| Code | Name | Region |
|---|---|---|
| AUCUN | Caufield North | VIC |
| AUCLD | Caulfield | VIC |
| AUCAV | Cavan | SA |
| AUCVS | Caversham | WA |
| AUC8M | Caves Beach | NSW |
| AUCED | Ceduna | SA |
| AUCES | Cessnock | NSW |
| AUCHD | Chadstone/melbourne | VIC |
| AUCWK | Chadwick | WA |
| AUCHV | Challis Venture (oil Terminal) | NT |
| AUDLH | Chandlers Hill | |
| AUCTL | Charleville | QLD |
| AUHOC | Charlton | VIC |
| AUCXT | Charters Towers | QLD |
| AUCHA | Chatswood | NSW |
| AUCWI | Chatsworth Island | NSW |
| AUS2R | Chelsea | VIC |
| AUCLF | Carlingford | NSW |
| AUCRT | Carlton | VIC |
| AUCRY | Carlton Hill | WA |
| AUCR2 | Carlton River | TAS |
| AUCVQ | Carnarvon | WA |
| AUUCG | Carnegie | VIC |
| AUCRP | Carole Park | QLD |
| AUSRS | Caroline Springs | VIC |
| AUCFP | Carpentaria Downs | QLD |
| AUCRA | Carrara | QLD |
| AUCRR | Carrington | NSW |
| AUCAD | Carrum Downs | VIC |
| AUCSI | Casino | NSW |
| AUCTC | Castle Cove | NSW |
| AUCHI | Castle Hill | NSW |
| AUCSX | Castlecrag | NSW |
| AUCSM | Castlemaine | VIC |
| AUCAS | Castlereagh | NSW |
| AUCZA | Casuarina | NSW |
| AUS9S | Casula | NSW |
| AUCAP | Capalaba | QLD |
| AUCBI | Cape Barren Island | TAS |
| AUCCU | Cape Cuvier | WA |
| AUDON | Cape Don | NT |
| AUCQP | Cape Flattery | QLD |
| AUCLT | Cape Lambert | WA |
| AUCLN | Cape Leeuwin | WA |
| AUCPN | Cape Preston | WA |
| AUCPL | Capel | WA |
| AUCBD | Carabooda | WA |
| AUCBO | Carboor | VIC |
| AUCRK | Carbrook | QLD |
| AUUUP | Carbunup | WA |