Opinion polling for the 2023 Spanish local elections (Basque Country)

For opinion polls in other autonomous communities, see Opinion polling for the 2023 Spanish local elections.

In the run up to the 2023 Spanish local elections, various organisations carry 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 26 May 2019, to the day the next elections were held, on 28 May 2023.

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	PNV							Lead
2023 municipal election	28 May 2023	—	56.0	36.0 11	24.5 7	8.7 2	15.9 5	7.2 2	–	2.9 0	11.5
Gizaker/EiTB[1][2]	26 Apr–12 May 2023	400	61.0	42.1 12	24.9 7	10.8 3	13.6 4	5.2 1	–	–	17.2
Gizaker/EiTB[3][4]	27 Feb–17 Mar 2023	400	59.0	40.8 12	26.2 8	9.7 2	13.2 4	5.4 1	–	2.7 0	14.6
Gizaker/Inguralde[5]	12–16 Dec 2022	700	61.0	39.0 11/12	26.2 8	13.1 3/4	12.6 3	6.2 1	1.1 0	0.9 0	12.8
2019 municipal election	26 May 2019	—	62.5	38.6 11	27.0 8	13.2 4	11.5 3	5.7 1	1.5 0	1.1 0	11.6

Basauri

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV						Lead
2023 municipal election	28 May 2023	—	55.7	39.3 9	22.6 5	19.6 4	8.1 2	7.5 1	–	16.7
Gizaker/EiTB[1][6]	26 Apr–12 May 2023	400	62.0	45.0 10/11	21.8 5	16.4 3/4	8.5 1/2	5.0 1	–	23.2
Gizaker/EiTB[3][7]	27 Feb–17 Mar 2023	400	63.0	45.7 10/11	21.5 5	15.1 3	9.3 2	5.0 0/1	–	24.2
2019 municipal election	26 May 2019	—	62.9	43.1 10	22.7 5	13.3 3	10.7 2	5.4 1	0.8 0	20.4

Bilbao

Color key:

  Poll conducted after legal ban on opinion polls

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV								Lead
2023 municipal election	28 May 2023	—	56.2	36.6 12	16.4 5	18.9 6	8.0 2	12.1 4	0.2 0	3.4 0	–	17.7
Sigma Dos/EiTB[8]	25–28 May 2023	700	?	42.4 13/14	16.3 5	17.5 5	9.7 2/3	10.2 3	–	–	–	24.9
NC Report/La Razón[9]	22 May 2023	?	?	42.9 14	14.9 5	16.2 5	7.9 2	10.9 3	–	–	–	26.7
Gizaker/EiTB[1][10]	26 Apr–12 May 2023	400	60.0	45.2 14	15.5 5	17.3 5	7.1 2	9.4 3	–	2.5 0	–	27.9
Ikerfel/El Correo[11]	25 Apr–12 May 2023	?	?	43.9 14	15.8 5	16.8 5	10.3 3	8.6 2	–	1.8 0	–	27.1
Ikerfel/GPS[12]	2–5 May 2023	?	59.5	44.3 14	15.5 5	16.0 5	8.0 2	8.9 3	–	2.9 0	–	28.3
CIS[13][14]	10–26 Apr 2023	601	?	36.4 11/13	17.0 5/6	19.7 5/7	9.9 2/3	9.2 2/3	0.7 0	4.1 0/1	–	16.7
NC Report/La Razón[15]	24 Apr 2023	?	62.8	41.1 13	15.6 5	15.5 5	9.5 3	11.3 3	–	–	–	25.5
ElectoPanel/Crónica Vasca[16]	19 Sep–4 Apr 2023	1,501	?	43.8 14	15.3 4	15.8 5	9.9 3	10.3 3	1.2 0	2.1 0	-	28.0
Gizaker/EiTB[3][17]	27 Feb–17 Mar 2023	400	60.0	44.0 14	14.7 5	17.1 5	9.9 3	7.9 2	–	3.2 0	–	26.9
Sigma Dos/El Mundo[18][19]	3–8 Mar 2023	629	?	41.6 13/14	16.9 5	15.5 5	9.7 3	9.2 2/3	–	–	–	24.7
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	?	58.5	45.7 15	15.9 5	14.7 5	7.9 2	8.8 2	–	2.2 0	–	29.8
Ikerfel/GPS[21]	3–7 Oct 2022	?	59.0	44.3 15	15.2 5	16.4 5	8.5 2	8.7 2	–	2.0 0	–	27.9
ElectoPanel/Crónica Vasca[22]	10 May–18 Sep 2022	1,008	?	40.2 13	15.7 5	15.5 5	11.0 3	[a]	[a]	2.0 0	12.1 3	24.5
Ikerfel/GPS[23]	6–10 Jun 2022	443	58.5	44.7 14	15.9 5	15.4 5	8.8 2	9.0 3	–	2.7 0	–	28.8
ElectoPanel/Crónica Vasca[24]	2–19 May 2022	757	?	40.8 13	15.7 5	15.2 5	10.7 3	[a]	[a]	1.9 0	12.3 3	25.1
Gizaker/EiTB[25]	5–12 May 2022	400	?	46.7 15	15.0 5	14.9 4	9.5 3	8.0 2	0.5 0	3.0 0	–	31.7
Gizaker/City Council of Bilbao[26][27]	19–26 May 2021	1,000	61.0	43.0 14	15.7 5	17.1 5	8.8 2	9.5 3	–	2.7 0	–	25.9
2019 municipal election	26 May 2019	—	61.8	42.7 14	15.9 5	14.9 4	10.5 3	9.2 3	2.2 0	1.1 0	–	26.8

Donostia-San Sebastián

Color key:

  Poll conducted after legal ban on opinion polls

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV							Lead
2023 municipal election	28 May 2023	—	59.9	27.9 9	26.7 8	18.6 5	12.1 3	8.1 2	0.2 0	2.4 0	1.2
Sigma Dos/EiTB[8]	25–28 May 2023	700	?	33.0 9/10	27.5 8/9	16.8 5	8.8 2	9.8 2/3	–	–	5.5
Gizaker/EiTB[1][28]	26 Apr–12 May 2023	400	63.0	32.9 10	25.2 7	17.7 5	10.4 3	9.2 2	–	1.5 0	7.7
Ikerfel/Diario Vasco[29]	25 Apr–12 May 2023	400	60.3	32.3 9/10	26.4 7/8	18.1 5	10.6 3	9.6 2/3	–	1.7 0	5.9
Ikerfel/GPS[12]	2–5 May 2023	?	61.0	33.9 10	25.2 7	16.5 5	9.5 3	8.4 2	–	2.5 0	8.7
Gizaker/EiTB[3][30]	27 Feb–17 Mar 2023	400	64.0	36.3 11	24.1 7	17.4 5	9.1 2	9.7 2	–	0.8 0	12.2
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	?	60.5	34.3 10	24.3 7	17.6 5	9.7 3	8.1 2	–	2.2 0	10.0
Ikerfel/GPS[21]	3–7 Oct 2022	?	59.5	33.8 10	21.7 6	21.5 6	9.4 3	7.9 2	–	2.2 0	12.1
Ikerfel/GPS[23]	6–10 Jun 2022	400	59.0	37.1 11	22.7 7	17.2 5	9.2 2	7.9 2	–	2.1 0	14.4
Gizaker/EiTB[31]	5–12 May 2022	400	?	37.3 11	24.7 7	16.5 5	8.6 2	8.0 2	1.0 0	1.8 0	12.6
ElectoPanel/Electomanía[32]	1 Apr–15 Jun 2020	?	?	30.4 9	24.9 7	20.1 6	12.1 3	7.5 2	–	–	5.5
2019 municipal election	26 May 2019	—	65.3	35.5 10	21.2 6	17.5 5	10.8 3	9.9 3	1.6 0	1.3 0	14.3

Durango

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV					HE	Lead
2023 municipal election	28 May 2023	—	64.1	35.4 8	37.8 9	4.5 0	8.2 2	6.1 1	6.6 1	2.4
Aztiker/City Council of Durango[33]	16–27 Jan 2023	614	64.6	36.7 8/9	33.0 7/8	12.1 2/3	9.4 2	5.0 0/1	–	3.7
2019 municipal election	26 May 2019	—	68.2	35.3 8	32.3 7	16.3 4	10.0 2	4.5 0	–	3.0

Eibar

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout		PNV				Lead
2023 municipal election	28 May 2023	—	60.3	36.4 8	25.7 6	26.8 6	5.4 1	3.9 0	9.6
Gizaker/EiTB[1][34]	26 Apr–12 May 2023	400	63.0	35.9 8	28.6 6/7	27.3 6/7	4.1 0	3.5 0	7.3
Gizaker/EiTB[3][35]	27 Feb–17 Mar 2023	400	65.0	35.3 8	28.7 6/7	24.9 5/6	6.2 1	4.0 0	6.6
2019 municipal election	26 May 2019	—	67.5	39.2 9	25.9 6	24.0 5	6.6 1	3.5 0	13.3

Getxo

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV							Lead
2023 municipal election	28 May 2023	—	62.3	31.7 9	21.7 6	20.2 6	10.3 3	5.6 1	–	3.4 0	10.0
Gizaker/EiTB[1][36]	26 Apr–12 May 2023	400	62.0	40.2 11/12	15.8 4	20.1 5/6	9.2 2	7.4 2	–	2.7 0	20.1
Gizaker/EiTB[3][37]	27 Feb–17 Mar 2023	400	65.0	38.6 11	14.1 4	18.2 5	10.9 3	7.7 2	–	4.2 0	20.4
2019 municipal election	26 May 2019	—	67.5	39.1 11	16.4 5	15.1 4	10.6 3	8.0 2	3.2 0	1.6 0	22.7

Irun

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout		PNV						Lead
2023 municipal election	28 May 2023	—	54.1	32.7 10	23.0 7	9.2 2	16.1 4	8.5 2	–	4.1 0	9.7
Gizaker/EiTB[1][38]	26 Apr–12 May 2023	400	61.0	32.7 8/9	26.6 7/8	13.3 3/4	19.3 5	6.3 1	–	–	6.1
Ikerfel/Diario Vasco[39]	25 Apr–12 May 2023	400	59.0	32.4 9	26.1 7	14.7 4	16.1 4	6.3 1	–	2.6 0	6.3
Gizaker/EiTB[3][40]	27 Feb–17 Mar 2023	400	60.0	31.9 8/9	28.3 7/8	12.0 3	18.6 5	6.7 1	–	1.7 0	3.6
2019 municipal election	26 May 2019	—	60.8	35.7 10	24.8 7	15.4 4	13.8 3	5.5 1	2.3 0	1.6 0	10.9

Llodio

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV		Omnia					Lead
2023 municipal election	28 May 2023	—	63.5	33.8 6	34.1 7	15.1 3	9.6 1	–	4.2 0	1.6 0	0.3
Gizaker/EiTB[1][41]	26 Apr–12 May 2023	400	64.0	33.9 7	31.3 6	16.5 3	9.3 1	4.7 0	3.4 0	–	2.6
Gizaker/EiTB[3][42]	27 Feb–17 Mar 2023	400	66.0	33.2 6/7	27.8 5/6	18.4 3	10.1 2	3.9 0	4.5 0	–	5.4
2019 municipal election	26 May 2019	—	67.8	36.2 7	24.7 5	18.2 3	10.4 2	4.7 0	4.4 0	0.7 0	11.5

Salvatierra-Agurain

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV						Lead
2023 municipal election	28 May 2023	—	66.2	46.2 6	48.6 7	3.1 0	0.9 0	–	–	2.4
Gizaker/EiTB[1][43]	26 Apr–12 May 2023	200	68.0	42.9 6	46.7 7	5.2 0	3.0 0	–	–	3.8
Gizaker/EiTB[3][44]	27 Feb–17 Mar 2023	200	69.0	45.5 6/7	45.8 6/7	3.6 0	2.6 0	1.1 0	1.4 0	0.3
2019 municipal election	26 May 2019	—	67.5	45.6 7	44.9 6	4.4 0	3.2 0	1.0 0	–	0.7

Tolosa

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV					Lead
2023 municipal election	28 May 2023	—	63.3	36.6 7	49.2 9	7.5 1	3.1 0	1.9 0	12.6
Gizaker/EiTB[1][45]	26 Apr–12 May 2023	400	64.0	39.5 7	48.6 9	6.1 1	3.9 0	1.2 0	9.1
Gizaker/EiTB[3][46]	27 Feb–17 Mar 2023	400	70.0	41.3 8	42.7 8	8.2 1	4.7 0	1.8 0	1.4
2019 municipal election	26 May 2019	—	68.8	43.4 8	41.3 8	7.2 1	5.2 0	2.1 0	2.1

Vitoria-Gasteiz

Color key:

  Poll conducted after legal ban on opinion polls

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV							Lead
2023 municipal election	28 May 2023	—	58.1	19.7 6	21.9 6	22.8 7	20.1 6	7.1 2	0.2 0	3.8 0	0.9
Sigma Dos/EiTB[8]	25–28 May 2023	700	?	23.7 7	22.2 6/7	24.4 7	19.4 5/6	6.7 1/2	–	–	0.7
Gizaker/EiTB[1][47]	26 Apr–12 May 2023	400	61.0	25.2 7/8	19.4 5/6	23.9 7	19.1 5/6	7.8 2	–	2.1 0	1.3
Ikerfel/El Correo[48]	25 Apr–12 May 2023	?	?	22.5 6/7	22.2 6	20.3 6	19.5 5/6	10.8 3	–	2.3 0	0.3
Ikerfel/GPS[12]	2–5 May 2023	?	60.0	23.8 7	21.2 6	22.7 7	18.5 5	7.3 2	–	3.2 0	1.1
Gizaker/City Council of Vitoria[49]	23–24 Mar 2023	1,150	?	? 7/8	? 5/6	? 6/7	? 5	? 2/3	–	–	?
Gizaker/EiTB[3][50]	27 Feb–17 Mar 2023	400	61.0	25.6 7/8	19.2 5/6	22.3 6/7	18.3 5	10.0 2/3	–	2.8 0	3.3
PP[51][52]	14 Mar 2023	?	?	? 6	? 5/6	? 6/7	? 7	? 1/2	–	–	?
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	?	60.0	24.3 7	20.9 6	21.6 7	18.1 5	6.8 2	–	4.0 0	2.7
ElectoPanel/Crónica Vasca[53]	8 Dec–4 Feb 2023	1,647	?	25.8 8	22.5 6	23.6 7	17.0 5	6.1 1	0.8 0	3.8 0	2.2
Gizaker/Grupo Noticias[54][55]	13–16 Dec 2022	800	?	26.6 8	19.4 5	22.5 7	? 5	? 2	? 0	? 0	4.1
ElectoPanel/Crónica Vasca[56]	16 Jul–7 Dec 2022	1,257	?	25.6 7	22.8 7	23.4 7	16.9 5	6.1 1	1.0 0	4.1 0	2.2
Ikerfel/GPS[21]	3–7 Oct 2022	?	60.0	24.2 7	21.5 7	21.3 6	18.2 5	7.1 2	–	3.4 0	2.7
ElectoPanel/Crónica Vasca[57]	2–15 Jun 2022	770	?	25.5 7	22.3 7	22.8 6	? 5	6.8 2	1.0 0	3.9 0	2.7
Ikerfel/GPS[23]	6–10 Jun 2022	601	59.5	24.3 7	20.4 6	22.0 7	18.0 5	7.3 2	–	4.6 0	2.3
Gizaker/EiTB[58]	5–12 May 2022	400	?	24.5 7	21.0 6	22.6 7	17.7 5	8.0 2	1.3 0	3.9 0	1.9
ElectoPanel/Electomanía[59]	13 May-8 Oct 2021	361	?	24.9 7	22.0 6	22.1 7	16.4 5	7.7 2	1.1 0	3.6 0	2.8
Gizaker/City Council of Vitoria[60]	7-11 Jun 2021	1,150	?	? 8	? 6	? 7	? 4	? 2	–	–	?
2019 municipal election	26 May 2019	—	63.3	23.6 7	21.4 6	20.1 6	18.5 5	9.9 3	2.5 0	1.4 0	3.1

General Assemblies

Álava

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV								Lead
2023 foral election	28 May 2023	—	59.6	25.9 15	25.1 14	18.4 9	17.0 9	7.0 3	–	3.0 1	–	0.8
Gizaker/EiTB[61][62]	26 Apr–12 May 2023	1,543	61.9	30.8 17/18	24.4 13	16.6 9	15.4 8	8.8 3/4	–	1.7 0	–	6.4
Ikerfel/El Correo[63]	25 Apr–12 May 2023	2,850	68.3	31.1 16/18	21.0 11/13	19.1 10/11	15.3 8	9.2 3/4	–	2.7 0/1	–	10.1
Ikerfel/GPS[12]	2–5 May 2023	728	60.5	31.0	22.2	18.2	15.4	7.1	–	3.0	–	8.8
Aztiker/Gara[64]	11–25 Apr 2023	500	?	28.5 16	22.5 12	18.1 10	14.4 8	7.8 3	–	5.1 2	–	6.0
Gizaker/EiTB[65][66]	27 Feb–17 Mar 2023	1,543	62.5	31.7 18/19	23.6 13	18.0 9/10	13.8 7/8	8.6 3	–	2.4 0/1	–	8.1
Ikerfel/Álava Deputation[67]	26 Feb–15 Mar 2023	1,200	57.7	31.3 18/19	24.2 13/14	17.2 8/9	13.9 7/8	7.4 2/3	–	2.9 0/1	–	7.1
Aztiker/Gara[68]	14–25 Feb 2023	500	?	28.8 16	22.2 12	18.1 10	14.2 8	7.5 3	–	5.1 2	–	6.6
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	728	58.5	31.5	22.8	18.0	15.0	6.6	–	3.1	–	8.7
Ikerfel/GPS[69][70]	13–20 Oct 2022	1,204	55.2	31.5 18	23.1 12/13	18.0 8/10	15.1 7/8	7.8 3	–	2.4 0/1	–	8.4
Ikerfel/GPS[21]	3–7 Oct 2022	800	59.5	30.5	23.2	18.8	14.0	6.7	–	3.0	–	7.3
Ikerfel/GPS[23]	6–10 Jun 2022	800	58.5	31.6	23.3	17.0	14.0	6.8	–	3.4	–	8.3
Gizaker/EiTB[71]	5–12 May 2022	550	?	32.0	23.0	18.1	14.2	7.3	0.6	2.8	–	9.0
2020 regional election	12 Jul 2020	—	49.0	31.9	24.6	15.5	[a]	8.0	[a]	3.8	11.4	7.3
November 2019 general election	10 Nov 2019	—	66.6	23.6	16.1	21.9	14.9	16.5	1.5	3.8	–	2.7
2019 foral election	26 May 2019	—	65.3	29.4 17	21.0 12	18.9 10	15.0 8	9.9 4	2.3 0	1.4 0	–	8.4

Biscay

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV								Lead
2023 foral election	28 May 2023	—	60.1	38.4 23	25.0 15	15.9 8	7.3 2	8.2 3	–	2.0 0	–	13.4
Gizaker/EiTB[61][72]	26 Apr–12 May 2023	2,483	61.8	44.3 25/26	21.8 11/12	15.9 8	8.4 4	6.7 2	–	1.8 0	–	22.5
Ikerfel/El Correo[73]	25 Apr–12 May 2023	2,850	63.9	43.4 25/26	21.1 10/12	17.1 8/9	8.9 4	7.0 1/3	–	1.1 0	–	22.3
Ikerfel/GPS[12]	2–5 May 2023	1,318	62.5	44.2	22.0	15.4	7.0	6.8	–	1.7	–	22.2
Gizaker/Biscay Deputation[74]	17–25 Apr 2023	3,000	65.1	43.4 25/26	22.1 12/13	15.3 8	9.8 4	6.2 1	–	2.0 0	–	21.3
Aztiker/Gara[64]	11–25 Apr 2023	500	?	42.4 25	21.5 12	16.1 9	8.4 3	6.5 2	–	2.6 0	–	20.9
Gizaker/EiTB[65][75]	27 Feb–17 Mar 2023	2,483	66.7	45.4 26	22.6 12	15.3 8	8.4 4	5.2 1	–	1.9 0	–	22.8
Aztiker/Gara[68]	14–25 Feb 2023	500	?	42.9 26	21.3 11	16.1 9	8.1 4	6.4 1	–	2.5 0	–	21.6
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	1,318	59.5	44.6	22.2	15.7	7.3	7.2	–	1.4	–	22.4
Ikerfel/GPS[21]	3–7 Oct 2022	1,449	60.5	44.4	22.4	14.4	8.2	7.1	–	1.2	–	22.0
Gizaker/Biscay Deputation[76]	8–22 Jun 2022	3,000	64.7	44.5 25/26	21.5 12	15.3 8	8.9 3/4	6.5 2	1.0 0	1.5 0	–	23.0
Ikerfel/GPS[23]	6–10 Jun 2022	1,449	59.5	44.6	22.3	14.7	7.8	7.3	–	1.7	–	22.3
Gizaker/EiTB[77]	5–12 May 2022	600	?	45.7	22.2	15.1	7.6	6.6	0.8	1.5	–	23.5
Ikerfel/Biscay Deputation[78][79]	8–29 Dec 2021	2,503	55.4	44.6 25/26	21.9 12/13	14.8 8	8.3 4	6.6 1	0.8 0	1.9 0	–	22.7
Gizaker/Biscay Deputation[80]	16–30 Jun 2021	3,000	60.7	45.5 26	21.0 11	15.0 8	9.1 4	6.4 2	1.1 0	1.0 0	–	24.5
2020 regional election	12 Jul 2020	—	50.4	42.2	23.7	13.5	8.5	[a]	[a]	1.9	6.8	18.5
November 2019 general election	10 Nov 2019	—	66.8	35.2	15.0	19.1	15.4	8.8	1.1	2.4	–	16.1
2019 foral election	26 May 2019	—	65.7	43.1 25	19.7 10	16.5 8	10.5 6	6.6 2	1.2 0	0.9 0	–	23.4

Gipuzkoa

Polling firm/Commissioner	Fieldwork date	Sample size	Turnout	PNV								Lead
2023 foral election	28 May 2023	—	59.9	32.0 17	36.6 22	15.6 7	6.5 2	6.3 3	–	–	–	4.6
Gizaker/EiTB[61][81]	26 Apr–12 May 2023	2,623	64.0	36.9 21/22	35.3 19/20	14.9 7	7.0 2	4.4 1	–	1.2 0	–	1.6
Ikerfel/El Correo[82]	25 Apr–12 May 2023	2,850	65.2	35.2 19/21	33.5 18/19	17.1 8/9	8.9 2/4	4.9 1	–	–	–	1.7
Ikerfel/GPS[12]	2–5 May 2023	984	63.0	35.9	33.1	16.4	7.1	4.9	–	–	–	0.5
Aztiker/Gara[64]	11–25 Apr 2023	500	?	34.4 20	33.9 19	16.4 9	7.0 2	4.5 1	–	1.9 0	–	0.5
Gizaker/Gipuzkoa Deputation[83]	27–31 Mar 2023	1,200	65.1	36.2 20/22	34.0 19	15.9 7/8	7.3 2/3	4.6 1	–	1.1 0	–	2.2
Gizaker/EiTB[65][84]	27 Feb–17 Mar 2023	2,623	67.2	37.1 21	33.1 18	15.9 9	7.8 2	4.2 1	–	1.4 0	–	4.0
Aztiker/Gara[68]	14–25 Feb 2023	500	?	34.9 20	33.6 19	16.5 9	6.8 2	4.5 1	–	1.8 0	–	1.3
Ikerfel/GPS[20]	31 Jan–6 Feb 2023	984	59.0	36.2	32.7	16.0	7.1	4.8	–	1.3	–	3.5
Gizaker/Gipuzkoa Deputation[85]	1–12 Dec 2022	1,200	64.9	36.7 21	34.0 19	16.0 8	7.3 2	3.9 1	–	1.2 0	–	2.7
Ikerfel/GPS[21]	3–7 Oct 2022	1,084	59.5	36.3	33.0	16.6	7.0	4.4	–	1.0	–	3.3
Ikerfel/GPS[23]	6–10 Jun 2022	1,084	60.0	36.4	33.5	15.9	7.0	4.7	–	1.1	–	2.9
Gizaker/Gipuzkoa Deputation[86][87]	16–24 May 2022	1,200	64.1	37.0 21	33.2 19	15.5 7	8.3 3	4.0 1	–	1.0 0	–	3.8
Gizaker/EiTB[88]	5–12 May 2022	600	?	36.3	33.8	16.7	7.4	4.6	0.8	0.1	–	2.5
Gizaker/Gipuzkoa Deputation[89]	19–24 Nov 2021	1,200	63.9	36.9 21	34.5 19	15.2 8	8.0 2	4.8 1	–	1.0 0	–	2.4
Gizaker/Gipuzkoa Deputation[90]	26–29 Apr 2021	1,200	63.2	37.5 21	33.2 19	16.3 8	7.7 2	4.1 1	–	0.9 0	–	4.3
Gizaker/Gipuzkoa Deputation[91][92]	24 Nov–1 Dec 2020	1,200	?	36.9 21	33.5 19	15.0 7	8.6 3	3.8 1	0.8 0	–	–	3.4
2020 regional election	12 Jul 2020	—	52.2	36.1	34.9	12.8	7.1	[a]	[a]	1.3	4.6	1.2
Gizaker/Gipuzkoa Deputation[93][94]	11–20 May 2020	850	63.0	34.2	31.4	18.5	8.8	5.5	0.5	–	–	2.8
November 2019 general election	10 Nov 2019	—	65.8	30.5	25.8	18.1	15.0	6.2	1.9	1.0	–	4.7
2019 foral election	26 May 2019	—	66.7	35.6 20	31.6 17	17.1 9	8.9 4	4.7 1	1.0 0	–	–	4.0

Notes

1. Within PP+Cs.