Manhasset US Post Office

28 Maple Place
Manhasset, NY 11030
Phone: (516) 627-0536
Fax: (631) 226-5599
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St. James US Post Office

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

Yaphank US Post Office

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

Baldwin US Post Office

2260 Grand Avenue
Baldwin - 11510
(516) 223-5024

Montauk US Post Office

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

Brentwood US Post Office

25 2nd Avenue
Brentwood - 11717
(631) 273-0947

Central Islip US Post Office

101 Federal Plaza
Central Islip - 11722
(631) 715-0001

Farmingville US Post Office

500 Horseblock Road
Farmingville - 11738
(631) 732-8625

New Suffolk US Post Office

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

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Copiague US Post Office

695 Marconi Blvd
Copiague - 11726
(631) 842-9084