Map
General Information
| Postal Area | West Northamptonshire |
| Postcode | NN1 1ER |
| User Type | Small (less than 25 items of mail per day) |
| Region | East Midlands |
| Country | England |
| Local authority | West Northamptonshire |
| Introduction Date | 1998-06-01 |
Geographic Information
| Latitude | 52.2349890 |
| Longitude | -0.8949120 |
| Easting | 475565 |
| Northing | 260219 |
| Quality | Within the building of the matched address closest to the postcode mean |