| Locality | Post Code |
|---|---|
| Budock Water | TR11 |
| Bugle | PL26 |
| Burlawn | PL27 |
| Burraton | PL12 6ST |
| Burraton Coombe | PL12 |
| Buryas Bridge | TR19 |
| Bush | EX23 |
| Busvannah | TR10 9LQ |
| Busveal | TR16 |
| Caerhays | PL26 |
| Calenick | TR3 |
| Callestick | TR4 |
| Callington | PL17 |
| Calstock | PL18 |
| Camborne | TR14 |
| Cambrose | TR16 4HT |
| Camelford | PL32 |
| Canonstown | TR27 |
| Canworthy Water | PL15 |
| Cape Cornwall | TR19 |
| Caradon Town | PL14 5AR |
| Carbean | PL26 |
| Carbis | PL26 |
| Carbis Bay | TR26 |
| Carbis Moor | PL26 8YJ |
| Carclaze | PL25 |