Massapequa US Post Office

80 Atlantic Avenue
Oceanside, NY 11572
Other Locations
Phone: (516) 766-5829
Fax: (516) 766-7585
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Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069

Shirely US Post Office

800 Montauk Highway # 1
Shirley - 11967
(631) 281-0479

New Suffolk US Post Office

375 1st St
New Suffolk - 11956
(631) 734-6271

Yaphank US Post Office

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

Holbrook US Post Office

445 Furrows Road
Holbrook - 11741
(631) 588-0226

Wainscott US Post Office

357 Montauk Highway
Wainscott - 11975
(631) 537-8943

Mastic Beach US Post Office

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

Glen Cove US Post Office

2 Glen Cove Avenue
Glen Cove - 11542
(516) 671-7847

Mattituck US Post Office

140 Love Ln
Mattituck - 11952
(631) 298-1364

Ronkonkoma US Post Office

200 Hawkins Avenue
Ronkonkoma - 11779
(631) 588-0301