West Babylon US Post Office

385 Route 109
West Babylon, NY 11704
Phone: (631) 893-0560
Fax: (516) 496-4736
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Yaphank US Post Office

5 E Main St
Yaphank - 11980
(631) 345-6829

Freeport US Post Office

132 W Merrick Road
Freeport - 11520
(516) 378-6512

Medford US Post Office

1905 Route 112
Medford - 11763
(631) 475-8273

Brookhaven US Post Office

2512 Montauk Highway
Brookhaven - 11719
(631) 286-1591

Riverhead US Post Office

1210 W Main St
Riverhead - 11901
(631) 727-1019

Seaford US Post Office

3575 Merrick Road
Seaford - 11783
(516) 785-3851

Rockville US Post Office

250 Merrick Road
Rockville Centre - 11570
(516) 766-5749

Fishers Island US Post Office

1 Oriental Avenue
Fishers Island - 06390
(631) 788-7835

Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

Southold US Post Office

710 Traveler St
Southold - 11971
(631) 765-4027