Middletown, IL
ZIP Codes in Middletown, Illinois
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 62666 | 517 | 40.0824, -89.5396 |
Middletown has 1 ZIP code
ZIP Codes in Middletown, Illinois
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 62666 | 517 | 40.0824, -89.5396 |