| Locality | Post Code |
|---|---|
| Acme, Sheridan | 82839 |
| Arvada, Sheridan | 82831 |
| Banner, Sheridan | 82832 |
| Big Horn, Sheridan | 82833 |
| Clearmont, Sheridan | 82835 |
| Dayton, Sheridan | 82836 |
| Leiter, Sheridan | 82837 |
| Parkman, Sheridan | 82838 |
| Ranchester, Sheridan | 82839 |
| Sheridan, Sheridan | 82801 |
| Story, Sheridan | 82842 |
| Wolf, Sheridan | 82844 |
| Wyarno, Sheridan | 82845 |