Mid and West Wales

Mid and West Wales is an unofficial subdivision of Wales that is sometimes used, consisting broadly of the preserved counties of Dyfed and Powys, sometimes Swansea and sometimes parts of Gwynedd.
There is a Mid and West Wales Fire and Rescue Service and a Dyfed-Powys Police service.
There is also an electoral region for the Senedd Cymru with the same name (which is used, in parallel with the smaller "constituencies", to elect top-up members under the Additional Member System). A European Parliament constituency existed from 1979 until 1999.