| Place | Post Code |
|---|---|
| Achurch, East Midlands) | PE8 5SL |
| Aldwincle, East Midlands) | NN14 |
| Apethorpe, East Midlands) | PE8 |
| Armston, East Midlands) | PE8 5PR |
| Ashton, East Midlands) | PE8 |
| Barnwell, East Midlands) | PE8 |
| Blatherwycke, East Midlands) | PE8 |
| Brigstock, East Midlands) | NN14 |
| Bulwick, East Midlands) | NN17 |
| Caldecott, East Midlands) | NN9 |
| Chelveston, East Midlands) | NN9 |
| Clopton, East Midlands) | NN14 |
| Collyweston, East Midlands) | PE9 |
| Postal Codes in Northamptonshire | |
|---|---|
| Corby | |
| Daventry | |
| East Northamptonshire | |
| Kettering | |
| Northampton | |
| South Northamptonshire | |
| Wellingborough | |