| Code | Name | Region |
|---|---|---|
| AUCDR | Cordalba | QLD |
| AUODL | Cordillo Downs | SA |
| AUCBA | Corio Bay | VIC |
| AUCRV | Coromandel Valley | SA |
| AUCWW | Corowa | NSW |
| AUCYG | Corryong | VIC |
| AUCOP | Cossack Pioneer (oil Terminal) | WA |
| AUCTE | Cottesloe | WA |
| AUCTT | Cottles Bridge | VIC |
| AUDIL | Cowandilla | SA |
| AUCOW | Cowaramup | |
| AUCWR | Cowarie | SA |
| AUCCW | Cowell | SA |
| AUESS | Cowes | SA |
| AUCWT | Cowra | NSW |
| AUDOC | Cradoc | TAS |
| AUCRF | Crafers | SA |
| AUCVA | Craigieburn | VIC |
| AURRK | Cranbrook | TAS |
| AUKRR | Cranbrook | WA |
| AUCLA | Coolamon | NSW |
| AUCOL | Coolaroo | VIC |
| AUCOY | Coolawanyah | WA |
| AUCGA | Coolgardie | WA |
| AUCOB | Coolibah | NT |
| AUCOU | Coolum | QLD |
| AUCOM | Cooma | NSW |
| AUCKM | Coomba Park | NSW |
| AUCOO | Coomera | QLD |
| AUYMN | Coominya | QLD |
| AUCOJ | Coonabarabran | NSW |
| AUCNB | Coonamble | NSW |
| AUCNW | Coonawarra | SA |
| AUCPS | Coopers Plains | QLD |
| AUCRJ | Coorabie | SA |
| AUCOG | Cooranbong | NSW |
| AUCPR | Coorparoo | QLD |
| AUCMD | Cootamundra | NSW |
| AUCRL | Coral Bay | WA |
| AUCRS | Coral Sea | |
| AUCIE | Collie | WA |
| AUOOC | Collingwood | VIC |
| AUKCE | Collinsville | QLD |
| AUIWS | Collinswood | SA |
| AUCUL | Columboola | QLD |
| AUCMO | Como | NSW |
| AUORN | Concord | NSW |
| AUHDC | Condah | VIC |
| AUCDE | Condamine | QLD |
| AUCBX | Condobolin | NSW |