Post Offices in & near New Castle, Delaware. Operating hours, locations, phone/fax number, services information.
Post Office in New Castle, Delaware on Delaware St. Operating hours, phone number, services information, and other locations.
Address: 501 Delaware St, New Castle, DE 19720
Phone: 302-328-6472
Fax: 302-328-8307
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
