Postal Code for Seneca, Illinois
The postal code for Seneca, Illinois, United States is 61360. With map location and coordinates.
The postal code for Seneca, Illinois, United States is 61360:
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 61360 | Seneca | LaSalle | 41.315, -88.61 |
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Frequently asked questions
What is the postal code of Seneca?
The postal code of Seneca is 61360.
Why does Seneca have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.