Moriches US Post Office

290 Montauk Highway
Moriches, NY 11955
Phone: (631) 878-1381
Fax: (516) 747-5876
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Brentwood US Post Office

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

Oyster Bay US Post Office

1 Shore Avenue
Oyster Bay - 11771
(516) 922-8249

Mattituck US Post Office

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

Mt. Sinai US Post Office

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

Center Moriches US Post Office

35 Railroad Avenue
Center Moriches - 11934
(631) 878-0953

Port Jefferson Station US Post Office

544 Jefferson Placeaza
Port Jefferson Station - 11776
(631) 473-2751

Mastic US Post Office

1450 Montauk Highway
Mastic - 11950
(631) 281-0275

Shelter Island US Post Office

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

Albertson US Post Office

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

Brookhaven US Post Office

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