West Sayville US Post Office

12 Washington Avenue
West Sayville, NY 11796
Phone: (631) 589-6958
Fax: (516) 496-4736
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East Moriches US Post Office

3 Atlantic Avenue
East Moriches - 11940
(631) 878-0243

Upton US Post Office

2 Center St
Upton - 11973
(631) 344-2539

Mastic Beach US Post Office

110 Mastic Road
Mastic Beach - 11951
(631) 281-0359

Hewlett US Post Office

1245 Hewlett Placez
Hewlett - 11557
(516) 374-0973

Albertson US Post Office

860 Willis Avenue
Albertson - 11507
(516) 746-3512

Fishers Island US Post Office

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

Malverne US Post Office

339 Hempstead Avenue
Malverne - 11565
(516) 599-7583

Hempstead US Post Office

200 Fulton Avenue
Hempstead - 11550
(516) 560-1120

Middle Island US Post Office

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

Water Mill US Post Office

670 Montauk Highway
Water Mill - 11976
(631) 726-6310