| Location | States or Territories | Abbreviation | Postcode |
|---|---|---|---|
| Cunliffe | South Australia | SA | 5554 |
| Cunningham | South Australia | SA | 5571 |
| Cunyarie | South Australia | SA | 5641 |
| Curramulka | South Australia | SA | 5580 |
| Currency Creek | South Australia | SA | 5214 |
| Custon | South Australia | SA | 5269 |
| Cuttlefish Bay | South Australia | SA | 5222 |
| Cygnet River | South Australia | SA | 5223 |
