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Senedd voting intention - May 2026

Tyron Surmon Find Out Now Market Research

Tyron Surmon

6th May, 2026 | 3 mins read

Our Senedd (Welsh Parliament) voting intention survey shows Plaid Cymru even more clearly in the lead, with Labour in single digits

Find Out Now Senedd voting intention

Turnout adjusted, ‘Don’t know’ respondents squeezed. Full methodology listed below or in the data tables. Find Out Now interviewed a sample of 2,001 Welsh adults from 1st to 6th May which is nationally representative by: Gender, Age, Welsh region, Welsh speaking and 2024 General Election

Our methodology:

  • We ask respondents how likely they are to vote in the upcoming Senedd (Welsh Parliament) election. To those who said ‘definitely’ or ‘very likely’ we then ask their vote choice
  • If a respondent answers ‘Don’t know’ they see an additional question, prompting them again to give an answer. If they then give a valid vote choice they are included in the final calculation, but if they answer ‘Don’t know’ again they are excluded from the final headline calculation
  • If a respondent was eligible but didn’t vote at the last general election, they are only included in the final headline calculation if they say they are ‘definitely’ going to vote this time. This is because past voting behaviour is generally more predictive than their declared intentions
  • The final sample is filtered and weighted (more details here) to be nationally representative by Gender, Age, Welsh region, Welsh speaking and 2024 General Election

Full data tables can be found here

Find Out Now is an MRS company partner, a member of the British Polling Council and abides by their rules. To find out more about our research offer, please visit our services page or contact ask@findoutnow.co.uk