electionstracker

Portugal 2009 European Parliament election

What was the result of the 2009 European Parliament election in Portugal?

Social Democratic Party won 8 of 22 seats with 34.0% of the vote. 36.8% 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 8 of 22 seats with 34.0% of the vote; 36.8% of registered voters cast a ballot, down 1.8 points on 2004.

  • Social Democratic Party 8 −1 seat 34.0% −0.7 points
  • Socialist Party 7 −5 seats 28.4% −17.9 points
  • Left Bloc 3 +2 seats 11.5% +6.4 points
  • Unitary Democratic Coalition 0 −2 seats 11.4% +1.9 points
  • CDS – People's Party 2 8.9%
  • Hope for Portugal Movement 0 1.6%
  • Portuguese Workers' Communist Party 0 0 seats 1.3% +0.2 points
  • Portuguese Communist Party 2
  • 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 Portugal 2004 European Parliament election, party by party.

Key numbers

  1. 34.0%

    Share of the vote won by Social Democratic Party

    It led Socialist Party by 5.5 points of the vote.

  2. +2 seats

    Seats gained by Left Bloc

    The largest gain in seats compared with 2004. Socialist Party lost 5 seats.

  3. 36.8%

    Voter turnout

    Down 1.8 points on 2004.

Seats and votes by party

PartySeats± seats%± pointsVotes
Social Democratic Party8−134.0−0.71,131,744
Socialist Party7−528.4−17.9946,818
Left Bloc3+211.5+6.4382,667
Unitary Democratic Coalitionwith Ecology Party -- Greens and Democratic Intervention0−211.4+1.9379,787
CDS – People's Party28.9298,423
Hope for Portugal Movement01.655,072
Portuguese Workers' Communist Party001.3+0.242,940
Portuguese Communist Party2

± is the change against the Portugal 2004 European Parliament election, party by party.

Votes by party
  • Social Democratic Party 1,131,744
  • Socialist Party 946,818
  • Left Bloc 382,667
  • Unitary Democratic Coalition 379,787
  • CDS – People's Party 298,423
  • Hope for Portugal Movement 55,072
  • Portuguese Workers' Communist Party 42,940
  • Portuguese Communist Party

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?

36.8% of the 9,704,559 registered voters cast a ballot (3,568,943 ballots), down 1.8 points on 2004. 3,333,195 of them were valid votes. The lowest turnout since 1994 in our data.

How do the votes compare with the seats?

  • Social Democratic Party34.0% of votes36.4% of seats
  • Socialist Party28.4% of votes31.8% of seats
  • Left Bloc11.5% of votes13.6% of seats
  • CDS – People's Party8.9% of votes9.1% of seats
  • Unitary Democratic Coalition11.4% of votes0.0% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 10.9 (0 when seats follow votes exactly); the effective number of parties is 4.3 by votes and 3.7 by seats; Social Democratic Party led Socialist Party by 5.5 points of the vote.

Time and source Data as of