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Each poll as published, with its pollster, fieldwork dates, sample size and a link to the source.

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.

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505 polls · page 1 of 26 · Clear filters

Polls with institute, dates, sample, margin of error, methodology and results
Institute	Date	Fieldwork	Sample	MoE	Method	Voting intention	Source
CIS 🇪🇸 Spain · Next Spanish General Election	14 Oct 2026	1 Oct 2026 – 6 Oct 2026	5,025	±1.4 est. (Not published: estimated from sample size (95%, simple random sample))	—	PSOE 34.0% PP 22.2% Vox 17.1% Sumar 6.1% Podemos 3.1% ERC 3.0% SALF 1.8% EH Bildu 1.6% Junts 1.1% BNG 0.9% PNV 0.6% CCa 0.2% UPN 0.1%	Source for CIS poll (opens in a new tab)
GESOP 🇪🇸 Spain · Next Spanish General Election	12 Oct 2026	6 Oct 2026 – 8 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 28.7% PSOE 26.1% Vox 18.9% Sumar 8.0% Podemos 2.6% ERC 2.5% SALF 2.0% Junts 1.9%	Source for GESOP poll (opens in a new tab)
GAD3 🇪🇸 Spain · Next Spanish General Election	12 Oct 2026	6 Oct 2026 – 8 Oct 2026	1,077	±3.0 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.4% PSOE 26.4% Vox 18.2% Sumar 7.4% ERC 2.6% Podemos 2.3% SALF 1.8% Junts 1.5% EH Bildu 1.5% AA 1.0% PNV 1.0% BNG 0.9% CCa 0.4% UPN 0.1%	Source for GAD3 poll (opens in a new tab)
EM-Analytics 🇪🇸 Spain · Next Spanish General Election	11 Oct 2026	5 Oct 2026 – 9 Oct 2026	4,125	±1.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.5% PSOE 26.9% Vox 19.1% Sumar 6.0% Podemos 3.4% ERC 2.0% SALF 1.7% EH Bildu 1.4% AA 1.1% Junts 1.1% PNV 1.1% BNG 1.0% CCa 0.3% UPN 0.2%	Source for EM-Analytics poll (opens in a new tab)
SocioMétrica 🇪🇸 Spain · Next Spanish General Election	11 Oct 2026	10 Oct 2026 – 11 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 32.6% PSOE 26.2% Vox 18.8% Sumar 5.8% Podemos 2.8% SALF 2.1% ERC 2.0% Junts 1.5% EH Bildu 1.3% BNG 0.9% AA 0.9% PNV 0.8% CCa 0.5% UPN 0.2%	Source for SocioMétrica poll (opens in a new tab)
Hamalgama Métrica 🇪🇸 Spain · Next Spanish General Election	11 Oct 2026	5 Oct 2026 – 8 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 33.4% PSOE 25.3% Vox 19.6% Sumar 5.4% Podemos 3.3% ERC 1.9% Junts 1.7% EH Bildu 1.3% PNV 0.9% BNG 0.8% CCa 0.5% UPN 0.2%	Source for Hamalgama Métrica poll (opens in a new tab)
Target Point 🇪🇸 Spain · Next Spanish General Election	11 Oct 2026	6 Oct 2026 – 9 Oct 2026	1,002	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 32.0% PSOE 25.9% Vox 18.7% Sumar 6.9% Podemos 3.4% SALF 1.3%	Source for Target Point poll (opens in a new tab)
Sigma Dos 🇪🇸 Spain · Next Spanish General Election	11 Oct 2026	11 Oct 2026 – 11 Oct 2026	—	—	—	PP 31.9% PSOE 25.3% Vox 19.1% Sumar 7.6% Podemos 3.1% ERC 2.6% Junts 1.2% EH Bildu 1.1% BNG 0.9% PNV 0.9% AA 0.8% CCa 0.5% UPN 0.2%	Source for Sigma Dos poll (opens in a new tab)
DYM 🇪🇸 Spain · Next Spanish General Election	9 Oct 2026	5 Oct 2026 – 7 Oct 2026	1,011	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 34.0% PSOE 28.2% Vox 18.2% Podemos 3.6% Sumar 3.6% SALF 0.5%	Source for DYM poll (opens in a new tab)
40dB 🇪🇸 Spain · Next Spanish General Election	9 Oct 2026	7 Oct 2026 – 8 Oct 2026	800	±3.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.9% PSOE 28.1% Vox 18.9% Sumar 5.3% Podemos 2.3% SALF 1.8%	Source for 40dB poll (opens in a new tab)
InvyMark 🇪🇸 Spain · Next Spanish General Election	9 Oct 2026	9 Oct 2026 – 9 Oct 2026	—	—	—	PP 32.8% PSOE 28.0% Vox 18.8% Sumar 6.3% Podemos 3.2% ERC 1.9% SALF 1.8% EH Bildu 1.5% Junts 1.2% PNV 1.1%	Source for InvyMark poll (opens in a new tab)
IMOP 🇪🇸 Spain · Next Spanish General Election	9 Oct 2026	5 Oct 2026 – 7 Oct 2026	900	±3.3 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 30.4% PSOE 26.5% Vox 19.0% Sumar 7.6% Podemos 2.3% ERC 2.2% SALF 1.9% EH Bildu 1.3% BNG 1.1% Junts 1.1% AA 1.0% PNV 0.9% CCa 0.6% UPN 0.2%	Source for IMOP poll (opens in a new tab)
NC Report 🇪🇸 Spain · Next Spanish General Election	8 Oct 2026	1 Oct 2026 – 6 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 34.1% PSOE 25.0% Vox 18.2% Sumar 5.3% Podemos 3.9% Junts 2.9% ERC 1.8% EH Bildu 1.4% PNV 0.9% BNG 0.7% CCa 0.4% UPN 0.2%	Source for NC Report poll (opens in a new tab)
Data10 🇪🇸 Spain · Next Spanish General Election	5 Oct 2026	2 Oct 2026 – 2 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 34.0% PSOE 26.1% Vox 18.6% Sumar 5.2% Podemos 4.3% ERC 1.9% Junts 1.5% SALF 1.4% EH Bildu 1.4% BNG 1.0% PNV 0.8% AA 0.5% CCa 0.3% UPN 0.2%	Source for Data10 poll (opens in a new tab)
40dB 🇪🇸 Spain · Next Spanish General Election	5 Oct 2026	25 Sept 2026 – 28 Sept 2026	2,000	±2.2 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.6% PSOE 27.4% Vox 18.4% Sumar 5.6% Podemos 2.7% SALF 2.0%	Source for 40dB poll (opens in a new tab)
SocioMétrica 🇪🇸 Spain · Next Spanish General Election	4 Oct 2026	1 Oct 2026 – 3 Oct 2026	1,000	±3.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 33.4% PSOE 26.5% Vox 18.1% Sumar 5.3% Podemos 3.1% ERC 2.2% SALF 2.2% EH Bildu 1.3% Junts 1.2% PNV 1.0% BNG 0.9% CCa 0.6% UPN 0.2%	Source for SocioMétrica poll (opens in a new tab)
Sigma Dos 🇪🇸 Spain · Next Spanish General Election	4 Oct 2026	22 Sept 2026 – 1 Oct 2026	2,116	±2.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 32.6% PSOE 25.6% Vox 18.3% Sumar 6.6% Podemos 3.3% ERC 2.5% EH Bildu 1.3% Junts 1.1% Aliança.cat 1.0% PNV 1.0% BNG 0.9% AA 0.8% CCa 0.5% UPN 0.2%	Source for Sigma Dos poll (opens in a new tab)
EM-Analytics 🇪🇸 Spain · Next Spanish General Election	4 Oct 2026	2 Oct 2026 – 3 Oct 2026	8,171	±1.1 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.3% PSOE 26.9% Vox 19.4% Sumar 6.3% Podemos 3.4% ERC 2.0% SALF 1.7% EH Bildu 1.4% AA 1.1% Junts 1.1% PNV 1.1% BNG 1.0% CCa 0.3% UPN 0.2%	Source for EM-Analytics poll (opens in a new tab)
Winston 🇪🇸 Spain · Next Spanish General Election	4 Oct 2026	29 Sept 2026 – 1 Oct 2026	1,201	±2.8 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 31.3% PSOE 24.9% Vox 19.1% Sumar 6.8% Podemos 3.9%	Source for Winston poll (opens in a new tab)
Ateneo del Dato 🇪🇸 Spain · Next Spanish General Election	3 Oct 2026	29 Sept 2026 – 1 Oct 2026	1,500	±2.5 est. (Not published: estimated from sample size (95%, simple random sample))	—	PP 33.2% PSOE 27.5% Vox 19.2% Sumar 7.0% Podemos 3.3%	Source for Ateneo del Dato poll (opens in a new tab)

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