Commack US Post Office

150 Veterans Memorial Highway
Commack, NY 11725
Phone: (631) 543-3647
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Peconic US Post Office

2575 Peconic Ln
Peconic - 11958
(631) 765-9348

Shelter Island US Post Office

45 N Ferry Road
Shelter Island - 11964
(631) 749-1857

Centerport US Post Office

434 E Main St
Centerport - 11721
(631) 261-6918

Water Mill US Post Office

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

Hauppauge US Post Office

960 Wheeler Road
Hauppauge - 11788
(631) 360-6712

Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069

Aquebogue US Post Office

212 Linda Avenue
Aquebogue - 11931
(631) 722-4368

Glen Cove US Post Office

2 Glen Cove Avenue
Glen Cove - 11542
(516) 671-7847

Great Neck US Post Office

1 Welwyn Road
Great Neck - 11021
(516) 482-5013

Jamesport US Post Office

70 2nd St
South Jamesport - 11970
(631) 722-4317