Brand Certified
United States Postal Service
2.0(297 reviews)
Certified by United States Postal Service • Apr 26, 2026
Business Details
401 Church St, O Fallon, MO
63366, United States
Certified by United States Postal Service • Apr 26, 2026
(800) 275-8777
Certified by United States Postal Service • Apr 26, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Apr 26, 2026
About
Certified by United States Postal Service • Apr 26, 2026
Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 401 Church St to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more
Location
Certified by United States Postal Service • Apr 26, 2026
Hours
Certified by United States Postal Service • Apr 26, 2026
Monday8:30 AM - 6:00 PM
Tuesday8:30 AM - 6:00 PM
Wednesday8:30 AM - 6:00 PM
Thursday8:30 AM - 6:00 PM
Friday8:30 AM - 6:00 PM
Saturday9:00 AM - 2:00 PM
SundayClosed
Reviews
2.0
297 reviews
5 stars
62
4 stars
9
3 stars4
2 stars
10
1 star
212
- JHJessica Harris2 days ago5.0I’m actually surprised at the rating for this post office. I have never once had a bad experience. I feel like the lines move as fast as they can. I never feel rushed when I don’t know what I’m doing. The lady that works the lobby for self service is amazingly helpful. Not to mention my postman Greg is the best.
- EGE GuidoMar 30, 20264.0Good customer service...
- JMJosie MarieMar 29, 20261.0The workers are extremely rude!!!! This older black lady with glasses just started at me and pressed her lips together when I asked her if she could print my QR code out because the self service thing was out of order. Then a different worker finally helped me out.
- ZKZac KramerMar 16, 20261.0Your package will be late and thats if they even attempt a delivery
- BWBen WolfMar 10, 20262.0Not sure why, but for some reason my mailman leaves my mailbox open 9/10 times...
Frequently Asked Questions About United States Postal Service
Can I get a passport application at this Post Office?
Yes, Thousands of Post Offices™ accept first-time passport applications for the U.S. Department of State. Most of those locations can also take your passport photo. Please complete and print your passport application form before you apply.
Is an appointment needed for passport services?
Most Post Offices that offer passport services have set hours, and you'll need to schedule an appointment using our online scheduler. We also offer limited Passport walk-in hours at select locations.
Does this location take the photo needed for passports?
For first-time passport and photo services, please make an appointment using our online scheduler.
What is the cost to take a passport photo?
The current fee for a passport photo at USPS is $15.
When does this location do walk-in passports?
We offer limited Passport walk-in hours at select locations.
Can I get a PO Box online?
Yes, you can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm. The process is quick and secure, and you'll receive instructions for completing your setup in person.
How much is a small PO Box?
PO Box prices vary by location. You can check exact pricing for your area by visiting https://www.usps.com/manage/po-boxes.htm and entering your ZIP Code.
Can you get to the PO Boxes in the lobby after hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby. Access hours may vary by location, so check with your local Post Office for specific lobby hours.
How can I get a PO Box?
You can apply for a PO Box online or in person at your local Post Office. Just bring two valid forms of ID and your completed application if applying in person. To start online, visit https://www.usps.com/manage/po-boxes.htm.
What time can I check my PO Box weekly and on weekends?
You can check your PO Box during lobby hours, which often include extended hours or 24/7 access. Weekend access may vary. Check with your local Post Office for exact times.
Brand Certified Facts from United States Postal Service
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Certified April 26, 2026Yext Knowledge Graph
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