| Location | States or Territories | Abbreviation | Postcode |
|---|---|---|---|
| Cornwall | Tasmania | TAS | 7215 |
| Couta Rocks | Tasmania | TAS | 7330 |
| Cowrie Point | Tasmania | TAS | 7321 |
| Crabtree | Tasmania | TAS | 7109 |
| Cradle Mountain | Tasmania | TAS | 7306 |
| Cradoc | Tasmania | TAS | 7109 |
| Cramps Bay | Tasmania | TAS | 7030 |
| Cranbrook | Tasmania | TAS | 7190 |
| Crayfish Creek | Tasmania | TAS | 7321 |
| Cremorne | Tasmania | TAS | 7024 |
| Cressy | Tasmania | TAS | 7302 |
| Cuckoo | Tasmania | TAS | 7260 |
| Cuprona | Tasmania | TAS | 7316 |
| Currie, King Island | Tasmania | TAS | 7256 |
| Cygnet | Tasmania | TAS | 7112 |
