The diocese covers the County of Anglesey, most of Gwynedd and a small part of Powys. The see is in the town of Bangor where the seat is located at the Cathedral Church of Saint Deniol .
The diocese in the Welsh kingdom of Gwynedd was founded around 546 by Saint Deniol . The current bishop is the Right Reverend Phillip Anthony Crockett , the 80th Bishop of Bangor, who was enthroned at Bangor Cathedral on 18 September2004
List of the Bishops of the Diocese of Bangor, Wales