Seneca Post Office Contact Information
Address, Phone Number, and Hours for an Post Office in Seneca, Illinois.
| Name | Seneca Post Office |
| Address | 121 Armour Street, Seneca IL 61360 Map |
| Phone | (815) 357-8393 |
| Website | |
| Hours |
Map of Seneca Post Office
About Seneca Post Office
The Seneca Post Office, located in Seneca, IL, is a branch location of the United States Postal Service (USPS) that serves the Seneca community. The customer service postal facility offers mail and package delivery services, P.O. box services, and passport services. The USPS operates as an independent agency within the federal government, supported entirely by revenues generated through its operations.
Interested parties may contact Post Office for questions about:
- Seneca, Illinois Post Office hours and locations
- PO Box services in Seneca
- Mail and package delivery services
- Postage rates
- Passport services
- La Salle County, Illinois Post Office jobs and employment