Northport US Post Office

240 Main St
Northport, NY 11768
Phone: (631) 261-6941
Fax: (516) 437-2896
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Selden US Post Office

109 College Placez
Selden - 11784
(631) 732-8627

Port Jefferson US Post Office

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

West Babylon US Post Office

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

Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069

Bellmore US Post Office

2611 Merrick Road
Bellmore - 11710
(516) 781-0579

Sound Beach US Post Office

25 New York Avenue
Sound Beach - 11789
(631) 744-0837

Middle Island US Post Office

780 Middle Country Road
Middle Island - 11953
(631) 205-1089

Islandia US Post Office

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

Atlantic Beach US Post Office

2009 Park St
Atlantic Beach - 11509
(516) 239-1178

New Hyde Park US Post Office

1568 Union Turnpike
New Hyde Park - 11040
(516) 616-6893