Latest voting intention survey by Opinium for United Kingdom
In the latest voting intention survey for the election in United Kingdom conducted by Opinium, the parties received the following results: Reform UK 31%, Labour 21%, Tories 17%, Green Party 13%, Liberal Democrats 11%, Scottish National Party 3% and Plaid Cymru 1%. The voting intention survey interviewed a total of 2050 people during the period 28.11.2025 - 28.11.2025.
2050 participants
26.11.2025 - 28.11.2025
Opinium
Development since the last election on 05.07.2024
Seats in parliament
650
Majority requires 326 seats
Lab
141
21.7%
Greens
87
13.4%
SNP
20
3.1%
PC
6
0.9%
LDEM
73
11.2%
Con
114
17.5%
Reform
209
32.2%
Reform UK + Tories + Liberal Democrats
Reform UK + Green Party + Liberal Democrats
Labour + Tories + Green Party
Labour + Tories + Liberal Democrats
Labour + Green Party + Liberal Democrats + Scottish National Party + Plaid Cymru
Reform UK + Tories
Labour + Green Party + Liberal Democrats + Scottish National Party
74
PolitPro Score
Opinium achieves a score of 74/100 in the PolitPro Score.
What is the PolitPro Score?
The PolitPro Score evaluates the reliability of polling institutes based on their accuracy in elections and neutrality toward political parties. Significant biases in favor of or against parties compared to election trends result in deductions. The maximum score is 100.
Rating of parties
Comparison of historical poll results with overall election trends across all institutes (in %)
What are significant differences?
The PolitPro election trend, which calculates a time-weighted average value of current election polls, serves as a comparison value. A poll value is considered higher/lower if it is more than one percentage point higher/lower than the election trend. The overview shows all parties for which there is a deviation in a particular direction in at least 30% of the institute's election polls.
Accuracy in elections
1.6
Average deviation
On average, party poll results in Opinium pre-election polls deviate from the actual result by 1.6 percentage points.
Average Deviation of Pre-Election Polls from the Results of Recent Elections
| Deviation | Election | Rank |
|---|---|---|
|
2.4
|
Parliamentary Election in United Kingdom 2024 | 3/9 |
|
0.7
|
Parliamentary Election in United Kingdom 2019 | 4/12 |
How is an institute’s accuracy calculated?
The accuracy indicates how closely pre-election polls matched the actual election results.