- Coober Pedy
- Coonawarra
- Cadell
- Calca
- Calgara
- Caliph
- Callington
- Calomba
- Caloote
- Calpatanna
- Caltowie
- Caltowie North
- Caltowie West
- Cambrai
- Campbell Park
- Campbelltown
- Campoona
- Cannawigara
- Canowie
- Canowie Belt
- Cape Bauer
- Cape Borda
- Cape Douglas
- Cape Jaffa
- Cape Jervis
- Caralue
- Caralue
- Carawa
- Carcory
- Careena Downs