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Deltapoll United Kingdom Poll, 21 May 2026 | Pollytic

United Kingdom / Next UK General Election

Deltapoll

Voting intention · published 21 May 2026

Country: 🇬🇧 United Kingdom
Election: Next UK General Election
Polling institute: Deltapoll
Published: 21 May 2026
Fieldwork: 15 May 2026 – 18 May 2026
Sample size: 1,921
Methodology: Not published

Results

Reform UK28.0%−1.0 percentage points
Labour Party20.0%−1.0 percentage points
Conservative Party17.0%−2.0 percentage points
Green Party13.0%+1.0 percentage points
Liberal Democrats11.0%+2.0 percentage points
Scottish National Party5.0%+2.0 percentage points
Plaid Cymru1.0%±0.0 percentage points

Change in percentage points vs. the previous poll by the same institute for this election.

Area: GB. Collected from Wikipedia (Opinion polling for the next United Kingdom general election, section 2026).

Source

Deltapoll

Published by deltapoll.co.uk

View original source↗ (opens in a new tab)

https://deltapoll.co.uk/wp-content/uploads/2026/05/260521_Deltapoll-Burnham.pdf

This poll was conducted by Deltapoll. Pollytic republishes the headline figures with attribution.

Polls are estimates of public opinion and are not election results. How we handle polls