Shelter Island US Post Office

45 N Ferry Road
Shelter Island, NY 11964
Phone: (631) 749-1857
Fax: (516) 766-5845
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East Setauket US Post Office

101 Main St
Setauket - 11733
(631) 941-4042

Williston Park US Post Office

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

Fishers Island US Post Office

1 Oriental Avenue
Fishers Island - 06390
(631) 788-7835

St. James US Post Office

325 Lake Avenue
St James - 11780
(631) 584-4138

New Hyde Park US Post Office

1001 2nd Avenue
New Hyde Park - 11040
(516) 354-6024

Bethpage US Post Office

288 Grumman Road W
Bethpage - 11714
(516) 349-5000

Hewlett US Post Office

1245 Hewlett Placez
Hewlett - 11557
(516) 374-0973

Montauk US Post Office

73 S Euclid Avenue
Montauk - 11954
(631) 668-7043

Hampton US Post Office

16 Ponquogue Avenue
Hampton Bays - 11946
(631) 728-6994

Mt. Sinai US Post Office

457 Route 25a
Mt Sinai - 11766
(631) 928-0394