West Islip US Post Office

480 Union Blvd
West Islip, NY 11795
Phone: (631) 669-5157
Fax: (516) 496-4736
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Islip Terrace US Post Office

136 Carleton Avenue
Islip Terrace - 11752
(631) 581-7894

Wainscott US Post Office

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

Jericho US Post Office

425 N Broadway
Jericho - 11753
(516) 681-6248

Westhampton US Post Office

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

Islandia US Post Office

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

Center Moriches US Post Office

35 Railroad Avenue
Center Moriches - 11934
(631) 878-0953

Miller Placeace US Post Office

47 Echo Avenue
Miller Placeace - 11764
(631) 473-8134

West Babylon US Post Office

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

Aquebogue US Post Office

212 Linda Avenue
Aquebogue - 11931
(631) 722-4368

Old Westbury US Post Office

1 Store Hill Road # A
Old Westbury - 11568
(516) 626-5247