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“I went in to have a package delivered.
Only took a few minutes.
The clerk was great. I was given a few options. I chose what I wanted. I paid and left.”
“Caseyville Post Office is the Best post office I have ever been in. Margaret the manager is amazing and super nice and helpful. 1st time ever giving and post office high remarks but Caseyville, IL with Margaret is amazing👍”
“I visited this post office for the first time today due to its great reviews. Ms. Bertha assisted me and was wonderful. She helped me with what I needed while providing service with a smile! Her great attitude and exemplary customer service did not go unnoticed! Thank you Ms. Bertha!”
“Nice people, jiffy service.
As of December 2025, their hours are Monday - Friday from 9:00am - 4:00pm, but CLOSED FOR LUNCH from 12:25pm - 1:15pm.
Saturday they are only open from 9:00am - 12:00 noon.”
“It has never failed that I go humbly into our Post Office with an unusual problem and throw myself on the mercy of their counter. It can be James or any of the staff that reassure me they've got this, and they do. Cheerfully, without making me feel like the inadequate customer I feel I am! I have always loved the postal workers, I especially love my Millstadt ones! Thank you! Merry Christmas!Penny Jestes”
“Clerk was very sweet! The kiosk was down when I went in. She did let me know they tried to fix it and ordered a new part for it. Wasn’t too long of a wait, but there was only one register open.”
“Really helpful staff. Also; good to support usps. Awesome mission serving all of USA.
Edit: yikes. Lots of Karen’s and Kevin’s in these reviews. Maybe don’t vote for people actively defunding the post office and they won’t be so stressed out to help y’all.”
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“I’ve never had any issues with this location. The staff is professional, personable and very helpful. I’ve had my same PO Box for over 10 years and I’ve never had any problems that the team didn’t resolve right away. If I could rate a 10, I would!”