📍 Allt Yr Efail, Llandegla, Sir Ddinbych, Denbighshire, LL11 3AW
Ysgol Dyffryn Ial is a Maintained serving primary age pupils, located in Sir Ddinbych, Denbighshire. The school has 46 pupils enrolled. It was rated Not in follow-up by Estyn in 3 September 2024. The school is administered by Denbighshire local authority. The school has a Church in Wales religious character.