Certified by United States Postal Service • Mar 01, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 18 W Main 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 • Mar 01, 2026
Certified by United States Postal Service • Mar 01, 2026
Reviews
2.4
32 reviews
5 stars
6
4 stars
5
3 stars
1
2 stars
5
1 star
15
AV
Amanda “Mandy” Votrian
Jan 8, 2026
5.0
Marcella has always helped me so much each time I go in
NG
Noel Grabell
Nov 11, 2021
5.0
I use the Mascoutah post office on a daily basis for my business. I appreciate their customer service and I always know my packages are taken care of. Thank you for your service!!
JG
jennifer george
Feb 10, 2017
3.0
I received a notification that my package was left at the front door or near the front porch. My mailbox is at my front door with a small porch. No package. I called the post office. As the phone is ringing, I check my carport which is on the far side of the house, and found the package. Right then a lady answered and I said oh I'm sorry, I got a notification that my package was at the front door and it wasnt, but I just found it at my back door. I laughed and said so sorry again and while I was talking, she hung up on me. That was rude and unprofessional. Why was hanging up on me necessary? No ok, no goodbye, no nothing. Just hung up on me.
One for horrible phone etiquette and 5 for Mail carrier always being cautious and careful with our Mail. Making the rating a 3.
SW
S Weldon
Dec 13, 2013
2.0
I have been in to the post office a total of 4 times... Of those 4 times I had a RUDE person twice, an indifferent person once and and great person once. I will say the one person that was indifferent wasn't exactly friendly but she did let my 5 y/o daughter, whom was having a potty emergency, go where she was unauthorized and relieve herself.... I guess she figured a 5 y/o wasn't too big of a threat. But I will say that our mail has been very sporadic. Somedays we go without mail at all... And that NEVER happens. This last almost 2 weeks has been REALLY bad. We have a very nice mail lady but I guess something happened to her or she is on vacation and there hasn't been a regular replacement. Mail usually comes around noon and somedays it hasn't come until 5 or doesn't come at all... I had a package that was rerouted by USPS and gauranteed to me by tues and it is not fri and I sold the item on ebay and now I will be late and risk bad rating for shipping it off since I haven't gotten it. Tracking says it has been at the local station for 3 days. SOOOOO frustrating! THEY NEED TO GET IT TOGETHER!!!
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?
What time can I check my PO Box weekly and on weekends?
What services can I find at the United States Postal Service located at 18 W Main St?
You can send mail and packages, purchase money orders, rent Post Office boxes, apply for passports, buy gift cards, and more at the 18 W Main St USPS location.
Can I apply for a first-time U.S. passport at this USPS location?
Yes, this Post Office accepts first-time passport applications and also offers passport photo services by appointment. Be sure to complete and print your passport application form before applying.
Do I need an appointment to get passport services at the Mascoutah Post Office?
Most passport services require you to schedule an appointment online, though limited walk-in passport hours are available at select locations.
What are the operating hours for this United States Postal Service location?
The USPS at 18 W Main St is open Monday to Friday from 8:30 AM to 5:00 PM, Saturdays from 8:30 AM to 11:00 AM, and closed on Sundays.
How can I rent a PO Box at this USPS location?
You can check availability and reserve a PO Box online or apply in person at the Post Office with two forms of ID. Visit the USPS website's PO Box management page for details.
Are my PO Box lobby access hours 24/7 at this location?
Most USPS locations, including this one, offer 24/7 access to PO Boxes in the lobby, but access hours may vary. Contact the local Post Office to confirm specific lobby hours.
What nearby places can I visit when I come to the United States Postal Service at 18 W Main St?
Nearby you can visit several post offices like the US Post Office and Mascoutah Post Office, enjoy a meal at Mascoutah Steak House or Camino Real Mexican Restaurant, or stop by the Mascoutah Public Library for some reading.
Is there a local farmers market near the USPS at 18 W Main St?
Yes, the Mascoutah Wee Market is nearby, offering fresh produce and shopping opportunities that you can visit before or after your USPS visit.
Where can I find community services around the USPS location in Mascoutah?
You can find community services such as the Concerned Christians Mascoutah Food Pantry and Mascoutah Food Pantry nearby for charitable support and community aid.
Are there any government or municipal offices close to the Mascoutah Post Office at 18 W Main St?
Yes, nearby government-related places include the Mascoutah Police Department, City of Mascoutah Illinois town hall, and Mascoutah City Clerk offices.
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