Post Offices in & near Mill Creek, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Millcreek, Illinois on Walnut St. Operating hours, phone number, services information, and other locations.
Address: 60 Walnut St, Millcreek, IL 62961
Phone: 618-747-2410
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
