Alton Post Office
Alton, IL 62002
*The USPS does change hours of operation, locations and has holidays that they observe. We strive to keep the most up-to-date information on post offices in Alton. For more infomation on post offices in Alton or around this area, please visit the official USPS website.
Alton Post Office Additional Information:
Alton Post Office HoursMon-Fri 8:30am-6:00pm Sat 9:00am-3:00pm Sun closed
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