| Country | Wales |
|---|---|
| UK region | Wales |
| Postcode area | SY |
| Unitary Authority | Powys |
Llanwddyn postcode districts
Llanwddyn has 1 postcode district
Llanwddyn postcode sectors
Llanwddyn has 1 postcode sector
| Country | Wales |
|---|---|
| UK region | Wales |
| Postcode area | SY |
| Unitary Authority | Powys |
Llanwddyn has 1 postcode district
Llanwddyn has 1 postcode sector