United States Postal Service
Main:
(800) 275-8777
Alt: (630) 968-0855
Fax: (331) 251-2065
Alt: (630) 968-0855
Fax: (331) 251-2065
5707 S Cass Ave, Westmont, Illinois, 60559
Business hours
| Monday | 8:30am to 7:00pm |
| Tuesday | 8:30am to 7:00pm |
| Wednesday | 8:30am to 12:00pm |
| Thursday | - |
| Friday | 8:30am to 7:00pm |
| Saturday | 8:30am to 4:00pm |
| Sunday | - |
About us
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
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