Post Offices
Post Offices in & near Mackinaw, Illinois. Operating hours, locations, phone/fax number, services information.
Mackinaw Post Office
Post Office in Mackinaw, Illinois on S Main St. Operating hours, phone number, services information, and other locations.
Address: 110 S Main St, Mackinaw, IL 61755
Phone: 309-359-6431
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 9:00am - 11:30am, 12:30pm - 4:30pmTuesday 9:00am - 11:30am, 12:30pm - 4:30pm
Wednesday 9:00am - 11:30am, 12:30pm - 4:30pm
Thursday 9:00am - 11:30am, 12:30pm - 4:30pm
Friday 9:00am - 11:30am, 12:30pm - 4:30pm
Saturday 9:00am - 11:00am
Sunday Closed
Lobby Hours
Monday 4:00pmTuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 11:00am
Sunday Closed
Last Collection Times
Monday 9:00am - 11:30am, 12:30pm - 4:30pmTuesday 9:00am - 11:30am, 12:30pm - 4:30pm
Wednesday 9:00am - 11:30am, 12:30pm - 4:30pm
Thursday 9:00am - 11:30am, 12:30pm - 4:30pm
Friday 9:00am - 11:30am, 12:30pm - 4:30pm
Saturday 9:00am - 11:00am
Sunday Closed