| Locality | Post Code |
|---|---|
| Chilcombe | DT6 |
| Child Okeford | DT11 |
| Childhay | DT8 3LQ |
| Chilfrome | DT2 |
| Church Knowle | BH20 |
| Clayford | BH21 7BJ |
| Clifton Maybank | BA22 9UZ |
| Clouds Hill | BH20 7NQ |
| Cocknowle | BH20 5NT |
| Cokers Frome | DT2 |
| Coldharbour | BH20 7PA, BH20 7PE |
| Colehill | BH21 |
| Colesbrook | SP8 |
| Compton Abbas | SP7 |
| Compton Valence | DT2 |
| Coombe Keynes | BH20 |
| Corfe Castle | BH20 |
| Corfe Mullen | BH21 |
| Corscombe | DT2 |
| Coryates | DT3 4HW |
| Cosmore | DT2 7TW |
| Cowgrove | BH21 |
| Cranborne | BH21 |
| Crawthorne | DT2 7NG |
| Creech | BH20 |
| Crendell | SP6 |