Post Offices

Post Offices in & near Washington, New Jersey. Operating hours, locations, phone/fax number, services information.

New Gretna Post Office

Post Office in New Gretna, New Jersey on Route 9. Operating hours, phone number, services information, and other locations.

Address: 5624 Route 9, New Gretna, NJ 08224
Phone: 609-296-5005
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 10:15am - 1:15pm, 1:45pm - 4:45pm
Tuesday 10:15am - 1:15pm, 1:45pm - 4:45pm
Wednesday 10:15am - 1:15pm, 1:45pm - 4:45pm
Thursday 10:15am - 1:15pm, 1:45pm - 4:45pm
Friday 10:15am - 1:15pm, 1:45pm - 4:45pm
Saturday 9:00am - 12:00pm
Sunday Closed

Lobby Hours

Monday 8:00am - 4:45pm
Tuesday 8:00am - 4:45pm
Wednesday 8:00am - 4:45pm
Thursday 8:00am - 4:45pm
Friday 8:00am - 4:45pm
Saturday 8:00am - 12:00pm
Sunday Closed

Last Collection Times

Monday 4:45pm
Tuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 12:00pm
Sunday Closed