electionstracker

Switzerland 1931 federal election

What was the result of the 1931 federal election in Switzerland?

Free Democratic Party of Switzerland won 52 of 187 seats with 26.9% of the vote. 78.8% of registered voters cast a ballot.

  • Switzerland
  • Held:
  • Final result
  • ParlGov, read 5 October 2026

Which party won the most seats?

Final results from ParlGov, read : Free Democratic Party of Switzerland won 52 of 187 seats with 26.9% of the vote; 78.8% of registered voters cast a ballot.

  • Social Democratic Party of Switzerland 49 28.7%
  • Free Democratic Party of Switzerland 52 26.9%
  • Christian Democratic People's Party of Switzerland 44 21.4%
  • Swiss People's Party 30 15.3%
  • Liberal Party of Switzerland 6 2.8%
  • Swiss Party of Labour 2 1.5%
  • Democratic Group 2 1.2%
  • Evangelical People's Party of Switzerland 1 1.0%
  • Seats won
  • Share of the vote
94 of 187 seats make a majority

Key numbers

  1. 26.9%

    Share of the vote won by Free Democratic Party of Switzerland

    Free Democratic Party of Switzerland won 52 of 187 seats. A majority needs 94.

  2. 78.8%

    Voter turnout

Seats and votes by party

Votes by party
  • Social Democratic Party of Switzerland 247,946
  • Free Democratic Party of Switzerland 232,562
  • Christian Democratic People's Party of Switzerland 184,602
  • Swiss People's Party 131,809
  • Liberal Party of Switzerland 24,573
  • Swiss Party of Labour 12,778
  • Democratic Group 10,726
  • Evangelical People's Party of Switzerland 8,454
  • Unnamed party with one seat

ParlGov lists parties with at least 1 percent of the vote or 2 seats, so the rows do not add up to the valid votes.

ParlGov marks results before 1945 as experimental: they may need revision, so we compare them with no other election.

How many people voted?

78.8% of the 1,118,841 registered voters cast a ballot (881,936 ballots). 866,575 of them were valid votes.

How do the votes compare with the seats?

  • Free Democratic Party of Switzerland26.9% of votes27.8% of seats
  • Social Democratic Party of Switzerland28.7% of votes26.2% of seats
  • Christian Democratic People's Party of Switzerland21.4% of votes23.5% of seats
  • Swiss People's Party15.3% of votes16.0% of seats
  • Liberal Party of Switzerland2.8% of votes3.2% of seats
  • Swiss Party of Labour1.5% of votes1.1% of seats
  • Democratic Group1.2% of votes1.1% of seats
  • Evangelical People's Party of Switzerland1.0% of votes0.5% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 2.6 (0 when seats follow votes exactly); the effective number of parties is 4.4 by votes and 4.4 by seats; Social Democratic Party of Switzerland led Free Democratic Party of Switzerland by 1.8 points of the vote.

Time and source Data as of