Map
General Information
| Postal Area | Monmouthshire |
| Postcode | NP11 4YU |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Wales |
| Local authority | Caerphilly |
| Introduction Date | 2001-12-01 |
| Termination Date | 2004-04-01 |
Geographic Information
| Latitude | 51.6716100 |
| Longitude | -3.1423510 |
| Easting | 321100 |
| Northing | 197600 |
| Quality | Imputed by ONS, by reference to surrounding postcode grid references |