Port Jefferson Post Office

407 E Main St Ste 17, Port Jefferson, NY 11777

*The Post Office will be closed July 4th for Independence Day

Contact Numbers:

Phone: 631-473-1065
Fax: 631-928-4632
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Monday-Friday 10:00am - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

Pickup Services Hours

Monday-Friday 10:00am - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Delivery Time

Monday-Saturday 11:00am
Sunday Closed

Last Collection Times

Monday-Friday 4:30pm
Saturday 1:00pm
Sunday Closed

Carrier Facility Hours

Monday-Friday 10:00am - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 10:00am - 4:00pm
Saturday 9:00am - 12:00pm
Sunday Closed

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

  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Port Jefferson Station
544 Jefferson Plz
0.9 mile away

East Setauket
450 Route 25a
1.8 miles away

Mount Sinai
457 Route 25a
1.9 miles away

Setauket
101 Main St
1.9 miles away

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