electionstracker

Japan 1958 general election

What was the result of the 1958 general election in Japan?

Liberal Democratic Party won 298 of 467 seats with 59.0% of the vote. 77.0% of registered voters cast a ballot.

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

Which party won the most seats?

Final results from ParlGov, read : Liberal Democratic Party won 298 of 467 seats with 59.0% of the vote; 77.0% of registered voters cast a ballot, up 1.2 points on 1955.

  • Liberal Democratic Party 298 59.0%
  • Japan Socialist Party 167 33.1%
  • Japanese Communist Party 1 −1 seat 2.5% +0.5 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 Japan 1955 general election, party by party.

234 of 467 seats make a majority

Key numbers

  1. 59.0%

    Share of the vote won by Liberal Democratic Party

    Liberal Democratic Party won 298 of 467 seats. A majority needs 234.

  2. +0.5 points

    Share of the vote gained by Japanese Communist Party

    The largest gain in votes compared with 1955.

  3. 77.0%

    Voter turnout

    Up 1.2 points on 1955.

Seats and votes by party

PartySeats± seats%± pointsVotes
Liberal Democratic Party29859.023,480,170
Japan Socialist Party16733.113,155,715
Independents14.91,944,038
Japanese Communist Party1−12.5+0.51,012,035

± is the change against the Japan 1955 general election, party by party.

Votes by party
  • Liberal Democratic Party 23,480,170
  • Japan Socialist Party 13,155,715
  • Independents 1,944,038
  • Japanese Communist Party 1,012,035

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?

77.0% of the 52,013,529 registered voters cast a ballot (40,042,489 ballots), up 1.2 points on 1955. 39,751,665 of them were valid votes. The highest turnout of this kind in our data, which begins in 1946.

How do the votes compare with the seats?

  • Liberal Democratic Party59.0% of votes63.8% of seats
  • Japan Socialist Party33.1% of votes35.8% of seats
  • Japanese Communist Party2.5% of votes0.2% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 5.4 (0 when seats follow votes exactly); the effective number of parties is 2.2 by votes and 1.9 by seats; Liberal Democratic Party led Japan Socialist Party by 25.9 points of the vote.

Time and source Data as of