Syosset US Post Office

40 Queens St
Syosset, NY 11791
Phone: (516) 921-0746
Fax: (516) 496-4736
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Shelter Island US Post Office

45 N Ferry Road
Shelter Island - 11964
(631) 749-1857

Moriches US Post Office

290 Montauk Highway
Moriches - 11955
(631) 878-1381

Port Washington US Post Office

1051 Port Washington Blvd
Port Washington - 11050
(516) 883-0754

Lawrence US Post Office

12 Bayview Avenue
Lawrence - 11559
(516) 239-2834

North Baldwin US Post Office

1620 Grand Avenue
North Baldwin - 11510
(516) 223-5710

Holtsville US Post Office

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

Shoreham US Post Office

69 Route 25a
Shoreham - 11786
(631) 744-3185

Calverton US Post Office

3690 Middle Country Road
Calverton - 11933
(631) 727-0067

Garden City US Post Office

630 Old Country Road # 530
Garden City - 11530
(516) 746-1394

Brookhaven US Post Office

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