Cwm Cadnant

Cwm Cadnant is a community and former electoral ward in Anglesey, north Wales. Named after the local river, Afon Cadnant, which flows through it, the community takes in the area between the Menai Bridge and Beaumaris. The community includes the villages of Llandegfan, Hen Bentref Llandegfan and Llansadwrn as well as the settlement of Bryn-minceg and at the 2001 census it had a population of 2,222, increasing slightly to 2,254 at the 2011 census.

Prior to the 2013 Isle of Anglesey County Council election Cwm Cadnant was an electoral ward in its own right. It is now part of the Seiriol ward, which includes the neighbouring Beaumaris, Llanddona, and Llangoed communities.

The lower part of the Afon Cadnant, which passes through part of Llandegfan is Cadnant Dingle, a Site of Special Scientific Interest. The site was selected as an example of Brachypodium sylvaticum – Quercus/Fraxinus broadleaved woodland.