Sagaponack US Post Office

542 Sagg Main St
Sagaponack, NY 11962
Phone: (631) 537-9346
Fax: (516) 766-5845
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Central Islip US Post Office

101 Federal Plaza
Central Islip - 11722
(631) 715-0001

Cutchogue US Post Office

240 Griffing St
Cutchogue - 11935
(631) 734-6032

Fair Harbor US Post Office

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

Glen Head US Post Office

240 Glen Head Road # 1
Glen Head - 11545
(516) 676-8465

Holtsville US Post Office

162 Long Island Avenue
Holtsville - 11742
(631) 475-1761

Middle Island US Post Office

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

Oyster Bay US Post Office

1 Shore Avenue
Oyster Bay - 11771
(516) 922-8249

Quogue US Post Office

6 Midland St
Quogue - 11959
(631) 653-6427

Stony Brook US Post Office

129 Main St
Stony Brook - 11790
(631) 751-5691

Wyandanch US Post Office

1569 Straight Path
Wyandanch - 11798
(631) 643-3914