Water Mill US Post Office

670 Montauk Highway
Water Mill, NY 11976
Phone: (631) 726-6310
Fax: (516) 496-4736
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Middle Island US Post Office

780 Middle Country Road
Middle Island - 11953
(631) 205-1089

Freeport US Post Office

132 W Merrick Road
Freeport - 11520
(516) 378-6512

Westhampton Beach US Post Office

170 Main St
Westhampton Beach - 11978
(631) 288-4093

Coram US Post Office

117 Pauls Path
Coram - 11727
(631) 732-8691

Riverhead US Post Office

1210 W Main St
Riverhead - 11901
(631) 727-1019

Islip Terrace US Post Office

136 Carleton Avenue
Islip Terrace - 11752
(631) 581-7894

Lake Grove US Post Office

1001 Hawkins Avenue
Lake Grove - 11755
(631) 588-7019

Huntington Station US Post Office

888 E Jericho Turnpike
Huntington Sta - 11746
(631) 427-0594

Speonk US Post Office

323 Montauk Highway
Speonk - 11972
(631) 325-1741

Brentwood US Post Office

25 2nd Avenue
Brentwood - 11717
(631) 273-0947