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 - 4:00pm
Tuesday 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 4:00pm
Tuesday 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 - 3:00pm
Tuesday 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