| Locality | Post Code |
|---|---|
| Alpine, Carbon | 59071 |
| Bearcreek, Carbon | 59007 |
| Belfry, Carbon | 59008 |
| Boyd, Carbon | 59013 |
| Bridger, Carbon | 59014 |
| Edgar, Carbon | 59026 |
| Fox, Carbon | 59070 |
| Fromberg, Carbon | 59029 |
| Joliet, Carbon | 59041 |
| Luther, Carbon | 59068 |
| Red Lodge, Carbon | 59068 |
| Roberts, Carbon | 59070 |
| Roscoe, Carbon | 59071 |
| Silesia, Carbon | 59041 |
| Washoe, Carbon | 59007 |