| SA66 7XG information | |
|---|---|
| Postcode | SA66 7XG |
| Outward code | SA66 |
| Place | Efailwen |
| Name | Place | Postcode |
|---|---|---|
| Bromerydd, Efailwen | Efailwen | SA66 7XG |
| Llys Myrddin, Efailwen | Efailwen | SA66 7XG |
| Maesyffynnon, Efailwen | Efailwen | SA66 7XG |
| Marchgwyn Isaf, Efailwen | Efailwen | SA66 7XG |
| Marchgwyn Uchaf, Efailwen | Efailwen | SA66 7XG |
| Pant y Blodau, Efailwen | Efailwen | SA66 7XG |
| Pencraig Uchaf, Efailwen | Efailwen | SA66 7XG |
| Rhos, Efailwen | Efailwen | SA66 7XG |
| Rhosfach, Efailwen | Efailwen | SA66 7XG |
| Rhyd y Merydd, Efailwen | Efailwen | SA66 7XG |