| Place | Postal Code |
|---|---|
| Althorp, East Midlands) | NN7 |
| Arthingworth, East Midlands) | LE16 |
| Ashby Saint Ledgers, East Midlands) | CV23 |
| Badby, East Midlands) | NN11 |
| Barby, East Midlands) | CV23 |
| Boughton, East Midlands) | NN2 |
| Braunston, East Midlands) | NN11 |
| Brixworth, East Midlands) | NN6 |
| Brixworth Industrial Estate, East Midlands) | NN6 9EU, NN6 9PD, NN6 … |
| Brockhall, East Midlands) | NN7 |
| Byfield, East Midlands) | NN11 |
| Canons Ashby, East Midlands) | NN11 |
| Catesby, East Midlands) | NN11 |
| Postal Codes in Northamptonshire | |
|---|---|
| Corby | |
| Daventry | |
| East Northamptonshire | |
| Kettering | |
| Northampton | |
| South Northamptonshire | |
| Wellingborough | |