Map
General Information
| Postal Area | Gwynedd |
| Postcode | LL61 5ZB |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Wales |
| Local authority | Isle of Anglesey |
| Introduction Date | 1997-12-01 |
| Termination Date | 1999-12-01 |
Geographic Information
| Latitude | 53.2234320 |
| Longitude | -4.2020330 |
| Easting | 253088 |
| Northing | 371862 |
| Quality | Postcode sector mean, (mainly PO Boxes) |