Post Offices

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

Alton Squar Post Office

Alton Square Post Office in Alton, Illinois on Alton Sq. Operating hours, phone number, services information, and other locations.

Address: 117 Alton Sq, Alton, IL 62002
Phone: 618-463-4728
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

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

Lobby Hours

Monday 7:00am - 9:00pm
Tuesday 7:00am - 9:00pm
Wednesday 7:00am - 9:00pm
Thursday 7:00am - 9:00pm
Friday 7:00am - 9:00pm
Saturday 7:00am - 9:00pm
Sunday 12:00pm - 6:00pm

Last Collection Times

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