Post Offices in & near Clay City, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Clay City, Illinois on S Main St. Operating hours, phone number, services information, and other locations.
Address: 332 S Main St, Clay City, IL 62824
Phone: 618-676-1242
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457