Spain / Next Spanish General Election
Cluster17
Voting intention · published 31 Aug 2026
- Country
- 🇪🇸 Spain
- Election
- Next Spanish General Election
- Polling institute
- Cluster17
- Published
- 31 Aug 2026
- Fieldwork
- 22 Aug 2026 – 25 Aug 2026
- Sample size
- 1,637
- Margin of error
- ±2.4 est. (Not published: estimated from sample size (95%, simple random sample))
- Methodology
- Not published
Results
Cluster17, 31 Aug 2026: Partido Popular leads with 30.1%, 2.0 points ahead of Partido Socialista Obrero Español.
- Partido Popular30.1%new
- Partido Socialista Obrero Español28.1%new
- Vox16.1%new
- Sumar6.1%new
- Podemos3.6%new
- Esquerra Republicana de Catalunya2.0%new
- Se Acabó La Fiesta1.7%new
- Aliança Catalana1.6%new
- Junts per Catalunya1.6%new
- Euskal Herria Bildu1.3%new
- Partido Nacionalista Vasco1.1%new
No earlier poll by this institute for this election, so no change is shown.
Note: Commissioned by Agenda Pública.
How to read a poll
- Sample size is how many people were asked. More people means less random error, never none.
- ±3 is the margin of error: the real figure is likely within 3 points either way of the one shown.
- Two polls can differ because they were taken on different dates, with different methods and different samples.
- est. means the institute did not publish a margin of error, so it is estimated from the sample size.
- The average smooths this out: it combines recent polls, so one unusual poll cannot swing the picture.