Zip Code | City | Population |
|---|---|---|
| 47362 | New Castle | 29,377 |
| 47356 | Middletown | 5,451 |
| 46148 | Knightstown | 5,135 |
| 47384 | Shirley | 2,282 |
| 47385 | Spiceland | 1,816 |
| 47360 | Mooreland | 1,404 |
| 47386 | Springport | 1,190 |
| 47352 | Lewisville | 763 |
| 47387 | Straughn | 522 |
| 47351 | Kennard | 519 |
| 47388 | Sulphur Springs | 407 |
| 47361 | Mount Summit | 239 |
| 47337 | Dunreith | 204 |
| 47344 | Greensboro | 175 |
| 47366 | New Lisbon | 34 |