Sea Cliff US Post Office

200 Sea Cliff Avenue
Sea Cliff, NY 11579
Phone: (516) 671-8258
Fax: (516) 766-5845
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West Babylon US Post Office

617 W Montauk Highway
West Babylon - 11704
(631) 422-2276

Glen Head US Post Office

240 Glen Head Road # 1
Glen Head - 11545
(516) 676-8465

Westhampton US Post Office

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

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

Farmingville US Post Office

500 Horseblock Road
Farmingville - 11738
(631) 732-8625

Shoreham US Post Office

69 Route 25a
Shoreham - 11786
(631) 744-3185

Sayville US Post Office

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

Great River US Post Office

62 River Road
Great River - 11739
(631) 581-7680

Bellport US Post Office

26 Station Road
Bellport - 11713
(631) 286-8561

East Norwich US Post Office

1001 Oyster Bay Road
East Norwich - 11732
(516) 922-8283