Oyster Bay US Post Office

1 Shore Avenue
Oyster Bay, NY 11771
Phone: (516) 922-8249
Fax: (516) 766-7585
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Brentwood US Post Office

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

St. James US Post Office

325 Lake Avenue
St James - 11780
(631) 584-4138

Mastic Beach US Post Office

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

US Post Office Processing Center

160 Duryea Road
Melville - 11747
(631) 755-2575

Glenwood Landing US Post Office

123 Glenwood Road
Glenwood Landing - 11547
(516) 676-8452

Roslyn Heights US Post Office

66 Mineola Avenue
Roslyn Heights - 11577
(516) 621-8050

Holtsville US Post Office

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

Brightwaters US Post Office

145 Orinoco Dr
Brightwaters - 11718
(631) 206-4855

Northport US Post Office

240 Main St
Northport - 11768
(631) 261-6941

Remsenburg US Post Office

137 S Country Road
Remsenburg - 11960
(631) 325-5937