Post Offices
Post Offices in & near Williamsville, Illinois. Operating hours, locations, phone/fax number, services information.
Williamsvill Post Office
Post Office in Williamsville, Illinois on E Main St. Operating hours, phone number, services information, and other locations.
Address: 100 E Main St, Williamsville, IL 62693
Phone: 217-566-3651
Fax: 217-566-2153
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 9:00am - 12:00pm, 1:00pm - 4:00pmTuesday 9:00am - 12:00pm, 1:00pm - 4:00pm
Wednesday 9:00am - 12:00pm, 1:00pm - 4:00pm
Thursday 9:00am - 12:00pm, 1:00pm - 4:00pm
Friday 9:00am - 12:00pm, 1:00pm - 4:00pm
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 - 12:00pm, 1:00pm - 3:00pmTuesday 9:00am - 12:00pm, 1:00pm - 3:00pm
Wednesday 9:00am - 12:00pm, 1:00pm - 3:00pm
Thursday 9:00am - 12:00pm, 1:00pm - 3:00pm
Friday 9:00am - 12:00pm, 1:00pm - 3:00pm
Saturday Closed
Sunday Closed