Post Offices in & near New Castle, Colorado. Operating hours, locations, phone/fax number, services information.
Post Office in New Castle, Colorado on W Main St. Operating hours, phone number, services information, and other locations.
Address: 112 W Main St, New Castle, CO 81647
Phone: 970-984-2213
Fax: 970-984-3808
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
