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