3 election comparisons
Switzerland Sotomo: Election Poll for Switzerland's Parliamentary Election, September 11, 2025
Switzerland: Voting Intention Poll for Parliamentary Election
The bars show the results of this single poll; the chips show the change compared to the last election. Single poll by Sotomo: for Switzerland's Parliamentary election, fieldwork concluded September 11, 2025.
Changes since the last election on October 22, 2023
- Institute
- Sotomo
- Client
- N/A
- Survey Period
- August 25, 2025 – September 11, 2025
- Respondents
- 32,147
Based on this poll, the parties currently in government would win 81.0% of the parliamentary seats.
Who is leading according to the poll by Sotomo?
Who is leading according to the poll by Sotomo?
In the latest voting intention poll for Switzerland by Sotomo, SVP/UDC leads with 30.4%. Trailing are SP/PS with 18.8%, DM/LC with 13.6%, FDP/PLR with 13.3%, G/LV with 10.3%, GLP/PVL with 6.1% and EVP/PEV with 1.5%. Other parties achieve 6% of the votes.
What do the symbols mean?
What do the symbols mean?
To make parties comparable, we indicate their political orientation with symbols. These categories provide a rough classification for a quick overview. More detailed information on political stances can be found on the parties' subpages.
- Far-Left
- Left
- Centre-Left
- Center
- Transversal
- Unknown
- Centre-Right
- Right
- Far-Right
- Liberal
- Environment & Climate
- Regional
- Animal Welfare
- Satire
Seat projection based on this poll
Last on September 11, 2025
Deviations from the Election Trend
No significant deviations from the Election Trend
What is the PolitPro Score for polling institutes?
What is the PolitPro Score for polling institutes?
In the PolitPro Score for polling institutes, we assess the reliability of polling institutes based on their accuracy in elections and their deviation from the Election Trend. Significant deviations in party values compared to the Election Trend lead to deductions, as they can indicate favoritism or disadvantage for parties. The score has a maximum value of 100.
Coalition calculator: majorities based on this poll
Parties
Select parties to test coalitions.
PolitPro Analysis
Probability of an Absolute Majority
-
SVP
0%
-
SP
0%
-
DM
0%
Probability of Election Victory
-
SVP
100%
-
SP
<1%
-
DM
<1%
-
FDP
<1%
Probability of Entering Parliament
How does the PolitPro Analysis work?
How does the PolitPro Analysis work?
Election polls are not predictions, but snapshots with statistical fluctuations. To obtain a realistic picture, we daily simulate 100,000 election outcomes based on the PolitPro Election Trend using the 'Monte Carlo method'. In doing so, we include typical voter migration and political trends. Our algorithm tests various scenarios – from small shifts within camps to political surprises – to determine the actual chances of success for parties and coalitions.
Sotomo: Projected composition of parliament
Sotomo: Projected composition of parliament
This poll indicates 7 parties would clear Switzerland's electoral threshold and enter parliament: SVP/UDC with 65 seats, SP/PS with 40 seats, DM/LC with 29 seats, FDP/PLR with 28 seats, G/LV with 22 seats, GLP/PVL with 13 seats and EVP/PEV with 3 seats.
Switzerland's Electoral System Explained
Switzerland's Electoral System Explained
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Electoral Threshold and Hurdles
Electoral Threshold and Hurdles
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Government formation and coalition traditions
Government formation and coalition traditions
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