| Code | Name | Region |
|---|---|---|
| AUCDF | Cardiff | NSW |
| AUCGL | Carey Gully | SA |
| AUCG4 | Cargo | NSW |
| AUCAR | Carina Heights | QLD |
| AUCDL | Carindale | QLD |
| AUCNE | Carine | WA |
| AUCRG | Caringbah | NSW |
| AUCFI | Camfield | NT |
| AUCML | Camooweal | QLD |
| AUCPA | Campania | TAS |
| AUCPB | Campbell | ACT |
| AUCFL | Campbellfield | VIC |
| AUCPC | Campbells Creek | VIC |
| AUCBN | Campbelltown | NSW |
| AUCMT | Campbelltown | SA |
| AUCMP | Camperdown | NSW |
| AUCPW | Camperdown | VIC |
| AUCBR | Canberra | ACT |
| AUCNN | Canning Vale/perth | WA |
| AUCNT | Cannington | WA |
| AUCAH | Cannon Hill | QLD |
| AUCBY | Canobie | QLD |
| AUCDS | Canoelands | NSW |
| AUJWI | Canowindra | NSW |
| AUNCT | Canterbury | NSW |
| AUVRY | Canterbury | VIC |
| AUNBC | Canungra | QLD |
| AUBBW | Burwood | NSW |
| AUBUW | Burwood | VIC |
| AUBWE | Burwood East | VIC |
| AUBYY | Bushy Park | VIC |
| AUBUS | Busselton | WA |
| AUUQF | Bute | SA |
| AUBYF | Byford | WA |
| AUS2E | Bylands | VIC |
| AUBAY | Byron Bay | NSW |
| AUCAB | Caboolture | QLD |
| AUCGE | Cadgee | SA |
| AUCDX | Cadoux | WA |
| AUCGV | Caiguna | WA |
| AUCNS | Cairns | QLD |
| AUCUD | Caloundra | QLD |
| AUCAL | Caloundra Head | QLD |
| AUCAM | Camberwell | VIC |
| AUCMB | Cambridge | TAS |
| AUCDU | Camden | NSW |
| AUCIA | Camellia | NSW |
| AUBUN | Bundoora | VIC |
| AUBLW | Bungalow | QLD |
| AUEGO | Bungendore | NSW |