Opinium polling for The Observer, conducted 28-30 October 2026 among 2,050 UK adults. The Great Britain headline voting-intention figures are taken from the published data tables; the weighted headline base was 1,523.
WESTMINSTER POLL
Opinium – 28-30 October 2026
Fieldwork28–30 October 2026
Sample2,050
| Labour | 30% |
|---|---|
| Reform UK | 22% |
| Conservative | 20% |
| Liberal Democrats | 10% |
| Green | 8% |
| 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 30%, followed by Reform UK on 22% and the Conservatives on 20%.
Change since the previous Opinium poll
Compared with Opinium's previous poll (21–23 October 2026):
| Party | Previous | This poll | Change |
|---|---|---|---|
| Labour | 30% | 30% | – |
| Reform UK | 22% | 22% | – |
| Conservative | 20% | 20% | – |
| Liberal Democrats | 9% | 10% | +1 |
| Green | 10% | 8% | −2 |
| 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.
Other recent Opinium polls
For a wider comparison across pollsters, see the UK Decides Poll of Polls.
Source: Original poll publication