WESTMINSTER POLL
| Labour | 27% |
|---|---|
| Reform UK | 25% |
| Conservative | 19% |
| Green | 11% |
| Liberal Democrats | 10% |
| Other | 5% |
| SNP | 3% |
| 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 Opinium Westminster voting-intention poll on 27%, followed by Reform UK on 25% and the Conservatives on 19%.
Compared with Opinium's previous poll (16–18 September 2026):
| Party | Previous | This poll | Change |
|---|---|---|---|
| Labour | 27% | 27% | – |
| Reform UK | 24% | 25% | +1 |
| Conservative | 18% | 19% | +1 |
| Green | 11% | 11% | – |
| Liberal Democrats | 10% | 10% | – |
| Other | 5% | 5% | – |
| SNP | 3% | 3% | – |
| Plaid Cymru | 1% | 1% | – |
Changes are in percentage points. Small movements between polls may reflect sampling variation rather than a sustained change in support.
For a wider comparison across pollsters, see the UK Decides Poll of Polls.
Opinium’s published Westminster voting-intention figures for fieldwork conducted 9-11 September 2026.
Opinium describes the survey as nationally and politically representative of UK adults aged 18+; see the original publication and data tables for the full methodology.
Source: Original poll publication