Post Offices

Post Offices in & near Hainesville, Illinois. Operating hours, locations, phone/fax number, services information.

Grayslak Post Office

Post Office in Grayslake, Illinois on Commerce Dr. Operating hours, phone number, services information, and other locations.

Address: 75 Commerce Dr, Grayslake, IL 60030
Phone: 847-223-2787
Fax: 847-223-0571
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 8:00am - 6:00pm
Tuesday 8:00am - 6:00pm
Wednesday 8:00am - 6:00pm
Thursday 8:00am - 6:00pm
Friday 8:00am - 6:00pm
Saturday 9:00am - 2:00pm
Sunday Closed

Lobby Hours

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 4:30pm
Sunday Closed

Last Collection Times

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday 10:00am - 12:00pm
Sunday Closed