Massapequa US Post Office

80 Atlantic Avenue
Oceanside, NY 11572
Other Locations
Phone: (516) 766-5829
Fax: (516) 766-7585
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Uniondale US Post Office

1000 Front St
Uniondale - 11553
(516) 481-8245

East Hampton US Post Office

291 Springs Fireplace Road
East Hampton - 11937
(631) 324-0790

East Meadow US Post Office

446 E Meadow Avenue
East Meadow - 11554
(516) 794-4509

East Islip US Post Office

11 Greenwood Avenue
East Islip - 11730
(631) 581-7807

Great Neck US Post Office

661 Middle Neck Road
Great Neck - 11023
(516) 829-6315

Eastport US Post Office

24 Eastport Manor Road
Eastport - 11941
(631) 325-1798

Fair Harbor US Post Office

100 Bay Walk
Fair Harbor - 11706
(631) 583-7080

Sayville US Post Office

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

Jamesport US Post Office

1451 Route 25
Jamesport - 11947
(631) 722-5946

Lake Grove US Post Office

1001 Hawkins Avenue
Lake Grove - 11755
(631) 588-7019