Bangor is a cathedral city and community in Gwynedd, North Wales. It is the oldest town in Wales. Historically part of Caernarfonshire, the co…Bangor is a cathedral city and community in Gwynedd, North Wales. It is the oldest town in Wales. Historically part of Caernarfonshire, the community had a population of 15,060 at the 2021 census, and the built up area had a population of 16,990. Landmarks include Bangor Cathedral, Bangor University and Garth Pier. The Britannia and Menai Suspension bridges connect the city to the Isle of Anglesey.