Centerport Post Office

434 E Main St, Centerport, NY 11721

Contact Numbers

Phone: 631-261-6918
Fax: 631-757-6784
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 5:15pm
Tuesday 6:00am - 5:15pm
Wednesday 6:00am - 5:15pm
Thursday 6:00am - 5:15pm
Friday 6:00am - 5:15pm
Saturday 6:00am - 2:45pm
Sunday Closed

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 1:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 10:00am - 1:00pm
Tuesday 10:00am - 1:00pm
Wednesday 10:00am - 1:00pm
Thursday 10:00am - 1:00pm
Friday 10:00am - 1:00pm
Saturday Closed
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
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Packaged Stamps
  • 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:

55 Broadway
0.7 mile away

240 Main St
1.1 miles away

16 New York Ave
1.8 miles away

East Northport
297 Larkfield Rd
2.0 miles away


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Dear Sir/Madam, Please be advised that there are two package that was sent from Taiwan on March 28, 2023. Tracking numbers -- EG010695041TW According to the latest update, the items are being processed to JAMAICA NY INTERNATIONAL DISTRIBUTION CENTER on April 23, 2023 at 4:07 pm. Please note that it has been over 20 days since the packages were sent. I would greatly appreciate if you can check the status of the delivery and advise me when I can expect the delivery. Thank you for your cooperation in this matter. Very truly, Rosalynn Chang


Today, we had a issue with a shattered glass mat, delivered in a damaged shipping box. I called the P.O. and spoke with Denice. Denice understood my issue and promptly took action to resolve part of the issue allowing me to follow up with the vender. Resolved. Thank you, Denice.


Just wanted to commend the staff at the Centerport Post Office for their professionalism during these past several months of COVID-19 crisis. To a person, they have all demonstrated competence, unfailing courtesy, and a healthy dose of good humor in circumstances which can easily be described as daunting. As I have told them many times while I am physically in their presence, they represent the most visible aspect of my government at work.


We’ve been a Centerport resident since 1977. Not once has there been anyone but nice employees working at the post office. However, over the past couple of weeks I‘ve encountered one new to this post office employee who is rude and very unfriendly. She doesn’t smile and is very curt with her answers. The name on her name tag says Michelle. Several of our friends in Centerport have said the same thing, so I’m writing for all who share the opinion. I understand that Roddy moved to Virginia and he is greatly missed. Please if you can, adjust this woman’s attitude or replace her! Thank you.

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