Copiague US Post Office

695 Marconi Blvd
Copiague, NY 11726
Phone: (631) 842-9084
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Farmingville US Post Office

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

Blue Point US Post Office

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

Speonk US Post Office

323 Montauk Highway
Speonk - 11972
(631) 325-1741

Westhampton US Post Office

408 Mill Road
Westhampton - 11977
(631) 288-4081

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

East Marion US Post Office

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

Smithtown US Post Office

25 Route 111
Smithtown - 11787
(631) 360-6709

Greenvale US Post Office

37 Northern Blvd
Greenvale - 11548
(516) 621-7163

Elmont US Post Office

778 Elmont Road
Elmont - 11003
(516) 285-4078

Plandome US Post Office

155 Stonytown Road
Plandome - 11030
(516) 627-3747