Gipuzkoa () is one of the three constituencies () represented in the Basque Parliament, the regional legislature of the Basque Autonomous Community. The constituency currently elects 25 deputies. Its boundaries correspond to those of the Spanish province of Gipuzkoa. The electoral system uses the D'Hondt method and closed-list proportional representation, with a minimum threshold of three percent.

Electoral system The constituency was created as per the Statute of Autonomy for the Basque Country of 1979 and was first contested in the 1980 regional election. The Statute provided for the three provinces in the Basque Country—Álava, Biscay and Gipuzkoa—to be established as multi-member districts in the Basque Parliament, with this regulation being maintained under the 1983 and 1990 regional electoral laws. Each constituency is allocated a fixed number of 25 seats each, to provide for an equal representation of the three provinces in Parliament as required under the regional Statute. The exception was the 1980 election, when this number was 60.

Voting is on the basis of universal suffrage, which comprises all nationals over eighteen, registered in the Basque Country and in full enjoyment of their political rights. Amendments to the electoral law in 2011 required for Basques abroad to apply for voting before being permitted to vote, a system known as "begged" or expat vote () which was abolished in 2022. Seats are elected using the D'Hondt method and a closed list proportional representation, with an electoral threshold of three percent of valid votes—which, until 1983 and from 1990 includes blank ballots; also and until a 2000 reform, the threshold was set at five percent—being applied in each constituency. The use of the D'Hondt method may result in a higher effective threshold, depending on the district magnitude.

The electoral law allows for parties and federations registered in the interior ministry, coalitions and groupings of electors to present lists of candidates. Parties and federations intending to form a coalition ahead of an election are required to inform the relevant Electoral Commission within ten days of the election call—fifteen before 1985—whereas groupings of electors need to secure the signature of at least one percent of the electorate in the constituencies for which they seek election—one-thousandth of the electorate, with a compulsory minimum of 500 signatures, until 1983; and only the signature of 500 electors from 1983 to 1990—disallowing electors from signing for more than one list of candidates.

Deputies Deputies 1980–present Parliament Election Distribution 1st 1980 4 3 3 9 1 2nd 1984 5 2 6 11 1 3rd 1986 6 3 6 6 4 4th 1990 6 2 5 5 6 1 5th 1994 6 2 4 4 6 3 6th 1998 7 4 4 6 4 7th 2001 4 1 4 12 4 8th 2005 5 1 1 5 10 3 9th 2009 1 2 8 1 10 3 10th 2012 9 5 9 2 11th 2016 8 3 3 9 2 12th 2020 9 2 3 10 1 13th 2024 11 4 9 1

Regional elections 2024 + Summary of the 21 April 2024 Basque Parliament election results in Gipuzkoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Country Gather (EH Bildu) 137,308 39.82 +4.90 11 +2 Basque Nationalist Party (EAJ/PNV) 108,227 31.38 –4.70 9 –1 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 46,266 13.42 +0.64 4 +1 People's Party (PP)1 22,071 6.40 +1.76 1 ±0 Unite (Sumar)2 10,617 3.08 n/a 0 –1 United We Can–Green Alliance (Podemos/Ahal Dugu–AV)2 7,469 2.17 n/a 0 –1 Vox (Vox) 5,218 1.51 +0.19 0 ±0 Animalist Party with the Environment (PACMA)3 1,784 0.52 +0.07 0 ±0 Blank Seats to Leave Empty Seats (EB/AZ) 1,161 0.34 +0.04 0 ±0 To Be (Izan) 639 0.19 New 0 ±0 For a Fairer World (PUM+J) 462 0.13 +0.06 0 ±0 Blank ballots 3,626 1.05 +0.10 Total 344,848 25 ±0 Valid votes 344,848 99.46 –0.04 Invalid votes 1,864 0.54 +0.04 Votes cast / turnout 346,712 58.99 +6.81 Abstentions 241,000 41.01 –6.81 Registered voters 587,712 Sources

2020 + Summary of the 12 July 2020 Basque Parliament election results in Gipuzkoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Nationalist Party (EAJ/PNV) 109,554 36.08 +1.99 10 +1 Basque Country Gather (EH Bildu) 106,027 34.92 +6.24 9 +1 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 38,795 12.78 +1.03 3 ±0 United We Can–United Left (Podemos/Ahal Dugu, Ezker Anitza–IU) 21,568 7.10 –7.09 2 –1 People's Party+Citizens (PP+Cs)1 14,086 4.64 –4.23 1 –1 Vox (Vox) 4,020 1.32 New 0 ±0 Equo Greens–Basque Country Greens (Equo Berdeak–Verdes) 3,439 1.13 New 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA/ATTKAA) 1,357 0.45 –0.29 0 ±0 Blank Seats (EB/AZ) 911 0.30 New 0 ±0 Zero Cuts–The Greens–Municipalists (Recortes Cero–LV–M) 362 0.12 –0.11 0 ±0 For a Fairer World (PUM+J) 208 0.07 New 0 ±0 Libertarian Party (P–LIB) 176 0.06 New 0 ±0 Free for the Basque Country (LxE/EaL) 171 0.06 New 0 ±0 Spanish Christian Democratic Union (UCDE) 121 0.04 New 0 ±0 Blank ballots 2,874 0.95 +0.33 Total 303,669 25 ±0 Valid votes 303,669 99.50 –0.19 Invalid votes 1,531 0.50 +0.19 Votes cast / turnout 305,200 52.18 –7.20 Abstentions 279,706 47.82 +7.20 Registered voters 584,906 Sources

2016 + Summary of the 25 September 2016 Basque Parliament election results in Gipuzkoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Nationalist Party (EAJ/PNV) 117,260 34.09 +2.51 9 ±0 Basque Country Gather (EH Bildu) 98,663 28.68 –3.08 8 –1 United We Can (Podemos, Ezker Anitza–IU, Equo)1 48,800 14.19 +10.79 3 +3 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 40,425 11.75 –7.27 3 –2 People's Party (PP) 24,766 7.20 –1.21 2 ±0 Citizens–Party of the Citizenry (C's) 5,730 1.67 New 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA/ATTKAA) 2,535 0.74 +0.37 0 ±0 Let's Win the Basque Country: Yes We Can (Ganemos Irabazi) 1,856 0.54 New 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 806 0.23 New 0 ±0 Family and Life Party (PFyV) 805 0.23 New 0 ±0 Navarrese Freedom (Ln) 191 0.06 New 0 ±0 Blank ballots 2,119 0.62 –0.68 Total 343,956 25 ±0 Valid votes 343,956 99.69 +0.27 Invalid votes 1,064 0.31 –0.27 Votes cast / turnout 345,020 59.38 –3.90 Abstentions 236,002 40.62 +3.90 Registered voters 581,022 Sources

2012 + Summary of the 21 October 2012 Basque Parliament election results in Gipuzkoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Country Gather (EH Bildu)1 115,086 31.76 +16.41 9 +6 Basque Nationalist Party (EAJ/PNV) 114,446 31.58 –4.91 9 –1 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 68,915 19.02 –11.16 5 –3 People's Party (PP) 30,461 8.41 –2.05 2 –1 United Left–The Greens: Plural Left (IU–LV) 9,630 2.66 New 0 ±0 Union, Progress and Democracy (UPyD) 5,231 1.44 –0.29 0 ±0 United Left–Greens (EB–B) 5,040 1.39 –2.27 0 –1 Blank Seats (EB/AZ) 3,573 0.99 New 0 ±0 Equo Greens–Basque Ecologists (Equo)2 2,682 0.74 +0.18 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA/ATTKAA) 1,345 0.37 New 0 ±0 For a Fairer World (PUM+J) 679 0.19 –0.15 0 ±0 Humanist Party (PH) 335 0.09 New 0 ±0 Communist Unification of Spain (UCE) 223 0.06 New 0 ±0 Blank ballots 4,721 1.30 +0.07 Total 362,367 25 ±0 Valid votes 362,367 99.42 +12.91 Invalid votes 2,099 0.58 –12.91 Votes cast / turnout 364,466 63.28 +1.52 Abstentions 211,469 36.72 –1.52 Registered voters 575,935 Sources

2009 + Summary of the 1 March 2009 Basque Parliament election results in Guipúzcoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Nationalist Party (EAJ/PNV)1 112,101 36.49 n/a 10 +4 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 92,714 30.18 +10.04 8 +3 People's Party (PP) 32,123 10.46 –2.76 3 ±0 Aralar (Aralar) 31,262 10.18 +6.25 2 +1 Basque Solidarity (EA)1 15,885 5.17 n/a 1 –3 United Left–Greens (EB–B) 11,240 3.66 –1.55 1 ±0 Union, Progress and Democracy (UPyD) 5,327 1.73 New 0 ±0 The Greens (B/LV) 1,708 0.56 New 0 ±0 For a Fairer World (PUM+J) 1,048 0.34 New 0 ±0 Communist Party of the Basque Homelands (PCTV/EHAK) n/a n/a –18.09 0 –5 Blank ballots 3,793 1.23 +0.50 Total 307,201 25 ±0 Valid votes 307,201 86.51 –13.19 Invalid votes 47,908 13.49 +13.19 Votes cast / turnout 355,109 61.76 –5.86 Abstentions 219,875 36.72 +5.86 Registered voters 574,984 Sources

2005 + Summary of the 17 April 2005 Basque Parliament election results in Guipúzcoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Nationalist Party–Basque Solidarity (PNV–EA) 148,884 38.02 –6.31 10 –2 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 78,871 20.14 +4.01 5 +1 Communist Party of the Basque Homelands (PCTV/EHAK)1 70,834 18.09 +2.97 5 +1 People's Party (PP) 51,780 13.22 –4.82 3 –1 United Left–Greens (EB–B)2 20,388 5.21 +0.04 1 ±0 Aralar (Aralar) 15,396 3.93 New 1 +1 Greens–Anti-Bullfighting Party Against Mistreatment of Animals (B–PACMA) 1,333 0.34 New 0 ±0 Internationalist Socialist Workers' Party (POSI) 621 0.16 New 0 ±0 Humanist Party (PH) 500 0.13 –0.14 0 ±0 Alavese Unity (UA) 136 0.03 New 0 ±0 Blank ballots 2,851 0.73 –0.07 Total 391,594 25 ±0 Valid votes 391,594 99.70 +0.13 Invalid votes 1,182 0.30 –0.13 Votes cast / turnout 392,776 67.62 –11.06 Abstentions 188,124 32.38 +11.06 Registered voters 580,900 Sources

2001 + Summary of the 13 May 2001 Basque Parliament election results in Guipúzcoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Nationalist Party–Basque Solidarity (PNV–EA)1 203,445 44.33 +8.69 12 +2 People's Party (PP)2 82,792 18.04 +1.49 4 ±0 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 74,042 16.13 +0.09 4 ±0 Basque Citizens (EH) 69,409 15.12 –10.09 4 –3 United Left (IU/EB) 23,731 5.17 +0.58 1 +1 Humanist Party (PH) 1,252 0.27 +0.02 0 ±0 Carlist Party (EKA/PC) 310 0.07 New 0 ±0 Freedom (Askatasuna) 269 0.06 New 0 ±0 Blank ballots 3,669 0.80 –0.61 Total 458,919 25 ±0 Valid votes 458,919 99.57 +0.03 Invalid votes 1,969 0.43 –0.03 Votes cast / turnout 460,888 78.68 +8.63 Abstentions 124,862 21.32 –8.63 Registered voters 585,750 Sources

1998 + Summary of the 25 October 1998 Basque Parliament election results in Guipúzcoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Basque Citizens (EH)1 103,057 25.21 +2.08 7 +1 Basque Nationalist Party (EAJ/PNV) 88,857 21.74 –0.56 6 ±0 People's Party (PP) 67,112 16.42 +4.54 4 +1 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE)) 65,548 16.04 –0.34 4 ±0 Basque Solidarity (EA) 56,821 13.90 –2.82 4 ±0 United Left (IU/EB) 18,744 4.59 –2.49 0 –2 Natural Law Party (PLN/LNA) 1,339 0.33 New 0 ±0 Humanist Party (PH) 1,009 0.25 New 0 ±0 Alavese Unity (UA) 520 0.13 –0.13 0 ±0 Blank ballots 5,770 1.41 –0.74 Total 408,777 25 ±0 Valid votes 408,777 99.54 +0.09 Invalid votes 1,870 0.46 –0.09 Votes cast / turnout 410,647 70.05 +11.92 Abstentions 175,539 29.95 –11.92 Registered voters 586,186 Sources

1994 + Summary of the 23 October 1994 Basque Parliament election results in Guipúzcoa Parties and alliances Popular vote Seats Votes % ±pp Total +/− Popular Unity (HB) 75,294 23.13 –0.45 6 ±0 Basque Nationalist Party (EAJ/PNV) 72,602 22.30 +1.93 6 ±0 Basque Solidarity (EA) 54,426 16.72 –1.27 4 –1 Socialist Party of the Basque Country–Basque Country Left (PSE–EE (PSOE))1 53,320 16.38 –11.45 4 –3 People's Party (PP) 38,677 11.88 +5.46 3 +2 United Left (IU/EB) 23,042 7.08 +6.07 2 +2 Alavese Unity (UA) 839 0.26 +0.22 0 ±0 Coalition for a New Socialist Party (NPS)2 375 0.12 +0.08 0 ±0 Blank ballots 7,001 2.15 +1.29 Total 325,576 25 ±0 Valid votes 325,576 99.45 –0.14 Invalid votes 1,790 0.55 +0.14 Votes cast / turnout 327,366 58.13 –3.94 Abstentions 235,841 41.87 +3.94 Registered voters 563,207 Sources

1990