Post Offices in & near Caseyville, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Caseyville, Illinois on S Long St. Operating hours, phone number, services information, and other locations.
Address: 113 S Long St, Caseyville, IL 62232
Phone: 618-344-4594
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
