Post Offices
Post Offices in & near White Pines, Illinois. Operating hours, locations, phone/fax number, services information.
Osweg Post Office
Post Office in Oswego, Illinois on S Madison St. Operating hours, phone number, services information, and other locations.
Address: 26 S Madison St, Oswego, IL 60543
Phone: 630-554-8410
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 6:00pmTuesday 8:30am - 6:00pm
Wednesday 8:30am - 6:00pm
Thursday 8:30am - 6:00pm
Friday 8:30am - 6:00pm
Saturday 8:30am - 3:00pm
Sunday Closed
Lobby Hours
Monday 5:00pmTuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:00pm
Sunday Closed
Last Collection Times
Monday 10:00am - 3:00pmTuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday Closed
Sunday Closed