electionstracker

Portugal 1987 European Parliament election

What was the result of the 1987 European Parliament election in Portugal?

Social Democratic Party won 10 of 24 seats with 38.4% of the vote. 72.4% of registered voters cast a ballot.

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

Which party won the most seats?

Final results from ParlGov, read : Social Democratic Party won 10 of 24 seats with 38.4% of the vote; 72.4% of registered voters cast a ballot.

  • Social Democratic Party 10 38.4%
  • Socialist Party 6 23.1%
  • CDS – People's Party 4 15.8%
  • Unitary Democratic Coalition 3 11.8%
  • Democratic Renewal Party 1 4.5%
  • People's Monarchist Party 0 2.8%
  • Democratic Intervention 0
  • Seats won
  • Share of the vote

Key numbers

  1. 38.4%

    Share of the vote won by Social Democratic Party

    It led Socialist Party by 15.4 points of the vote.

  2. 72.4%

    Voter turnout

Seats and votes by party

PartySeats%Votes
Social Democratic Party1038.42,111,828
Socialist Party623.11,267,672
CDS – People's Party415.8868,718
Unitary Democratic Coalitionwith Ecology Party -- Greens and Portuguese Communist Party311.8648,700
Democratic Renewal Party14.5250,158
People's Monarchist Party02.8155,990
Democratic Intervention0
Votes by party
  • Social Democratic Party 2,111,828
  • Socialist Party 1,267,672
  • CDS – People's Party 868,718
  • Unitary Democratic Coalition 648,700
  • Democratic Renewal Party 250,158
  • People's Monarchist Party 155,990
  • Democratic Intervention

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 counts an alliance's votes and seats under its first party: such a row names the allies it counts.

How many people voted?

72.4% of the 7,787,603 registered voters cast a ballot (5,639,650 ballots). 5,496,935 of them were valid votes.

How do the votes compare with the seats?

  • Social Democratic Party38.4% of votes41.7% of seats
  • Socialist Party23.1% of votes25.0% of seats
  • CDS – People's Party15.8% of votes16.7% of seats
  • Unitary Democratic Coalition11.8% of votes12.5% of seats
  • Democratic Renewal Party4.5% of votes4.2% of seats
  • People's Monarchist Party2.8% of votes0.0% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 3.4 (0 when seats follow votes exactly); the effective number of parties is 4.1 by votes and 3.6 by seats; Social Democratic Party led Socialist Party by 15.4 points of the vote.

What else was on the same day?

Time and source Data as of