Islandia US Post Office

PO Box 7800
Islandia, NY 11760
Phone: (631) 582-7420
Fax: (516) 487-2508
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Glen Cove US Post Office

2 Glen Cove Avenue
Glen Cove - 11542
(516) 671-7847

Northport US Post Office

240 Main St
Northport - 11768
(631) 261-6941

Long Beach US Post Office

101 E Park Avenue
Long Beach - 11561
(516) 432-5484

Port Jefferson US Post Office

407 E Main St # 17
Port Jefferson - 11777
(631) 473-1065

Mastic Beach US Post Office

110 Mastic Road
Mastic Beach - 11951
(631) 281-0359

Deer Park US Post Office

375 Carlls Path
Deer Park - 11729
(631) 667-6490

Plandome US Post Office

155 Stonytown Road
Plandome - 11030
(516) 627-3747

Bayport US Post Office

850 Montauk Highway
Bayport - 11705
(631) 472-7396

Garden City US Post Office

830 Stewart Avenue
Garden City - 11599
(516) 228-7502

Huntington US Post Office

16 New York Avenue
Huntington - 11743
(631) 423-5880