Jamesport US Post Office

70 2nd St
South Jamesport, NY 11970
Phone: (631) 722-4317
Fax: (631) 360-0532
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Bayport US Post Office

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

Jamesport US Post Office

1451 Route 25
Jamesport - 11947
(631) 722-5946

Mt. Sinai US Post Office

457 Route 25a
Mt Sinai - 11766
(631) 928-0394

New Hyde Park US Post Office

2038 Hillside Avenue
New Hyde Park - 11040
(516) 354-5685

Ridge US Post Office

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

Ronkonkoma US Post Office

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

Stony Brook US Post Office

129 Main St
Stony Brook - 11790
(631) 751-5691

Valley Stream US Post Office

111 S Franklin Avenue
Valley Stream - 11580
(516) 825-8739

Westhampton US Post Office

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

Westhampton Beach US Post Office

170 Main St
Westhampton Beach - 11978
(631) 288-4093