Post Offices in & near City of Greenville, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Greenville, Illinois on W Main St. Operating hours, phone number, services information, and other locations.
Address: 300 W Main St, Greenville, IL 62246
Phone: 618-664-0145
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
