electionstracker

Poland 2005 parliamentary election

What was the result of the 2005 parliamentary election in Poland?

Law and Justice won 155 of 460 seats with 27.0% of the vote. 40.5% of registered voters cast a ballot.

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

Which party won the most seats?

Final results from ParlGov, read : Law and Justice won 155 of 460 seats with 27.0% of the vote; 40.5% of registered voters cast a ballot, down 5.8 points on 2001.

  • Law and Justice 155 +111 seats 27.0% +17.5 points
  • Civic Platform 133 +68 seats 24.1% +11.4 points
  • Self-Defence of the Republic of Poland 56 +3 seats 11.4% +1.2 points
  • Democratic Left Alliance 55 −145 seats 11.3% −29.7 points
  • League of Polish Families 34 −4 seats 8.0% +0.1 points
  • Polish People's Party 25 −17 seats 7.0% −2.0 points
  • Social Democracy of Poland 0 3.9%
  • Democratic / Freedom / Union 0 0 seats 2.5% −0.7 points
  • German minority in Poland 2 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 Poland 2001 parliamentary election, party by party.

231 of 460 seats make a majority

Key numbers

  1. 27.0%

    Share of the vote won by Law and Justice

    Law and Justice won 155 of 460 seats. A majority needs 231.

  2. +111 seats

    Seats gained by Law and Justice

    The largest gain in seats compared with 2001. Democratic Left Alliance lost 145 seats.

  3. 40.5%

    Voter turnout

    Down 5.8 points on 2001.

Seats and votes by party

PartySeats± seats%± pointsVotes
Law and Justice155+11127.0+17.53,185,714
Civic Platform133+6824.1+11.42,849,259
Self-Defence of the Republic of Poland56+311.4+1.21,347,355
Democratic Left Alliance55−14511.3−29.71,335,257
League of Polish Familieswith Catholic-National Movement34−48.0+0.1940,762
Polish People's Party25−177.0−2.0821,656
Social Democracy of Polandwith Labour Union03.9459,380
Democratic / Freedom / Union002.5−0.7289,276
Real Politics Union / Congress of the New Right01.6185,885
Movement for the Reconstruction of Poland01.1124,038
German minority in Poland200.3−0.134,469

± is the change against the Poland 2001 parliamentary election, party by party.

Votes by party
  • Law and Justice 3,185,714
  • Civic Platform 2,849,259
  • Self-Defence of the Republic of Poland 1,347,355
  • Democratic Left Alliance 1,335,257
  • League of Polish Families 940,762
  • Polish People's Party 821,656
  • Social Democracy of Poland 459,380
  • Democratic / Freedom / Union 289,276
  • Real Politics Union / Congress of the New Right 185,885
  • Movement for the Reconstruction of Poland 124,038
  • German minority in Poland 34,469

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?

40.5% of the 30,229,031 registered voters cast a ballot (12,244,903 ballots), down 5.8 points on 2001. 11,804,676 of them were valid votes. The lowest turnout of this kind in our data, which begins in 1991.

How do the votes compare with the seats?

  • Law and Justice27.0% of votes33.7% of seats
  • Civic Platform24.1% of votes28.9% of seats
  • Self-Defence of the Republic of Poland11.4% of votes12.2% of seats
  • Democratic Left Alliance11.3% of votes12.0% of seats
  • League of Polish Families8.0% of votes7.4% of seats
  • Polish People's Party7.0% of votes5.4% of seats
  • German minority in Poland0.3% of votes0.4% of seats
  • Social Democracy of Poland3.9% of votes0.0% of seats
  • Democratic / Freedom / Union2.5% of votes0.0% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 6.9 (0 when seats follow votes exactly); the effective number of parties is 5.9 by votes and 4.3 by seats; Law and Justice led Civic Platform by 2.9 points of the vote.

Time and source Data as of