| Location | States or Territories | Abbreviation | Postcode |
|---|---|---|---|
| Castella | Victoria | VIC | 3777 |
| Casterton | Victoria | VIC | 3311 |
| Castle Creek | Victoria | VIC | 3691 |
| Castle Donnington | Victoria | VIC | 3585 |
| Castlemaine | Victoria | VIC | 3450 |
| Catani | Victoria | VIC | 3981 |
| Cathcart | Victoria | VIC | 3377 |
| Cathkin | Victoria | VIC | 3714 |
| Catumnal | Victoria | VIC | 3537 |
| Caulfield | Victoria | VIC | 3162 |
| Caulfield East | Victoria | VIC | 3145 |
| Caulfield Junction | Victoria | VIC | 3161 |
| Caulfield North | Victoria | VIC | 3161 |
| Caulfield South | Victoria | VIC | 3162 |
| Caveat | Victoria | VIC | 3660 |
| Cavendish | Victoria | VIC | 3314 |
| Central Park | Victoria | VIC | 3145 |
| Ceres | Victoria | VIC | 3221 |
| Chadstone | Victoria | VIC | 3148 |
| Chadstone Centre | Victoria | VIC | 3148 |
