electionstracker

Japan 1963 general election

What was the result of the 1963 general election in Japan?

Liberal Democratic Party won 294 of 467 seats with 56.0% of the vote. 71.1% 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 294 of 467 seats with 56.0% of the vote; 71.1% of registered voters cast a ballot, down 2.4 points on 1960.

  • Liberal Democratic Party 294 −6 seats 56.0% −2.1 points
  • Japan Socialist Party 144 0 seats 29.0% +1.6 points
  • Democratic Socialist Party 23 +6 seats 7.4% −1.4 points
  • Japanese Communist Party 5 +2 seats 4.0% +1.1 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 Japan 1960 general election, party by party.

234 of 467 seats make a majority

Key numbers

  1. 56.0%

    Share of the vote won by Liberal Democratic Party

    Liberal Democratic Party won 294 of 467 seats. A majority needs 234.

  2. +6 seats

    Seats gained by Democratic Socialist Party

    The largest gain in seats compared with 1960. Liberal Democratic Party lost 6 seats.

  3. 71.1%

    Voter turnout

    Down 2.4 points on 1960.

Seats and votes by party

PartySeats± seats%± pointsVotes
Liberal Democratic Party294−656.0−2.122,972,892
Japan Socialist Party144029.0+1.611,906,766
Democratic Socialist Party23+67.4−1.43,023,302
Japanese Communist Party5+24.0+1.11,646,477
Independents1−13.4+1.01,407,339

± is the change against the Japan 1960 general election, party by party.

Votes by party
  • Liberal Democratic Party 22,972,892
  • Japan Socialist Party 11,906,766
  • Democratic Socialist Party 3,023,302
  • Japanese Communist Party 1,646,477
  • Independents 1,407,339

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?

71.1% of the 58,281,678 registered voters cast a ballot (41,458,946 ballots), down 2.4 points on 1960. 41,016,541 of them were valid votes. The lowest turnout since 1947 in our data.

How do the votes compare with the seats?

  • Liberal Democratic Party56.0% of votes63.0% of seats
  • Japan Socialist Party29.0% of votes30.8% of seats
  • Democratic Socialist Party7.4% of votes4.9% of seats
  • Japanese Communist Party4.0% of votes1.1% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 6.2 (0 when seats follow votes exactly); the effective number of parties is 2.5 by votes and 2.0 by seats; Liberal Democratic Party led Japan Socialist Party by 27.0 points of the vote.

Time and source Data as of