Post Offices in & near South Wilmington, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in South Wilmington, Illinois on 3rd Ave. Operating hours, phone number, services information, and other locations.
Address: 280 3rd Ave, South Wilmington, IL 60474
Phone: 815-237-2646
Fax: 815-237-2646
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
