Current election polls and polling data from 40dB

Latest voting intention survey by 40dB for Spain

In the latest voting intention survey for the election in Spain conducted by 40dB, the parties received the following results: Partido Popular 32.8%, PSOE 29.8%, Vox 13.9%, Sumar 5.4%, Podemos 3.8% and SALF 1.6%. The voting intention survey interviewed a total of 2000 people during the period 25.05.2025 - 25.05.2025.
2000 participants
23.05.2025 - 25.05.2025
40dB
Development since the last election on 23.07.2023
PP
32.8
-1.1
PSOE
29.8
+0.5
Vox
13.9
+0.5
Sumar
5.4
±0.0
POD
3.8
+0.7
SALF
1.6
-0.5
Others
12.7
-0.1

Seats in parliament

350
Majority requires 176 seats
Sumar
22
6.3%
POD
15
4.3%
PSOE
122
34.9%
PP
134
38.3%
Vox
57
16.3%
Partido Popular + PSOE
73.1%
Partido Popular + Vox
54.6%
PSOE + Sumar + Podemos
45.4%

81

PolitPro Score

40dB achieves a score of 81/100 in the PolitPro Score.

What is the PolitPro Score?

The PolitPro Score evaluates the reliability of polling institutes based on their accuracy in elections and neutrality toward political parties. Significant biases in favor of or against parties compared to election trends result in deductions. The maximum score is 100.

Rating of parties

Comparison of historical poll results with overall election trends across all institutes (in %)

Lower
Similar
Higher
POD
25
75
0
PP
50
47
3
PSOE
5
66
29
SALF
0
88
13
Sumar
33
62
5
Vox
11
76
13

What are significant differences?

The PolitPro election trend, which calculates a time-weighted average value of current election polls, serves as a comparison value. A poll value is considered higher/lower if it is more than one percentage point higher/lower than the election trend. The overview shows all parties for which there is a deviation in a particular direction in at least 30% of the institute's election polls.

Accuracy in elections

1.0

Average deviation

On average, party poll results in 40dB pre-election polls deviate from the actual result by 1.0 percentage points.

Average Deviation of Pre-Election Polls from the Results of Recent Elections

How is an institute’s accuracy calculated?

The accuracy indicates how closely pre-election polls matched the actual election results.