| Locality | Post Code |
|---|---|
| Appleton City, Saint Clair | 64724 |
| Collins, Saint Clair | 64738 |
| Damascus, Saint Clair | 64776 |
| Deepwater, Saint Clair | 64740 |
| Lowry City, Saint Clair | 64763 |
| Osceola, Saint Clair | 64776 |
| Rockville, Saint Clair | 64780 |
| Roscoe, Saint Clair | 64781 |
| Schell City, Saint Clair | 64783 |
| Vista, Saint Clair | 64776 |