A regional election will be held in the Basque Country no later than 21 May 2028 to elect the 14th Parliament of the autonomous community. All 75 seats in the Parliament will be up for election.

Overview Under the 1979 Statute of Autonomy, the Basque Parliament is the unicameral legislature of the Basque Autonomous Community, having legislative power in devolved matters, as well as the ability to grant or withdraw confidence from a lehendakari.. The electoral and procedural rules are supplemented by national law provisions..

Date The term of the Basque Parliament expires four years after the date of its previous election, unless it is dissolved earlier. The election decree shall be issued no later than 25 days before the scheduled expiration date of parliament and published on the following day in the Official Gazette of the Basque Country (BOPV), with election day taking place 54 days after the decree's publication.; . The previous election was held on 21 April 2024, which means that the chamber's term will expire on 21 April 2028. The election decree shall be published in the BOPV no later than 28 March 2028, setting the latest possible date for election day on 21 May 2028.

The lehendakari has the prerogative to dissolve the Basque Parliament at any given time and call a snap election, provided that no motion of no confidence is in process.. In the event of an investiture process failing to elect a lehendakari within a 60-day period from the Parliament's reconvening, the chamber is to be automatically dissolved and a fresh election called..

Electoral system Voting for the Parliament is based on universal suffrage, comprising all Spanish nationals over 18 years of age, registered in the Basque Country and with full political rights, provided that they have not been deprived of the right to vote by a final sentence.; ( by ).

The Basque Parliament has 75 seats. All are elected in three multi-member constituencies—corresponding to the provinces of Álava, Biscay and Gipuzkoa, each of which is assigned a fixed number of 25 seats to provide for an equal parliamentary representation of the three provinces—using the D'Hondt method and closed-list proportional voting, with a three percent-threshold of valid votes (including blank ballots) in each constituency.; . The use of this electoral method may result in a higher effective threshold depending on district magnitude and vote distribution.

The law does not provide for by-elections to fill vacant seats; instead, any vacancies arising after the proclamation of candidates and during the legislative term will be filled by the next candidates on the party lists or, when required, by designated substitutes. ( by ).

Current parliament The table below shows the composition of the parliamentary groups in the chamber at the present time.

+ Current parliamentary composition Groups Parties Legislators Seats Total Basque Nationalists Parliamentary Group EAJ/PNV 27 27 EH Bildu Parliamentary Group EH Bildu 27 27 Basque Socialists Parliamentary Group PSE–EE (PSOE) 12 12 Basque People's Parliamentary Group PP 7 7 Mixed Group EzAn–IU 1 2 Vox 1

Parties and candidates The electoral law allows for parties and federations registered in the interior ministry, alliances and groupings of electors to present lists of candidates. Parties and federations intending to form an alliance are required to inform the relevant electoral commission within 10 days of the election call, 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, disallowing electors from signing for more than one list. ( by ). Amendments in 2024 required a balanced composition of men and women in the electoral lists through the use of a zipper system..

Below is a list of the main parties and alliances which will likely contest the election:

Candidacy Parties andalliances Leading candidate Ideology Previous result Vote % Seats EAJ/PNV Imanol Pradales Basque nationalismChristian democracySocial democracy 34.8% EH Bildu Pello Otxandiano Basque independenceAbertzale leftSocialism 32.1% PSE–EE(PSOE) Eneko Andueza Social democracy 14.1% PP Javier de Andrés ConservatismChristian democracy 9.2% Sumar Alba García ProgressivismLeft-wing populismGreen politics 3.3% Vox Amaia Martínez Right-wing populismUltranationalismNational conservatism 2.0%

Opinion polls The tables below list opinion polling results in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest percentage figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the figures with the highest percentages. The "Lead" column on the right shows the percentage-point difference between the parties with the highest percentages in a poll.

Voting intention estimates The table below lists weighted voting intention estimates. Refusals are generally excluded from the party vote percentages, while question wording and the treatment of "don't know" responses and those not intending to vote may vary between polling organisations. When available, seat projections determined by the polling organisations are displayed below (or in place of) the percentages in a smaller font; 38 seats are required for an absolute majority in the Basque Parliament.

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead Sigma Dos/El Mundo 7–16 Apr 2026 1,411? 34.7 32.1 14.0 8.5 3.4 – 2.7 2.6 Ikerfel/GPS 23–26 Mar 2026 3,030 59.8 35.3 32.2 14.3 8.7 2.3 2.0 2.9 3.1 Aztiker/EH Bildu 24 Dec 2025 2,990????? – –?? Ikerfel/GPS 11–14 Nov 2025 3,030 60.2 36.2 31.7 13.6 8.4 3.0 1.9 3.2 4.5 Ikerfel/GPS 17–20 Jun 2025 3,030 59.3 36.1 31.3 13.9 8.9 2.5 2.0 3.1 4.8 NC Report/La Razón 16–31 May 2025 350????? –??? Sigma Dos/El Mundo Feb 2025?? 34.5 32.5 14.1 9.0 – – – 2.0 Ikerfel/GPS 28–31 Jan 2025 3,030 58.2 35.3 32.0 14.0 9.2 2.5 2.5 2.0 3.3 EM-Analytics/Electomanía 29 Dec–28 Jan 2025 1,450? 34.5 31.9 12.9 9.1 2.9 3.5 1.6 2.6 Ikerfel/GPS 5–8 Nov 2024 3,030 60.2 35.2 32.0 14.6 9.1 2.6 2.2 2.0 3.2 EM-Analytics/Electomanía 29 Sep–27 Oct 2024 1,450? 34.0 31.8 12.4 9.5 3.4 4.5 1.7 2.2 2024 EP election 9 Jun 2024 48.8 22.4 26.3 26.0 11.6 3.3 3.2 2.7 0.3 2024 regional election 21 Apr 2024 60.0 34.8 32.1 14.1 9.2 3.3 2.2 2.0 2.7

Voting preferences The table below lists raw, unweighted voting preferences.

Polling firm/Commissioner Fieldwork date Sample size PNV Lead Ikerfel/GPS 23–26 Mar 2026 3,030 20.9 18.3 6.7 2.2 0.6 1.3 1.7 32.8 11.8 2.6 Ikerfel/GPS 11–14 Nov 2025 3,030 24.0 18.9 6.5 2.2 1.3 1.5 2.0 30.4 10.7 5.1 Ikerfel/GPS 17–20 Jun 2025 3,030 23.2 18.2 7.1 2.5 0.8 1.3 1.9 29.6 12.4 5.0 CIS 7–31 Mar 2025 1,023 27.2 18.8 12.8 3.9 1.4 1.8 2.7 20.3 7.4 8.4 Ikerfel/GPS 28–31 Jan 2025 3,030 22.1 19.6 6.9 2.3 0.9 1.4 0.7 28.1 14.1 2.5 Ikerfel/GPS 5–8 Nov 2024 3,030 22.9 20.1 7.7 1.8 1.0 1.6 0.8 29.4 11.6 2.8 2024 EP election 9 Jun 2024 13.1 13.3 11.4 5.8 1.7 1.6 1.4 49.1 0.2 2024 regional election 21 Apr 2024 21.6 20.0 8.7 5.7 2.0 1.4 1.2 37.5 1.6

Preferred Lehendakari The table below lists opinion polling on leader preferences to become lehendakari.

Polling firm/Commissioner Fieldwork date Sample size Other/None/Notcare Lead Ikerfel/GPS 20–26 May 2026 3,485 25.0 11.0 5.0 3.0 1.0 5.0 15.0 35.0 14.0 CIS 7–31 Mar 2025 1,023 25.0 11.4 7.3 2.1 – – 7.3 47.0 13.6

Notes

References Opinion poll sources

Other

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