Spain: Poll by 40dB from 31.03.2025

Spain: Polling data

PP
32.6
±0.0
PSOE
29.5
+1.1
Vox
14.1
-0.1
Sumar
5.1
-0.8
POD
3.3
-0.1
SALF
2.7
+0.2
Others
12.7
-0.3
Development since the last election on 23.07.2023
PP
-0.5
PSOE
-2.2
Vox
+1.7
Sumar
-7.2
POD
New
SALF
New
40dB – 2000 respondents – 28.03.2025-31.03.2025

Next election: 2027

The next parliamentary election in Spain is expected to take place in 2027.

Institute often rates Partido Popular lower

In 53% of election polls 40dB rates Partido Popular lower than the general election trend of all institutes.

Institute often rates PSOE higher

In 31% of election polls, 40dB rates PSOE higher than the general election trend of all institutes.

Institute often rates Sumar lower

In 32% of election polls 40dB rates Sumar lower than the general election trend of all institutes.

Election poll results

Spain - The latest poll for the Parliamentary Election in Spain from 40dB shows the following results: Partido Popular 32.6%, PSOE 29.5%, Vox 14.1%, Sumar 5.1%, Podemos 3.3% and SALF 2.7%. If an election were held in Spain this Sunday, Vox might gain the most in voter favorability with +1.7 growth since the last election. Sumar, on the other hand, would lose the most votes (-7.2) in the election barometer compared to the last election result.

Pedro Sánchez is currently governing with a Centre-left-wing coalition from PSOE and Sumar. With 41.1% of virtual seats, the government could fail to remain in office.

The election survey was collected by 40dB. For this purpose, 2000 persons were asked about their party preference in a period of 3 days (28.03.2025 - 31.03.2025).

Coalition possibilities

350
Majority requires 176 seats
Sumar
21
6%
POD
13
3.7%
PSOE
123
35.1%
PP
135
38.6%
Vox
58
16.6%
Partido Popular + PSOE
73.7%
Partido Popular + Vox
55.1%
PSOE + Sumar + Podemos
44.9%

Frequently asked questions about election polls

Election poll results

This election poll on the parliamentary election in Spain was conducted by 40dB. The survey took place between 28.03.2025 and 31.03.2025 among 2000 eligible voters. After this election poll would get Partido Popular 32.6%, PSOE 29.5%, Vox 14.1%, Sumar 5.1%, Podemos 3.3% and SALF 2.7%.

How reliable are election polls?

Election polls depict the current political mood and are not a forecast for the next upcoming election. Due to the polling method, the margin of error of each party's score is 1.5 to 3 percentage points, depending on the level of the score. For this reason, many polling institutes do not mention minor parties until values of around 3 percent are reached, as it is difficult to make serious statements below this level.

What should you look out for in election polls?

Pay attention to a sufficiently large sample size in polls. This should be at least 1000 respondents. Also pay attention to which institute is conducting the poll and who the clients are. Some institutes tend to rate certain parties too high or too low.
How to embed the election trend on your website:
  1. Copy code below
  2. Paste code on your website
  3. Done!
Copy code
Copied!