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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Garden City US Post Office

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

East Norwich US Post Office

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

St. James US Post Office

325 Lake Avenue
St James - 11780
(631) 584-4138

Old Westbury US Post Office

223 Store Hill Road # A
Old Westbury - 11568
(516) 333-0964

Shelter Island US Post Office

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

Fair Harbor US Post Office

100 Bay Walk
Fair Harbor - 11706
(631) 583-7080

Mill Neck US Post Office

32 Frost Mill Road
Mill Neck - 11765
(516) 922-8247

Ronkonkoma US Post Office

200 Hawkins Avenue
Ronkonkoma - 11779
(631) 588-0301

Lake Grove US Post Office

1001 Hawkins Avenue
Lake Grove - 11755
(631) 588-7019

Moriches US Post Office

290 Montauk Highway
Moriches - 11955
(631) 878-1381