Data source

Senedd constituencies, 2026 review

Published by Democracy and Boundary Commission Cymru. The Senedd constituency of a Welsh postcode.

The copy we hold

  • CoversWales
  • Our copyFinal determinations, read 27 October 2026
  • How oftenLoaded again by hand when the publisher puts out a new release
  • LicenceOpen Government Licence v3.0

How we use it

Since the Senedd election of 7 May 2026, each of Wales's 16 Senedd constituencies is two UK Parliament constituencies put together, as the Commission determined. We read a postcode's UK Parliament constituency from the ONS Postcode Directory and give the Senedd constituency it is part of. Members of the Senedd are not named here: the Senedd's terms do not allow its material to be used alongside advertising, so we link to its own Find a Member page.

Open the original from the publisher

Where it is on this site

Postcode pages

The credit it asks for

© Democracy and Boundary Commission Cymru, licensed under the Open Government Licence.

It is published under the Open Government Licence v3.0.

Each page that shows it names it in a short line beside the figures, linked here, and gives this credit once at the foot of the page.

Something wrong?

If a figure from this source looks wrong on any page, report it and we will check it against the original.

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