Central Islip US Post Office

110 E Suffolk Avenue
Central Islip, NY 11722
Phone: (631) 234-0547
Fax: (631) 234-7429
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Community Offices / Post Offices

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Amityville US Post Office

77 Ireland Place
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631-264-3532
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Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069
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East Rockaway US Post Office

10 Main St
East Rockaway - 11518
(516) 599-2157
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Elmont US Post Office

798 Meacham Avenue
Elmont - 11003
(516) 887-6247
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Glenwood Landing US Post Office

123 Glenwood Road
Glenwood Landing - 11547
(516) 676-8452
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Islip US Post Office

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Islip - 11751
(631) 581-7931
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Mattituck US Post Office

140 Love Ln
Mattituck - 11952
(631) 298-1364
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North Babylon US Post Office

1196 Deer Park Avenue
North Babylon - 11703
(631) 667-4693
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Port Washington US Post Office

1051 Port Washington Blvd
Port Washington - 11050
(516) 883-0754
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Water Mill US Post Office

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