Post Offices
Post Offices in & near Little Rock, Illinois. Operating hours, locations, phone/fax number, services information.
Big Rock Post Office
Post Office in Big Rock, Illinois on E 1st St. Operating hours, phone number, services information, and other locations.
Address: 100 E 1st St, Big Rock, IL 60511
Phone: 630-556-3177
Fax: 630-556-4776
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:00am - 12:30pm, 1:30pm - 4:30pmTuesday 8:00am - 12:30pm, 1:30pm - 4:30pm
Wednesday 8:00am - 12:30pm, 1:30pm - 4:30pm
Thursday 8:00am - 12:30pm, 1:30pm - 4:30pm
Friday 8:00am - 12:30pm, 1:30pm - 4:30pm
Saturday 8:00am - 11:00am
Sunday Closed
Lobby Hours
Monday 4:45pmTuesday 4:45pm
Wednesday 4:45pm
Thursday 4:45pm
Friday 4:45pm
Saturday 11:45am
Sunday Closed
Last Collection Times
Monday 9:15am - 12:00pm, 1:30pm - 3:45pmTuesday 9:15am - 12:00pm, 1:30pm - 3:45pm
Wednesday 9:15am - 12:00pm, 1:30pm - 3:45pm
Thursday 9:15am - 12:00pm, 1:30pm - 3:45pm
Friday 9:15am - 12:00pm, 1:30pm - 3:45pm
Saturday Closed
Sunday Closed