USPS Location
- Water Mill
670 Montauk Hwy, Water Mill, NY 11976
631-726-6310
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, Global Express Guaranteed, Money Orders (Domestic), Money Orders (Inquiry), Money Orders (International), PO Box Online, Packaged Stamps, Pickup Accountable Mail, Pickup Hold Mail, Priority Mail International