Post Offices

Post Offices in & near Southampton, New York. Operating hours, locations, phone/fax number, services information.

Southampton Post Office

Post Office in Southampton, New York on N Sea Rd. Operating hours, phone number, services information, and other locations.

Address: 123 N Sea Rd, Southampton, NY 11968
Phone: 631-204-9822
Fax: 631-287-1828
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday 9:00am - 3:00pm
Sunday Closed

Lobby Hours

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 3:00pm
Sunday Closed

Last Collection Times

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday 10:00am - 1:00pm
Sunday Closed