Post Offices in & near Marseilles, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Marseilles, Illinois on Washington St. Operating hours, phone number, services information, and other locations.
Address: 100 Washington St, Marseilles, IL 61341
Phone: 815-795-2148
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
