Baldwin US Post Office

2260 Grand Avenue
Baldwin, NY 11510
Phone: (516) 223-5024
Fax: (516) 223-7420
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Long Beach US Post Office

101 E Park Avenue
Long Beach - 11561
(516) 432-5484

Westhampton Beach US Post Office

170 Main St
Westhampton Beach - 11978
(631) 288-4093

East Setauket US Post Office

450 Route 25a
East Setauket - 11733
(631) 941-4005

Sea Cliff US Post Office

200 Sea Cliff Avenue
Sea Cliff - 11579
(516) 671-8258

Glen Cove US Post Office

2 Glen Cove Avenue
Glen Cove - 11542
(516) 671-7847

Holbrook US Post Office

445 Furrows Road
Holbrook - 11741
(631) 588-0226

Atlantic Beach US Post Office

2009 Park St
Atlantic Beach - 11509
(516) 239-1178

Hewlett US Post Office

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

Westhampton US Post Office

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

Islip Terrace US Post Office

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