Levittown US Post Office

180 Gardiners Avenue
Levittown, NY 11756
Phone: (516) 735-7343
Fax: (516) 735-7319
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Brentwood US Post Office

25 2nd Avenue
Brentwood - 11717
(631) 273-0947

Melville US Post Office

718 Walt Whitman Road
Melville - 11747
(631) 421-0726

Garden City US Post Office

830 Stewart Avenue
Garden City - 11599
(516) 228-7502

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

Mt. Sinai US Post Office

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

Lawrence US Post Office

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

Seaford US Post Office

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

Woodmere US Post Office

132 Franklin Place
Woodmere - 11598
(516) 374-3776

Riverhead US Post Office

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

Port Jefferson US Post Office

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