| SY10 0NJ information | |
|---|---|
| Postcode | SY10 0NJ |
| Outward code | SY10 |
| Place | Llanwddyn |
| Name | Place | Postcode |
|---|---|---|
| Blaen Cownwy, Llanwddyn | Llanwddyn | SY10 0NJ |
| Bryn Adda, Llanwddyn | Llanwddyn | SY10 0NJ |
| Bryn Cownwy, Llanwddyn | Llanwddyn | SY10 0NJ |
| Capel Bethania, Llanwddyn | Llanwddyn | SY10 0NJ |
| Maes y Caerneddau, Llanwddyn | Llanwddyn | SY10 0NJ |
| Pen Isar Cwm, Llanwddyn | Llanwddyn | SY10 0NJ |