Spain / Next Spanish General Election
Opina 360
Voting intention · published 1 Oct 2025
- Country
- 🇪🇸 Spain
- Election
- Next Spanish General Election
- Polling institute
- Opina 360
- Published
- 1 Oct 2025
- Fieldwork
- 25 Sept 2025 – 30 Sept 2025
- Sample size
- 1,203
- Margin of error
- ±2.8 est. (Not published: estimated from sample size (95%, simple random sample))
- Methodology
- Not published
Results
Opina 360, 1 Oct 2025: Partido Socialista Obrero Español leads with 30.4%, 3.0 points ahead of Partido Popular.
- Partido Socialista Obrero Español30.4%new
- Partido Popular27.4%new
- Vox20.6%new
- Sumar5.1%new
- Podemos3.8%new
- Esquerra Republicana de Catalunya1.8%new
- Euskal Herria Bildu1.5%new
- Se Acabó La Fiesta1.4%new
- Junts per Catalunya1.3%new
- Bloque Nacionalista Galego1.0%new
- Partido Nacionalista Vasco1.0%new
- Aliança Catalana0.7%new
- Canarian Coalition0.3%new
No earlier poll by this institute for this election, so no change is shown.
Note: Commissioned by Antena 3.
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.