West Islip US Post Office

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

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

Holbrook US Post Office

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

Holtsville US Post Office

162 Long Island Avenue
Holtsville - 11742
(631) 475-1761

Huntington US Post Office

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

New Hyde Park US Post Office

44 Millers Ln
New Hyde Park - 11040
(516) 616-6853

Ocean Beach US Post Office

315 Cottage Walk
Ocean Beach - 11770
(631) 583-7368

Port Jefferson Station US Post Office

544 Jefferson Placeaza
Port Jefferson Station - 11776
(631) 473-2751

Ridge US Post Office

1700 Middle Country Road
Ridge - 11961
(631) 345-6842

Sag Harbor US Post Office

21 Long Island Avenue
Sag Harbor - 11963
(631) 725-8968

West Babylon US Post Office

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