City · Illinois · United States
Flat Rock, IL — ZIP codes
1 ZIP code · Crawford County
- City
- Flat Rock
- County
- Crawford
- State
- Illinois
- Country
- United States
- Postal code
- 62427Single source
- Coordinates
- 38.9096, -87.6837 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 62427 | Flat Rock | 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. Last generated : 2026-08-21. Report an error.