| Locality | Post Code |
|---|---|
| Baggs, Carbon | 82321 |
| Casper, Carbon | 82615 |
| Creston, Carbon | 82301 |
| Dixon, Carbon | 82323 |
| Elk Mountain, Carbon | 82324 |
| Elmo, Carbon | 82327 |
| Encampment, Carbon | 82325 |
| Fort Steele, Carbon | 82301 |
| Hanna, Carbon | 82327 |
| Kortes Dam, Carbon | 82327 |
| Leo, Carbon | 82327 |
| Medicine Bow, Carbon | 82329 |
| Muddy Gap, Carbon | 82301 |
| Rawlins, Carbon | 82301 |
| Riner, Carbon | 82301 |
| Riverside, Carbon | 82325 |
| Ryan Park, Carbon | 82331 |
| Saratoga, Carbon | 82331 |
| Savery, Carbon | 82332 |
| Shirley Basin, Carbon | 82615 |
| Sinclair, Carbon | 82334 |
| Walcott, Carbon | 82335 |