Ysgol Dyffryn Banw is situated in the village of Llangadfan and is maintained by Powys local authority. It serves the village and the surrounding rural area. It provides education for pupils between 4 and 11 years old. Currently, there are 26 pupils on roll in two mixed age classes. Approximately 12% of pupils are eligible for free school meals, which is lower than the Welsh average (19%). Approximately 14% of pupils come from homes in which Welsh is the main language. There are no pupils from ethnic minority backgrounds. The school has identified that approximately 24% of pupils have additional learning needs, which is slightly lower than the national average (25%). The school was last inspected in January 2010. The headteacher has been in post since September 2014. The permanent headteacher is currently on maternity leave and, since September, the authority has ensured that another headteacher is in charge of the school. The individual school budget per pupil for Ysgol Dyffryn Banw in 2016-2017 is £5,561. The maximum per pupil in primary schools in Powys is £5,561 and the minimum is £2,960. Ysgol Dyffryn Banw is in 1st place of the 83 primary schools in Powys in terms of the school budget per pupil.