The Welsh village of Llanddewi Ystradenni is located within the county of Powys and has a population of approximately 1,300.
Llanddewi Ystradenni is governed by Powys - Powys council.
Llanddewi Ystradenni is policed by Dyfed-Powys Police
Llanddewi Ystradenni is within the Parliamentary Constituency of Brecon and Radnorshire
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