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September 2026 barometer
4,042 interviews · Spain · CATI
Fieldwork: Sep 1, 2026 to Sep 4, 2026
Preliminary release · Published: Sep 14, 2026
| Electoral list | % |
|---|---|
| PSOE | 31.0 |
| PP | 25.5 |
| VOX | 16.6 |
| SUMAR** | 5.7 |
| Podemos | 3.7 |
| ERC | 2.5 |
| Se Acabó la Fiesta | 1.8 |
| EH Bildu | 1.3 |
| BNG | 0.7 |
| Junts | 0.7 |
| EAJ-PNV | 0.7 |
| CCa | 0.2 |
| UPN*** | 0.1 |
| Otros partidos | 8.6 |
| En blanco | 1.0 |
Estimated share of valid votes for the survey period. These are not election results or a forecast.
Spanish population aged 18 and over.
Telephone interviews, sex and age quotas, and weighted data. The overall sample margin of error is not an interval for these estimates.
SUMAR excludes Podemos. CIS fixes UPN at a 0.1% reference estimate because of sampling volatility. Rounding may make the total differ from 100%.
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