North Baldwin US Post Office

1620 Grand Avenue
North Baldwin, NY 11510
Phone: (516) 223-5710
Fax: (516) 437-2896
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East Northport US Post Office

297 Larkfield Road
East Northport - 11731
(631) 368-5632

Stony Brook US Post Office

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

Shoreham US Post Office

69 Route 25a
Shoreham - 11786
(631) 744-3185

Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

Central Islip US Post Office

110 E Suffolk Avenue
Central Islip - 11722
(631) 234-0547

Mineola US Post Office

160 1st St
Mineola - 11501
(516) 746-1372

Water Mill US Post Office

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

Garden City US Post Office

600 Franklin Avenue
Garden City - 11530
(516) 747-2201

Sea Cliff US Post Office

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

Bayville US Post Office

251 Bayville Avenue
Bayville - 11709
(516) 628-9235