Jamesport US Post Office

1451 Route 25
Jamesport, NY 11947
Phone: (631) 722-5946
Fax: (516) 487-2508
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Upton US Post Office

2 Center St
Upton - 11973
(631) 344-2539

Yaphank US Post Office

5 E Main St
Yaphank - 11980
(631) 345-6829

Mill Neck US Post Office

32 Frost Mill Road
Mill Neck - 11765
(516) 922-8247

Amityville US Post Office

77 Ireland Place
Amityville - 11701
631-264-3532

Elmont US Post Office

260 Elmont Road
Elmont - 11003
(516) 354-5947

Islip Terrace US Post Office

136 Carleton Avenue
Islip Terrace - 11752
(631) 581-7894

Stony Brook US Post Office

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

Floral Park US Post Office

35 Tulip Avenue
Floral Park - 11001
(516) 616-5184

Port Washington US Post Office

1051 Port Washington Blvd
Port Washington - 11050
(516) 883-0754

Bay Shore US Post Office

1314 5th Avenue
Bay Shore - 11706
(631) 969-3504