What's your Senedd constituency?

On 7 May 2026, voters in Wales will head to the polls for the next Senedd election.

It is likely to be one of the most consequential elections to Cardiff Bay since the National Assembly for Wales was established in 1999.

A brand new set of constituencies has been created for this election as part of wider changes to the way the Senedd is elected.

Here's a brief guide to the new electoral map.

Currently the Senedd has 60 members.

Forty of them are elected to represent individual constituencies.

The remaining 20 are regional Members of the Senedd (MS), with four politicians elected from each of the five electoral regions across Wales.

But next year the total number of MSs in Cardiff Bay is increasing to 96, and the electoral map is being completely redrawn.

The existing constituencies and regions will all go.

They'll be replaced with 16 new, larger constituencies and each one will be represented by six MSs.

Some of the new constituencies are vast, with Gwynedd Maldwyn stretching from the westernmost tip of the Llyn Peninsula all the way to the border with England.

Here's the full list of the new constituencies:

• Bangor Conwy Môn - a list of the candidates is here.
• Clwyd - a list of the candidates is here.
• Fflint Wrecsam -a list of the candidates is here.
• Gwynedd Maldwyn - a list of the candidates is here.
• Ceredigion Penfro - a list of the candidates is here.
• Sir Gaerfyrddin - a list of the candidates is here.
• Gŵyr Abertawe - a list of the candidates is here.
• Brycheiniog Tawe Nedd - a list of the candidates is here.
• Afan Ogwr Rhondda - a list of the candidates is here.
• Pontypridd Cynon Merthyr - a list of the candidates is here.
• Blaenau Gwent Caerffili Rhymni - a list of the candidates is here.
• Sir Fynwy Torfaen - a list of the candidates is here.
• Casnewydd Islwyn - a list of the candidates is here.
• Caerdydd Penarth - a list of the candidates is here.
• Caerdydd Ffynnon Taf - a list of the candidates is here.
• Pen-y-bont Bro Morgannwg - a list of the candidates is here.

To search for who you can vote for in your area using your post code, go here.

The new map has been drawn up by Democracy and Boundary Commission Cymru.

Because of a lack of time ahead of the next Senedd election, the commission was told to take the 32 Welsh constituencies used at the last Westminster election and pair them up to create 16 new super-constituencies.

The commission was told the paired-up seats had to be "contiguous", and it interpreted this to mean that there had to be a direct road link between them.

The commission will be able to review the map following the election and consider changes ahead of the next vote in 2030.

The commission was asked to try to come up with a single name for each of the new constituencies.

It believes the names chosen "are acceptable and recognisable for people across Wales".

However, while language campaigners have welcomed the decision to use Welsh-only names, others have criticised it.

Welsh Conservative MS Andrew RT Davies said that because Wales is a bilingual country, the constituency names "should be in both languages".

• For easy-to-understand guides to the 2026 Senedd Elections visit BBC Bitesize.