| Locality | Post Code |
|---|---|
| Bromide, Johnston | 74530 |
| Coleman, Johnston | 73432 |
| Connerville, Johnston | 74836 |
| Kenefic, Johnston | 74748 |
| Mannsville, Johnston | 73447 |
| Milburn, Johnston | 73450 |
| Mill Creek, Johnston | 74856 |
| Ravia, Johnston | 73455 |
| Tishomingo, Johnston | 73460 |
| Wapanucka, Johnston | 73461 |