3:00pm
Wednesday 9:30am - 3:00pm
Thursday 9:30am - 3:00pm
Friday 9:30am - 3:00pm
Saturday 9:30am - 11:00am
Sunday Closed

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

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • 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:

6 Elm St Unit C
1.5 miles away

Hampton Falls
2 Exeter Rd
1.6 miles away

200 Main St
2.6 miles away

61 Pleasant St
2.7 miles away


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Missing at least 2 important pieces of mail this week. Also 2 other pieces were delivered today to my neighbors house.


What the heck is going on with the crummy Postal service or lack there of in Seabrook, NH. They put mail in our box a month after we moved with a correct forwarding Address instructions handed to the office workers twice. Called wit NO answer during “open” hours No wonder they got Covid because the workers behind the desk were NOT wearing masks and neither were many customers who waited in line crowding together . Sorry they got sick but those who defy scientific advice to wear masks are spreading their death germs to others!! Merry Christmas. Maybe we’ll get out mail delivered to the correct address by Easter ! Happy New Year


Brush up on your science....masks don't work & neither does the jab, but maybe it's time for your gazllionth booster🤷Watch out for that SADS.
• Replied to Mill Lane


Just got off the phone with a postal worker at the Seabrook location. The only comment I have to make is that whoever this man was, needs to work on his phone etiquette skills. I remember saying “thank you” and the guy slammed down the phone without saying a word. Rude. I don’t care who you are or where you work, if you are the first point of contact for a business, you represent that business respectfully.


Can someone please tell me why my social security check wasn't in my mailbox on Fri. when the 1st is on Sunday? Didn't come today either. This is not the first time this has happened and I know that it's the post office and not social security office. Are they that lazy?


This is the worst post office ever. They constantly refuse to scan labels when you drop off packages for shipping, so your buyers then complain cause they can't track their packages. They are ruining my online business. So now I drive to the next town to ship my packages, all I want is for them to do their job. USPS in Seabrook NH SUCKS!!!


Have you tried doing the shipping at home on a computer? It is so much easier and cheaper. And the bonus is you have the tracking number right there. Good luck.
• Replied to Sandra Emmions

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