WESTMINSTER POLL
Deltapoll – 17-20 July 2026
Fieldwork17–20 July 2026
Sample2,027
| Labour | 28% |
|---|---|
| Reform UK | 28% |
| Conservative | 18% |
| Green | 10% |
| Liberal Democrats | 10% |
| SNP | 3% |
| Other | 2% |
| Plaid Cymru | 1% |
Party figures are shown where available in our records, including SNP and Plaid Cymru. A missing entry does not mean zero. Other follows the pollster's published grouping.
Labour led this Deltapoll Westminster voting-intention poll on 28%, followed by Reform UK on 28% and the Conservatives on 18%.
Change since the previous Deltapoll poll
Compared with Deltapoll's previous poll (12–15 June 2026):
| Party | Previous | This poll | Change |
|---|---|---|---|
| Labour | 20% | 28% | +8 |
| Reform UK | 28% | 28% | – |
| Conservative | 17% | 18% | +1 |
| Green | 13% | 10% | −3 |
| Liberal Democrats | 12% | 10% | −2 |
| SNP | 3% | 3% | – |
| Other | 4% | 2% | −2 |
| Plaid Cymru | 1% | 1% | – |
Changes are in percentage points. Small movements between polls may reflect sampling variation rather than a sustained change in support.
Other recent Deltapoll polls
For a wider comparison across pollsters, see the UK Decides Poll of Polls.
Source: Original poll publication