electionstracker

Finland 1958 parliamentary election

What was the result of the 1958 parliamentary election in Finland?

Democratic Union / Left Alliance won 50 of 200 seats with 23.2% of the vote. 75.0% of registered voters cast a ballot.

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

Which party won the most seats?

Final results from ParlGov, read : Democratic Union / Left Alliance won 50 of 200 seats with 23.2% of the vote; 75.0% of registered voters cast a ballot, down 4.9 points on 1954.

  • Democratic Union / Left Alliance 50 +7 seats 23.2% +1.6 points
  • Social Democratic Party of Finland 48 −6 seats 23.1% −3.1 points
  • Centre Party 48 −5 seats 23.1% −1.0 points
  • National Coalition Party 29 +5 seats 15.3% +2.5 points
  • Swedish People's Party of Finland 13 +1 seat 6.5% −0.3 points
  • National Progressive Party / [Finnish] Liberal People's Party 8 −5 seats 5.9% −2.0 points
  • Social Democratic Union of Workers and Smallholders 3 1.7%
  • Liberal League 0 0 seats 0.3% 0.0 points
  • Åland Coalition 1 0 seats 0.3% +0.1 points
  • Seats won
  • Change on the previous election at the right
  • Share of the vote
  • Share at the previous election
  • Change in points at the right

Changes are against the Finland 1954 parliamentary election, party by party.

101 of 200 seats make a majority

Key numbers

  1. 23.2%

    Share of the vote won by Democratic Union / Left Alliance

    Democratic Union / Left Alliance won 50 of 200 seats. A majority needs 101.

  2. +7 seats

    Seats gained by Democratic Union / Left Alliance

    The largest gain in seats compared with 1954. Social Democratic Party of Finland lost 6 seats.

  3. 75.0%

    Voter turnout

    Down 4.9 points on 1954.

Seats and votes by party

PartySeats± seats%± pointsVotes
Democratic Union / Left Alliance50+723.2+1.6450,220
Social Democratic Party of Finland48−623.1−3.1449,536
Centre Party48−523.1−1.0448,364
National Coalition Party29+515.3+2.5297,094
Swedish People's Party of Finland13+16.5−0.3126,365
National Progressive Party / [Finnish] Liberal People's Party8−55.9−2.0114,617
Social Democratic Union of Workers and Smallholders31.733,947
Liberal League000.30.06,424
Åland Coalition100.3+0.15,487

± is the change against the Finland 1954 parliamentary election, party by party.

Votes by party
  • Democratic Union / Left Alliance 450,220
  • Social Democratic Party of Finland 449,536
  • Centre Party 448,364
  • National Coalition Party 297,094
  • Swedish People's Party of Finland 126,365
  • National Progressive Party / [Finnish] Liberal People's Party 114,617
  • Social Democratic Union of Workers and Smallholders 33,947
  • Liberal League 6,424
  • Åland Coalition 5,487

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.

How many people voted?

75.0% of the 2,606,258 registered voters cast a ballot (1,954,397 ballots), down 4.9 points on 1954. 1,944,235 of them were valid votes.

How do the votes compare with the seats?

  • Democratic Union / Left Alliance23.2% of votes25.0% of seats
  • Centre Party23.1% of votes24.0% of seats
  • Social Democratic Party of Finland23.1% of votes24.0% of seats
  • National Coalition Party15.3% of votes14.5% of seats
  • Swedish People's Party of Finland6.5% of votes6.5% of seats
  • National Progressive Party / [Finnish] Liberal People's Party5.9% of votes4.0% of seats
  • Social Democratic Union of Workers and Smallholders1.7% of votes1.5% of seats
  • Åland Coalition0.3% of votes0.5% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 2.2 (0 when seats follow votes exactly); the effective number of parties is 5.2 by votes and 4.9 by seats; Democratic Union / Left Alliance led Centre Party by 0.1 points of the vote.

Time and source Data as of