Green Party Surges to 17% in Polls, Triples Membership, Wins First By‑Election

For most of the past decade the Greens held only a single seat in Parliament. The 2024 general election left them with four seats, still a minor presence. Since then, declining trust in the Conservatives and Labour, coupled with economic strain, has driven voters to explore alternatives. The party’s leadership change in October 2025 brought Zack Polanski to the fore, and his vocal support for Palestinian rights has attracted new supporters while also drawing criticism. Inflation remains above target and public services face funding gaps, further eroding confidence in the incumbent governments.

- Recent opinion polls show the Green Party at roughly 17 % support, tying the Conservatives and leading Labour by one percentage point. - Membership figures rose from 65,000 in July 2025 to approximately 220,000, a more than threefold increase in less than a year. - In the Gorton and Denton by‑election, the Greens secured 40.6 % of the vote, delivering their first parliamentary by‑election victory.

These numbers indicate that the Greens are moving beyond a protest identity and establishing themselves as a viable electoral force. The surge reflects a broader voter appetite for parties that combine climate action with progressive social policies. At the same time, the party’s strong pro‑Palestinian stance has triggered accusations of antisemitism, echoing past controversies that affected Labour. How the leadership addresses these claims will influence internal unity and external credibility. Analysts note that if the Greens maintain their current trajectory, they could challenge Reform’s appeal among voters disillusioned with mainstream politics.