In the run up to the 2019 Spanish local elections, various organisations carried out opinion polling to gauge voting intention in local entities in Spain. Results of such polls for municipalities and the three foral deputations (General Assemblies) in the Basque Country are displayed in this article. The date range for these opinion polls is from the previous local elections, held on 24 May 2015, to the day the next elections were held, on 26 May 2019.

Polls are listed 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" columns on the right shows the percentage-point difference between the parties with the highest percentages in a given poll.

Municipalities Barakaldo Polling firm/Commissioner Fieldwork date Sample size Turnout BD Lead 2019 municipal election 26 May 2019 62.5 38.6 27.0 11.5 5.7 – 1.1 13.2 1.5 11.6 Ikerfel/El Correo 30 Apr–14 May 2019 500? 31.6 23.8 12.1 8.1 – 0.7 18.1 2.0 7.8 2015 municipal election 24 May 2015 58.7 26.9 26.8 14.2 12.0 9.2 4.6 0.8 – – 0.1

Bilbao

Polling firm/Commissioner Fieldwork date Sample size Turnout UB Lead 2019 municipal election 26 May 2019 61.8 42.7 14.9 15.9 9.2 0.5 2.2 1.1 10.5 26.8 Gizaker/EiTB 24–26 May 2019 600? 44.2 18.3 12.3 7.4 3.5 2.3 – 9.0 26.5 Sigma Dos/El Mundo 17 May 2019?? 44.0 13.6 17.5 6.8 – 3.2 – 8.6 26.5 Gizaker/EiTB 9–14 May 2019 400 69.0 42.5 16.1 14.3 8.3 2.1 2.7 1.6 11.4 26.4 Ikerfel/Diario Vasco 30 Apr–14 May 2019?? 42.1 13.7 13.6 10.5 1.2 4.2 2.3 11.3 28.4 Ikertalde/GPS 29 Apr–10 May 2019 406 60.2 42.7 14.6 13.2 9.1 – 2.5 1.0 13.5 28.1 40dB/El País 30 Apr–2 May 2019 800? 44.0 14.6 14.3 9.4 – – 12.2 29.4 ElectoPanel/Electomanía 31 Mar–7 Apr 2019?? 41.8 15.6 14.0 8.5 1.7 1.6 12.6 26.2 ElectoPanel/Electomanía 24–31 Mar 2019?? 42.0 15.4 14.2 8.2 1.8 1.6 12.5 26.6 ElectoPanel/Electomanía 17–24 Mar 2019?? 41.9 15.4 14.6 8.4 1.7 1.7 12.1 26.5 ElectoPanel/Electomanía 10–17 Mar 2019?? 42.4 15.2 13.8 8.6 1.4 2.0 12.2 27.2 ElectoPanel/Electomanía 3–10 Mar 2019?? 42.3 15.3 13.6 8.4 1.7 2.0 12.4 27.0 ElectoPanel/Electomanía 22 Feb–3 Mar 2019?? 42.4 15.1 13.4 8.6 1.9 1.9 12.6 27.3 Gizaker/City Council of Bilbao 19–21 Feb 2019 1,000 60.1 44.8 15.3 11.7 7.9 7.3 5.7 – – – 29.5 Ikertalde/GPS 29 Jan–9 Feb 2019 406 61.5 42.4 13.7 11.8 11.0 3.6 0.7 13.4 28.7 Gizaker/EiTB 23 Nov–3 Dec 2018 400? 44.7 16.1 12.5 7.6 4.1 0.5 12.9 28.6 Ikertalde/GPS 25 Sep–6 Oct 2018 406 60.5 42.3 13.0 12.1 11.8 2.8 – 14.0 28.3 Gizaker/EiTB 14–21 May 2018 400? 42.7 15.6 11.5 9.9 9.6 4.3 3.5 – – 27.1 Gizaker/EiTB 16–20 May 2017 400? 43.8 13.4 12.7 10.1 6.4 7.7 2.9 – – 30.4 2015 municipal election 24 May 2015 59.3 39.3 14.0 12.0 11.9 8.5 6.5 3.5 0.4 – 25.3

Donostia-San Sebastián

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 municipal election 26 May 2019 65.3 35.5 17.5 21.2 10.8 1.6 1.3 9.9 14.3 Gizaker/EiTB 24–26 May 2019 600? 37.2 18.3 24.3 7.3 2.5 – 7.9 12.9 Gizaker/EiTB 9–14 May 2019 400 71.5 35.1 18.9 23.9 7.1 2.7 0.3 9.4 11.2 Ikerfel/Diario Vasco 30 Apr–14 May 2019 505? 33.6 19.1 20.5 8.3 3.0 1.8 11.2 13.1 Ikertalde/GPS 29 Apr–10 May 2019 406 66.5 33.3 19.5 20.4 9.0 2.8 1.0 11.0 12.9 Ikertalde/GPS 29 Jan–9 Feb 2019 406 67.0 34.0 19.6 19.4 8.3 10.2 3.5 0.2 – 14.4 Gizaker/EiTB 23 Nov–3 Dec 2018 400? 35.4 21.3 21.3 6.7 8.0 4.2 0.4 – 14.1 Ikertalde/GPS 25 Sep–6 Oct 2018 405 63.0 32.3 21.0 19.5 8.0 12.8 2.2 – – 11.3 Gizaker/EiTB 14–21 May 2018 400? 34.8 21.9 20.9 8.5 7.0 4.4 – – 12.9 Gizaker/EiTB 16–20 May 2017 400? 33.9 22.2 21.6 8.8 7.6 3.3 – – 11.7 2015 municipal election 24 May 2015 66.6 29.7 24.5 20.9 9.5 7.1 3.7 – – 5.2

Durango Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 municipal election 26 May 2019 68.2 35.3 32.3 16.3 10.0 4.5 3.0 City Council of Durango 2 May 2019 600? 37.9 32.5 13.2 8.9 5.3 5.4 City Council of Durango 31 Jan–5 Feb 2018 400??????? 2015 municipal election 24 May 2015 63.2 37.0 31.3 13.4 9.5 7.0 5.7

Eibar Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 municipal election 26 May 2019 67.5 39.2 24.0 25.9 3.5 6.6 13.3 Ikerfel/Diario Vasco 30 Apr–14 May 2019 504? 39.7 24.2 25.8 2.5 6.3 13.9 2015 municipal election 24 May 2015 62.3 41.9 24.0 21.2 6.8 4.1 – 17.9

Getxo Polling firm/Commissioner Fieldwork date Sample size Turnout GUK Lead 2019 municipal election 26 May 2019 67.5 39.1 16.5 2.1 15.1 10.6 3.2 1.6 8.0 22.6 Ikerfel/El Correo 30 Apr–14 May 2019 500? 33.1 17.7 15.2 12.3 5.2 4.3 7.9 7.8 2015 municipal election 24 May 2015 63.5 34.1 18.6 14.5 14.4 7.6 5.9 2.0 – 15.5

Irun Polling firm/Commissioner Fieldwork date Sample size Turnout SPI Lead 2019 municipal election 26 May 2019 60.8 35.7 24.9 13.8 5.5 2.3 15.4 10.8 Ikerfel/Diario Vasco 30 Apr–14 May 2019 501? 32.7 20.9 13.8 5.7 3.4 20.9 11.8 2015 municipal election 24 May 2015 60.5 33.4 18.3 18.2 12.4 7.8 4.0 3.7 – 15.1

Vitoria-Gasteiz

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 municipal election 26 May 2019 63.3 18.5 20.5 23.6 21.4 9.9 2.5 1.4 3.1 Gizaker/EiTB 24–26 May 2019 600? 18.3 23.9 24.4 14.1 11.6 3.1 – 0.5 Gizaker/EiTB 9–14 May 2019 400 70.0 19.0 23.5 23.1 14.3 12.9 3.5 0.7 0.4 Ikerfel/Diario Vasco 30 Apr–14 May 2019?? 19.5 23.7 21.7 15.1 12.8 3.0 2.1 2.0 Ikertalde/GPS 29 Apr–10 May 2019 406 65.0 19.0 22.2 22.4 14.7 13.7 3.2 1.0 0.2 Ikertalde/GPS 29 Jan–9 Feb 2019 406 65.5 21.1 19.7 21.2 12.3 14.5 4.1 1.7 0.1 Gizaker/EiTB 23 Nov–3 Dec 2018 400? 19.0 19.9 24.4 12.6 14.2 6.8 1.0 4.5 Ikertalde/GPS 25 Sep–6 Oct 2018 532 64.0 24.5 19.7 21.8 12.4 13.5 4.0 – 2.7 Aztiker/Gara 28 May–20 Jun 2018 514? 24.9 20.9 19.9 12.6 13.9 5.2 – 4.0 Gizaker/EiTB 14–21 May 2018 400? 24.9 19.7 22.6 10.1 8.3 5.5 5.1 – 2.7 Gizaker/EiTB 16–20 May 2017 400? 25.7 19.9 22.5 11.8 8.3 4.6 3.7 – 3.2 2015 municipal election 24 May 2015 64.8 29.8 19.5 16.6 11.9 8.7 5.1 3.2 0.3 10.3

General Assemblies Álava Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 foral election 26 May 2019 65.1 15.0 29.4 21.0 18.9 2.3 1.4 9.9 8.4 Gizaker/EiTB 9–14 May 2019 550 69.7 14.0 29.5 23.3 14.3 2.8 0.8 14.1 6.2 Ikerfel/El Correo 30 Apr–14 May 2019? 65.1 14.2 27.5 19.7 17.4 3.3 2.5 13.2 7.8 Ikertalde/GPS 29 Apr–10 May 2019 518 66.0 14.0 28.2 23.0 13.8 2.0 0.8 14.7 5.2 2019 general election 28 Apr 2019 71.2 13.7 22.7 14.0 22.4 4.0 3.2 17.7 0.3 Gizaker/EiTB 1–5 Mar 2019 450? 15.8 29.1 21.6 13.3 3.5 0.6 14.0 7.5 Ikertalde/GPS 29 Jan–9 Feb 2019 574 66.8 14.3 26.4 22.2 11.1 4.9 1.5 15.3 4.2 Gizaker/EiTB 23 Nov–3 Dec 2018 550? 14.9 28.5 21.1 12.3 4.8 0.4 15.0 7.4 Ikertalde/GPS 25 Sep–6 Oct 2018 742 64.5 19.2 25.9 21.9 11.9 3.1 – 13.8 4.0 Gizaker/EiTB 14–21 May 2018 550? 18.0 26.2 22.6 10.0 3.5 3.8 – 13.9 3.6 Gizaker/EiTB 16–20 May 2017 550? 19.2 25.1 20.2 12.0 3.5 3.9 – 13.2 4.9 2016 regional election 25 Sep 2016 59.7 18.5 28.0 17.8 12.9 3.2 0.5 16.1 9.5 2016 general election 26 Jun 2016 66.5 20.4 15.9 9.5 15.7 5.0 0.2 30.9 10.5 2015 general election 20 Dec 2015 71.1 18.8 15.8 11.8 27.0 14.1 3.8 5.9 – – 8.2 2015 foral election 24 May 2015 65.6 22.0 21.6 20.4 14.6 11.2 3.7 3.1 0.1 – 0.4

Biscay Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 foral election 26 May 2019 65.7 43.1 19.7 16.5 6.6 1.2 0.9 10.5 23.4 Gizaker/EiTB 9–14 May 2019 600 71.0 43.9 18.5 13.9 4.9 1.5 1.2 14.4 25.4 Ikerfel/El Correo 30 Apr–14 May 2019? 72.2 41.9 18.4 15.6 6.4 2.9 1.6 11.3 23.5 Ikertalde/GPS 29 Apr–10 May 2019 1,036 63.0 41.8 20.2 13.0 5.8 2.0 0.5 13.5 21.6 2019 general election 28 Apr 2019 75.8 34.4 13.4 19.9 7.2 3.1 2.3 17.7 14.5 Gizaker/EiTB 1–5 Mar 2019 650? 45.1 20.1 13.2 6.6 1.6 0.2 11.7 25.0 Ikertalde/GPS 29 Jan–9 Feb 2019 1,106 63.5 41.8 20.1 11.8 5.9 2.5 1.0 13.1 21.7 Gizaker/Biscay Deputation 10–15 Dec 2018 1,600 62.6 43.5 19.6 12.2 6.2 2.5 0.6 13.6 23.9 Gizaker/EiTB 23 Nov–3 Dec 2018 600? 44.0 19.3 12.8 5.8 2.5 0.2 14.2 24.7 Ikertalde/GPS 25 Sep–6 Oct 2018 1,315 61.5 41.5 19.6 12.0 7.8 2.3 – 13.4 21.9 Ikerfel/Biscay Deputation 28 May–23 Jun 2018 3,002 62.0 40.8 19.4 13.0 7.4 1.6 2.0 – 13.0 21.4 Gizaker/EiTB 14–21 May 2018 600? 43.3 19.7 11.5 6.3 2.0 2.0 – 12.2 23.6 Gizaker/Biscay Deputation 27 Nov–11 Dec 2017 2,000 61.5 42.7 19.7 12.6 7.4 – – – 11.5 23.0 Ikerfel/Biscay Deputation 15 May–8 Jun 2017 3,013 60.2 41.2 18.4 13.6 8.5 2.1 1.4 – 13.0 22.8 Gizaker/EiTB 16–20 May 2017 600? 42.4 18.5 12.9 7.3 2.9 1.9 – 12.9 23.9 2016 regional election 25 Sep 2016 60.5 41.8 17.5 11.7 9.7 1.9 – 14.8 24.3 2016 general election 26 Jun 2016 66.0 28.2 10.9 13.9 12.7 3.3 0.1 28.9 0.7 2015 general election 20 Dec 2015 69.4 27.9 12.5 26.1 12.5 11.4 2.8 3.8 – – 1.8 2015 foral election 24 May 2015 62.6 37.6 18.9 14.5 12.5 8.2 2.6 2.1 0.3 – 18.7

Gipuzkoa Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2019 foral election 26 May 2019 66.6 35.6 31.6 17.1 4.7 1.0 8.9 – 4.0 Gizaker/EiTB 9–14 May 2019 600 71.6 36.8 32.5 14.7 3.3 1.0 11.1 0.2 4.3 Ikerfel/El Correo 30 Apr–14 May 2019? 69.2 34.9 27.7 16.3 4.5 2.0 11.9 1.5 6.2 Ikertalde/GPS 29 Apr–10 May 2019 588 64.7 35.0 31.7 13.5 4.7 1.3 12.0 0.3 3.3 2019 general election 28 Apr 2019 74.0 29.1 23.4 18.8 5.0 2.9 17.3 1.6 5.7 Gizaker/Gipuzkoa Deputation 1–8 Apr 2019 1,500 64.3 35.0 31.3 15.2 4.4 1.2 11.9 0.3 3.7 Gizaker/EiTB 1–5 Mar 2019 550? 36.4 32.7 13.7 3.2 1.3 12.6 0.0 3.7 Ikertalde/GPS 29 Jan–9 Feb 2019 812 65.0 34.8 30.1 13.3 4.7 2.2 12.6 0.5 4.7 Gizaker/EiTB 23 Nov–3 Dec 2018 600? 37.8 31.5 12.7 4.0 2.6 11.2 0.1 6.3 Gizaker/Gipuzkoa Deputation 15–21 Nov 2018 1,500 63.5 35.6 30.9 15.0 4.1 2.1 11.7 – 4.7 Ikertalde/GPS 25 Sep–6 Oct 2018 1,092 62.0 35.0 29.3 14.2 5.5 1.5 12.4 – 5.7 Gizaker/Gipuzkoa Deputation 11–15 Jun 2018 1,500 64.9 35.4 30.9 15.4 4.3 – – 10.3 – 4.5 Gizaker/EiTB 14–21 May 2018 600? 38.8 30.7 14.0 3.5 1.5 1.2 10.2 – 8.1 Gizaker/Gipuzkoa Deputation 11–18 Oct 2017 1,500 63.1 34.1 31.0 15.2 5.0 – – 11.2 – 3.1 Gizaker/EiTB 16–20 May 2017 600? 36.0 29.0 15.6 4.7 2.2 0.9 11.3 – 7.0 Gizaker/Gipuzkoa Deputation 10–13 May 2017 1,500 62.3 36.4 29.8 15.2 4.6 – – 10.8 – 6.6 2016 regional election 25 Sep 2016 59.4 34.1 28.7 11.8 7.2 1.7 14.2 – 5.4 2016 general election 26 Jun 2016 63.3 23.3 19.1 14.1 9.7 3.2 28.6 – 5.3 2015 general election 20 Dec 2015 67.4 23.5 20.9 13.3 25.3 8.7 2.8 3.8 – – 1.8 2015 foral election 24 May 2015 64.9 31.6 28.8 16.5 12.1 5.4 2.4 1.5 – – 2.8

Notes

References