Water Mill Post Office

670 Montauk Hwy, Water Mill, NY 11976

Contact Numbers

Phone: 631-726-6310
Fax: 631-726-6742
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours







Lobby Hours
PO Box Access Available

Monday 7:00am - 5:30pm
Tuesday 7:00am - 5:30pm
Wednesday 7:00am - 5:30pm
Thursday 7:00am - 5:30pm
Friday 7:00am - 5:30pm
Saturday 7:00am - 3:00pm
Sunday Closed

Last Collection Times

Monday 4:30pm
Tuesday 4:30pm
Wednesday 4:30pm
Thursday 4:30pm
Friday 4:30pm
Saturday 1:00pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
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 Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • 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:

Southampton
123 N Sea Rd
1.8 miles away

Bridgehampton
2322 Montauk Hwy
2.2 miles away

Sagaponack
542 Sagg Main St
3.1 miles away

Sag Harbor
21 Long Island Ave
4.4 miles away

Reviews

*Comments below are not read by postal employees. Please do not post personal information.



*By clicking Submit, you agree to our Privacy Policy & Terms of Use.



*postallocations.com is not a part of, or affiliated with, the official United States Postal Service (USPS).