| Locality | Post Code |
|---|---|
| Aberdeen, Butler | 42201 |
| Brooklyn, Butler | 42261 |
| Cromwell, Butler | 42333 |
| Dunbar, Butler | 42219 |
| Huntsville, Butler | 42261 |
| Jetson, Butler | 42252 |
| Lewisburg, Butler | 42256 |
| Logansport, Butler | 42261 |
| Monford, Butler | 42252 |
| Morgantown, Butler | 42261 |
| Provo, Butler | 42261 |
| Quality, Butler | 42256 |
| Rochester, Butler | 42273 |
| Roundhill, Butler | 42275 |
| Welchs Creek, Butler | 42261 |
| Woodbury, Butler | 42288 |