| Locality | Post Code |
|---|---|
| Broseley, Butler | 63932 |
| Fagus, Butler | 63938 |
| Fisk, Butler | 63940 |
| Harviell, Butler | 63945 |
| Neelyville, Butler | 63954 |
| Poplar Bluff, Butler | 63901 |
| Qulin, Butler | 63961 |
| Rombauer, Butler | 63901 |
| Wappapello, Butler | 63966 |
| Williamsville, Butler | 63967 |