ZIP code · Seneca · Illinois · United States
ZIP code 61360 — Seneca
ZIP code 61360 serves Seneca, Illinois.
- Postal code
- 61360Single source Value from one source, not cross-checked.
- City
- Seneca
- County
- LaSalle
- State
- Illinois
- Country
- United States
- Coordinates
- 41.3152, -88.6100 — precision precise (locality)
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About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page