Spain / Next Spanish General Election
CIS
Voting intention · published 11 Jun 2026
- Country
- 🇪🇸 Spain
- Election
- Next Spanish General Election
- Polling institute
- CIS
- Published
- 11 Jun 2026
- Fieldwork
- 1 Jun 2026 – 4 Jun 2026
- Sample size
- 4,024
- Margin of error
- ±1.5 est. (Not published: estimated from sample size (95%, simple random sample))
- Methodology
- Not published
Results
CIS, 11 Jun 2026: Partido Socialista Obrero Español leads with 31.3%, 4.2 points ahead of Partido Popular.
- Partido Socialista Obrero Español31.3%−4.9 percentage points
- Partido Popular27.1%+2.2 percentage points
- Vox15.8%−0.4 percentage points
- Sumar6.4%+0.7 percentage points
- Podemos2.8%+0.3 percentage points
- Esquerra Republicana de Catalunya1.9%−0.7 percentage points
- Se Acabó La Fiesta1.9%−0.5 percentage points
- Euskal Herria Bildu1.2%+0.3 percentage points
- Bloque Nacionalista Galego1.0%+0.3 percentage points
- Junts per Catalunya1.0%+0.2 percentage points
- Partido Nacionalista Vasco0.6%+0.1 percentage points
- Canarian Coalition0.2%+0.1 percentage points
- Unión del Pueblo Navarro0.1%±0.0 percentage points
Change in percentage points vs. the previous poll by the same institute for this election.
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.