Like all the constituencies covered by the North West Wales Conservative Federation, Bangor Aberconwy is a UK Parliamentary constituency. The Assembly seat was first contested in the 2007 Welsh Assembly elections, the Parliamentary seat is newly created and will be the first to be contested in the next General Election.
The new constituency was created from the former Arfon, Aberconwy and Clwyd West constituencies following the 2023 Parliamentary Constituencies Review which was conducted by the Boundary Commission for Wales. The main population centres in Bangor Aberconwy are Bangor, Llandudno, Conwy, Llandudno Junction, Penmaenmawr, Llanfarifechan and Llanrwst.
Bangor Aberconwy sits within Conwy County Borough Council, Denbighshire County Council and Gwynedd Council and is made up of the following electoral divisions: Bryn, Capello, Conwy, Craig-Y-Don, Conwy, Deganwy, Gogarth, Gower, Llansanffraid, Marl, Moisten, Pandy, Pant-yr-Afon/Penmaenan, Penrhyn, Pensarn, Tudno, Deiniol, Demi, Garth, Gerlan, Glyder, Hendre, Hirael, Marchog, Menai (Bangor), Ogwen, Pentir, Tregarth & Mynydd Llandygai.