Business Details
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Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 5707 S Cass Ave 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
Hours
Reviews
3.1
171 reviews
5 stars
76
4 stars
14
3 stars2
2 stars
11
1 star
68
What are people saying?
AI-generated from recent customer reviews
Customer Service
Many reviews highlighted consistently rude and unhelpful staff, with several customers expressing frustration over negative interactions.
Staff Performance
While some employees, particularly Lolita and Amber, received praise for their exceptional service, others were criticized for being unprofessional and lacking knowledge.
Service Efficiency
Customers reported long wait times and inefficient service, often with only one employee available during busy hours.
Delivery Issues
Numerous complaints were made regarding delayed or misdelivered packages, with some customers expressing dissatisfaction with the handling of their mail.
- ISIL State4 days ago1.06:44pm 1/7/2026. Smelled like marijuana when I walked in. The only people in there were 2 clerks no customers. The One was training the other was a trainer.
- MSMike SramekDec 26, 20252.0Usually very good. But on Wednesday they skipped our house because of a car parked in front. I can't control where people park on a public street. It may not have been our regular delivery person
- TMTania MorganDec 23, 20251.0Every time I come here they decide to change or make up their own rules. I needed to tape my box up with a single piece of tape maybe a foot long. The woman at the desk charged me $3 for it!!! I routinely send the same package and it’s always been a flat fee if $10. The next time I go in I was charged $27, and the woman working said they raised their prices and it was the cheapest option. She then proceeded to offer a “discount” of $7 to bring my total to $20. Oh and if you come here and ask an employee ANY question whatsoever they will lash out at you and refuse to help.
- AFAtticus FairDec 23, 20251.0The people working at this post office are all extremely rude and unhelpful. As I’m waiting in line for over an hour, one of the ladies at the desk assisting another customer was screaming at the man and acting extremely disrespectful because he was having trouble writing an address in English. I stepped over and attempted to help the customer when the lady told me, “no! step back in the line sir!” I continued helping the customer and she threatened to call “security”. What a joke. And if you plan on mailing a package or making a purchase inside, set aside the entire day. The line is always out the door, and despite there people four or five other employees, only one is working the desk.
- HHHitokiriDec 5, 20252.0Public service announcement: if you have time sensitive items to send, do Not use the Dropbox inside the post office! I dropped off 51 packages in the dropoff box inside (at self kiosk center) at 7:30 p.m. on wednesday. It is now Friday 11:00 a.m. and all labels are still showing up online as "created", not processed. I have customers upset with me because the shipments have not gone out yet and it looks like I have not even shipped them. I asked the employees at the post office today and they said if you drop it off in that box it gets done "whenever" and gave me no estimate on when those packages will be processed.
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.
Where is the United States Postal Service located in Westmont, IL?
The United States Postal Service is located at 5707 S Cass Ave, Westmont, IL 60559.
What are the operating hours for the postal office at 5707 S Cass Ave?
The postal office is open Monday through Friday from 8:30 AM to 7:00 PM, Saturday from 8:30 AM to 4:00 PM, and closed on Sundays.
Can I apply for a passport at this USPS location?
Yes, this location accepts first-time passport applications for the U.S. Department of State, and most can also take your passport photo. You should complete and print your passport application form before applying.
Do I need an appointment for passport services at this Post Office?
Most Post Offices offering passport services require you to schedule an appointment using the online scheduler. Limited walk-in hours may also be available at select locations.
What is the cost for a passport photo at this USPS location?
The current fee for a passport photo at USPS is $15.
Can I rent a PO Box at this Post Office, and how?
Yes, you can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm and complete your setup in person at the Post Office.
What nearby places can customers visit before or after coming to the United States Postal Service?
Nearby you can visit Robert Bernas Park for outdoor activities or enjoy a meal at Marmelly Restaurant, a Mexican and TexMex restaurant. These places offer a nice break before or after your visit to the Post Office.
Are there other postal facilities near this USPS location?
Yes, there are other nearby postal facilities including another US Post Office and the United States Postal Service office near 5707 S Cass Ave.
What nearby services can complement a visit to the USPS, such as financial or tech support?
Nearby services include Homeland Mortgage Company for financial services and Computer Tech Service for electronics support, which might be helpful to customers in the area.
Is parking or public transit information available for the USPS at 5707 S Cass Ave?
While specific transit info isn't provided, the USPS is located on S Cass Ave in Westmont, near local landmarks, making it accessible by car or local transit routes. Checking local transit maps is recommended.