Great River US Post Office

62 River Road
Great River, NY 11739
Phone: (631) 581-7680
Fax: (516) 487-2508
Visit Website

Shelter Island US Post Office

45 N Ferry Road
Shelter Island - 11964
(631) 749-1857

Cedarhurst US Post Office

124 Grove Avenue
Cedarhurst - 11516
(516) 295-1452

Islandia US Post Office

PO Box 7800
Islandia - 11760
(631) 582-7420

Uniondale US Post Office

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

Mineola US Post Office

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

Wainscott US Post Office

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

Malverne US Post Office

339 Hempstead Avenue
Malverne - 11565
(516) 599-7583

Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069

Wantagh US Post Office

3300 Park Avenue
Wantagh - 11793
(516) 785-3425

Holbrook US Post Office

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