Saint John, IN
ZIP Codes in Saint John, Indiana
February 7, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 46373 | 17,741 | 41.4418, -87.4678 |
Saint John has 1 ZIP code
ZIP Codes in Saint John, Indiana
February 7, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 46373 | 17,741 | 41.4418, -87.4678 |