Farmingdale US Post Office

380 Main St
Farmingdale, NY 11735
Phone: (516) 249-1552
Fax: (516) 249-5231
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Seaford US Post Office

3575 Merrick Road
Seaford - 11783
(516) 785-3851

Blue Point US Post Office

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

Sayville US Post Office

130 Greene Avenue
Sayville - 11782
(631) 589-6963

St. James US Post Office

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

Westhampton US Post Office

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

Lawrence US Post Office

12 Bayview Avenue
Lawrence - 11559
(516) 239-2834

Glenwood Landing US Post Office

123 Glenwood Road
Glenwood Landing - 11547
(516) 676-8452

East Setauket US Post Office

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

Stony Brook US Post Office

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

North Babylon US Post Office

1196 Deer Park Avenue
North Babylon - 11703
(631) 667-4693