| Locality | Post Code |
|---|---|
| Corsham | SN13 |
| Corsley | BA12 |
| Corston | SN16 |
| Corton | BA12 |
| Coulston | BA13 |
| Cricklade | SN6 |
| Crockerton | BA12 |
| Crofton | SN8 3DW |
| Crudwell | SN16 |
| Dauntsey | SN15 |
| Dauntsey Lock | SN15 |
| Derry Hill | SN11 |
| Devizes | SN10 |
| Dilton Marsh | BA13 |
| Dinton | SP3 |
| Donhead Saint Andrew | SP7 |
| Donhead Saint Mary | SP7 |
| Downton | SP5 |
| Draycot Cerne | SN15 |
| Druids Lodge | SP3 |
| Durley | SN8 3AZ |
| Durrington | SP4 |
| East Chisenbury | SN9 |
| East Grafton | SN8 |
| East Grimstead | SP5 |
| East Harnham | SP2 8NZ |