Waterloo Post Office

305 E 3rd St
Waterloo, IL 62298
(618) 939-7317
(618) 939-7317
Hours of Operation: View Hours

View the Waterloo Post Office hours along with contact information, and more to get your post office needs done in Waterloo, IL.

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What are the hours for the Waterloo Post Office?

Waterloo Post Office Hours

Mon-Fri 8:30am-5:00pm Sat 8:30am-11:30am Sun closed

Waterloo Post Office Additional Information:

Located in St. Clair County

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