Post Offices in & near Walnut, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Walnut, Illinois on N Main St. Operating hours, phone number, services information, and other locations.
Address: 104 N Main St, Walnut, IL 61376
Phone: 815-379-2111
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457