| Place | Post Code |
|---|---|
| Bozeat, East Midlands) | NN29 |
| Denington Industrial Estate, East Midlands) | NN8 |
| Earls Barton, East Midlands) | NN6 |
| Easton Maudit, East Midlands) | NN29 |
| Ecton, East Midlands) | NN6 |
| Finedon, East Midlands) | NN9 |
| Finedon Road Industrial Estate, East Midlands) | NN8 |
| Great Doddington, East Midlands) | NN29 |
| Great Harrowden, East Midlands) | NN9 |
| Grendon, East Midlands) | NN7 |
| Hardwick, East Midlands) | NN9 |
| Industrial Estate, East Midlands) | NN29 7RG, NN29 7RQ |
| Irchester, East Midlands) | NN29 |
| Postal Codes in Northamptonshire | |
|---|---|
| Corby | |
| Daventry | |
| East Northamptonshire | |
| Kettering | |
| Northampton | |
| South Northamptonshire | |
| Wellingborough | |