Mid and West Wales (Senedd electoral region)

Mid and West Wales
Mid and West Wales
Canolbarth a Gorllewin Cymru (Welsh)
Multi-member electoral region; for the Senedd
Map of Mid and West Wales, with constituencies numbered alphabetically and coloured in 2021 party colours. Inset within Wales shown to the left with the four regional seats.
Interactive map
	Interactive map of the constituency
Preserved counties	Dyfed; Gwynedd (part); Powys; ;
Current Multi-member electoral region
Created	1999 (amended in 2007)
Number of members	12 8 constituency; 4 regional; ;
MSs	Plaid Cymru (4); Conservative (4); Labour (3); Liberal Democrats (1);
Constituencies	Brecon and Radnorshire; Carmarthen East and Dinefwr; Carmarthen West and South Pembrokeshire; Ceredigion; Dwyfor Meirionnydd (since 2007); Llanelli; Montgomeryshire; Preseli Pembrokeshire;
Former constituencies (1999–2007)	Meirionnydd Nant Conwy;

Mid and West Wales (Welsh: Canolbarth a Gorllewin Cymru) is an electoral region of the Senedd, consisting of eight constituencies. The region elects twelve members, eight directly elected constituency members and four additional members. The electoral region was first used in the 1999 Welsh Assembly election, when the National Assembly for Wales was created.

Each constituency elects one Member of the Senedd by the first past the post electoral system, and the region as a whole elects four additional or top-up Members of the Senedd, to create a degree of proportional representation. The additional member seats are allocated from closed lists by the D'Hondt method, with constituency results being taken into account in the allocation.