| Locality | Postal Code |
|---|---|
| Brownieside | NE67 5HW |
| Brunton | NE66 3HQ |
| Burradon | NE65 |
| Byrness Village | NE19 |
| Bywell | NE43 |
| Callaly | NE66 |
| Cambo | NE61 |
| Cambois | NE24 |
| Capheaton | NE19 |
| Carrshield | NE47 |
| Carterway Heads | DH8 |
| Cartington | NE65 |
| Catcleugh | NE19 |
| Catton | NE47 |
| Causey Park | NE61 |
| Cawburn | NE49 9PL |
| Charlton | NE48 1PE |
| Chathill | NE67 |
| Chatton | NE66 |
| Cheeseburn Grange | NE18 0PT |
| Chesterwood | NE47 6HW |
| Chillingham | NE66 |
| Chollerford | NE46 |
| Chollerton | NE46 |
| Choppington | NE62 |
| Christon Bank | NE66 |