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Latest Opinion Poll for Switzerland (LeeWas, September 17, 2025)

September 16, 2025 - September 17, 2025

14755 respondents

Next Swiss General Election: 2027

The next Swiss General Election is expected in 2027.

Switzerland's Governing Coalition Retains Stable Majority

Based on the LeeWas projection, the incumbent governing parties would currently secure 82.5% of the parliamentary seats.

Who is leading in the latest poll from LeeWas?

According to the latest national poll in Switzerland by LeeWas, SVP/UDC leads with 29.8%. They are followed by SP/PS: 17.9%, DM/LC: 14%, FDP/PLR: 14%, G/LV: 9.7% and GLP/PVL: 7.4%. Other parties secure 7.2% of the votes.

Current Election Trend: Switzerland
Poll results, coalitions, and election data
All Election Polls
Latest surveys from all institutes and historical data
What do the parties stand for?
Information, comparisons, and data on parties in Switzerland
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Quality Check: How Reliable is the LeeWas Projection?

75

PolitPro Score

LeeWas achieved a PolitPro Score of 75 out of 100.

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Election Accuracy

On average, LeeWas's figures deviate by percentage points between their final pre-election polls and actual election results.

LeeWas at a Glance
Polling data, historical accuracy, and party bias
Which institutes are the most reliable?
Election accuracy and methodological reliability

Potential Majorities and Coalition Scenarios

No Electoral Threshold

There is no electoral threshold for the Swiss Federal Election.

Projected Parliamentary Composition (Source: LeeWas)

According to LeeWas, 6 parties are projected to surpass the electoral threshold and enter Switzerland's parliament: SVP/UDC with 65 representatives, SP/PS with 39 representatives, DM/LC with 31 representatives, FDP/PLR with 30 representatives, G/LV with 20 representatives and GLP/PVL with 15 representatives.

Switzerland's Electoral System

Switzerland's bicameral Federal Assembly features the 200-seat National Council and the 46-seat Council of States. The National Council employs proportional representation across cantons, while the Council of States largely uses a majority vote system. A distinctive element is 'panachage' and 'cumulation,' allowing voters to mix candidates from various party lists or cast multiple votes for specific individuals. This empowers citizens with substantial influence over the legislature's composition, moving beyond strict party affiliations.

Electoral Thresholds

Switzerland's federal elections notably lack an explicit percentage-based electoral threshold, unlike Germany's 5% hurdle. Instead, the de facto barrier for National Council entry emerges from the number of seats allocated per canton. This dynamic means smaller cantons with fewer mandates demand a substantially higher vote share for a seat, while larger cantons like Zurich can see parties secure representation with a smaller percentage.

Government Formation and Traditions

Swiss government formation defies the conventional coalition-opposition paradigm. The Federal Council, Switzerland's seven-member executive, is elected by the United Federal Assembly. For decades, its composition has adhered to the 'magic formula,' proportionally incorporating the nation's most powerful parties. This concordance system prioritizes achieving political solutions through broad consensus over transient majority coalitions.

Coalition Calculator
Which parties could form a stable majority?

Data Sources and Methodology

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