East Islip US Post Office

11 Greenwood Avenue
East Islip, NY 11730
Phone: (631) 581-7807
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Williston Park US Post Office

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

Shelter Island US Post Office

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

Hauppauge US Post Office

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

Jamesport US Post Office

1451 Route 25
Jamesport - 11947
(631) 722-5946

West Babylon US Post Office

385 Route 109
West Babylon - 11704
(631) 893-0560

Blue Point US Post Office

141 Montauk Highway
Blue Point - 11715
(631) 363-6272

Rocky Point US Post Office

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

Bay Shore US Post Office

10 Bay Shore Avenue
Bay Shore - 11706
(631) 969-3506

Lindenhurst US Post Office

65 E Hoffman Avenue
Lindenhurst - 11757
(631) 226-6914

New Suffolk US Post Office

375 1st St
New Suffolk - 11956
(631) 734-6271