East Setauket US Post Office

101 Main St
Setauket, NY 11733
Phone: (631) 941-4042
Fax: (516) 766-5845
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Plainview US Post Office

1662 Old Country Road
Plainview - 11803
(516) 845-7162

Rocky Point US Post Office

346 Route 25a # 84
Rocky Point - 11778
(631) 744-0635

East Hampton US Post Office

291 Springs Fireplace Road
East Hampton - 11937
(631) 324-0790

Water Mill US Post Office

670 Montauk Highway
Water Mill - 11976
(631) 726-6310

Cedarhurst US Post Office

124 Grove Avenue
Cedarhurst - 11516
(516) 295-1452

Williston Park US Post Office

446 Willis Avenue
Williston Park - 11596
(516) 746-3247

Ronkonkoma US Post Office

200 Hawkins Avenue
Ronkonkoma - 11779
(631) 588-0301

Hempstead US Post Office

200 Fulton Avenue
Hempstead - 11550
(516) 560-1120

Laurel US Post Office

2168 Main Road
Laurel - 11948
(631) 298-1672

Fair Harbor US Post Office

100 Bay Walk
Fair Harbor - 11706
(631) 583-7080