City · Indiana · United States
Chesterton, IN — ZIP codes
1 ZIP code · Porter County
- City
- Chesterton
- County
- Porter
- State
- Indiana
- Country
- United States
- Postal code
- 46304Single source
- Coordinates
- 41.6143, -87.0470 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 46304 | Chesterton | Single source |
Sources and verification
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 · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.