Plaid Cymru is projected to be the largest party in the upcoming Senedd election, according to a new YouGov opinion poll [1].
The results suggest a significant shift in the Welsh political landscape as parties compete for control of the parliament. This projection comes just days before voters head to the polls on May 7 [5].
The poll, released on March 24 [4], utilized MRP modelling for ITV Cymru Wales in partnership with Cardiff University. The data accounts for the implementation of the new d’Hondt voting system, which alters how seats are allocated based on the popular vote [1].
According to the data, Plaid Cymru, led by Rhun ap Iorwerth, holds a vote share of 33% [1]. The party is projected to win 43 of the 96 total seats in the Senedd [3].
Reform UK follows closely in the projections with a 29% vote share [2]. The proximity between the two leading parties indicates a highly competitive environment for the remaining seats, a dynamic that could influence future coalition possibilities.
The Senedd election serves as a critical test for the new electoral system and the current political momentum of nationalist and populist movements within Wales. The results of the poll reflect a volatile race where small shifts in voter turnout could alter the final seat distribution [1].
“Plaid Cymru is projected to be the largest party in the upcoming Senedd election”
The projection of Plaid Cymru as the largest party suggests a potential move toward Welsh independence or increased autonomy. Because the poll predicts 43 seats out of 96, Plaid Cymru would lack an absolute majority, meaning the formation of the next government will likely depend on complex negotiations and potential coalitions with other parties.




