Mt. Sinai US Post Office

457 Route 25a
Mt Sinai, NY 11766
Phone: (631) 928-0394
Fax: (516) 747-5876
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Sagaponack US Post Office

542 Sagg Main St
Sagaponack - 11962
(631) 537-9346

Wainscott US Post Office

357 Montauk Highway
Wainscott - 11975
(631) 537-8943

West Babylon US Post Office

385 Route 109
West Babylon - 11704
(631) 893-0560

Old Bethpage US Post Office

696 Old Bethpage Road
Old Bethpage - 11804
(516) 249-2915

Huntington US Post Office

55 Gerard St
Huntington - 11743
(631) 427-8777

Merrick US Post Office

2040 Merrick Road
Merrick - 11566
(516) 378-7087

Franklin Square US Post Office

867 Hempstead Turnpike
Franklin Square - 11010
(516) 437-6647

Bohemia US Post Office

200 Orville Dr
Bohemia - 11716
(631) 589-2487

Commack US Post Office

150 Veterans Memorial Highway
Commack - 11725
(631) 543-3647

Uniondale US Post Office

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