What is a constituency?
For a Senedd election, Wales is split into different voting areas called constituencies. When you vote in an election you are voting to elect someone to represent the constituency you live in.
What’s new?
At the 2026 Senedd election, Wales will be divided into 16 constituencies, replacing the 40 it has now.
Six Members of the Senedd (MS) will be elected in each of the new constituencies. This means that wherever you live in Wales, six Members will represent you and your community in the Senedd.
You can contact any or all of them about issues in your local area.
How were the new constituencies created?
The new constituencies have been decided by the Democracy and Boundary Commission Cymru (DBCC).
The new areas were created by pairing the 32 UK Parliament constituencies into 16 new Senedd constituencies. Other factors were also taken into account, including:
- Existing local government boundaries
- Road and transport links
- Geographical features such as rivers and mountains
- Local ties (including use of the Welsh language)
The DBCC ran two public consultations on the plans, and made changes based on the feedback they received. The final boundaries were published in March 2025.
Senedd constituencies for the 2026 election:
- Bangor Conwy Môn
- Clwyd
- Fflint Wrecsam
- Gwynedd Maldwyn
- Ceredigion Penfro
- Sir Gaerfyrddin
- Gŵyr Abertawe
- Brycheiniog Tawe Nedd
- Afan Ogwr Rhondda
- Pontypridd Cynon Merthyr
- Blaenau Gwent Caerffili Rhymni
- Sir Fynwy Torfaen
- Casnewydd Islwyn
- Caerdydd Penarth
- Caerdydd Ffynnon Taf
- Pen-y-bont Morgannwg
For further information and maps of the new constituency areas, see our Senedd Research article:
