In the run up to the 2015 Spanish general election, various organisations carried out opinion polling to gauge voting intention in autonomous communities in Spain during the term of the 10th Cortes Generales. Results of such polls are displayed in this article. The date range for these opinion polls is from the previous general election, held on 20 November 2011, to the day the next election was held, on 20 December 2015.

Voting intention estimates refer mainly to a hypothetical Congress of Deputies election. 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.

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 are displayed below the percentages in a smaller font.

Autonomous communities Andalusia

Polling firm/Commissioner Fieldwork date Sample size Turnout IULV Lead 2015 general election 20 Dec 2015 69.1 29.1 31.5 5.8 0.5 16.9 13.8 2.4 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 28.2 28.6 6.2 1.1 16.9 16.1 0.4 GIPEyOP 27 Nov–14 Dec 2015 902? 24.4 28.3 5.2 – 22.3 16.6 3.9 Celeste-Tel 1–12 Dec 2015 3,200? 29.5 33.6 5.3 – 11.8 17.6 4.1 GAD3/ABC 16 Nov–11 Dec 2015????? –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 28.0 28.0 5.0 – 16.0 21.0 Tie Redondo & Asociados 1–9 Dec 2015?? 26.2 29.6? – 18.6 17.2 3.4 NC Report/La Razón 13 Nov–7 Dec 2015 2,300? 28.4 33.0 5.0 0.4 18.0 13.3 4.6 JM&A/Público 6 Dec 2015?? 28.1 26.7? –?? 1.4 diarioelectoral.com 2–4 Dec 2015 1,800? 27.2 39.7 4.0 – 13.1 15.5 12.5 A+M/20minutos 26 Nov–4 Dec 2015 950???? –??? GAD3/ABC 10 Nov–3 Dec 2015????? –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 28.0 25.9? – 18.6 19.3 2.1 Commentia/Grupo Joly 20–30 Nov 2015 850? 28.2 27.3 4.8 – 13.0 20.7 0.9 Deimos Estadística 22 Nov 2015?? 21.9 30.6 8.0 – 16.1 17.3 8.7 JM&A/Público 19 Nov 2015?? 28.6 26.8? – 13.5 18.7 1.8 CIS 27 Oct–16 Nov 2015 2,689???? –??? GAD3/ABC 19 Oct–12 Nov 2015????? –??? JM&A/Público 22 Oct 2015?? 28.7 31.7? – 14.0? 3.0 Celeste-Tel 7–26 Sep 2015 1,200? 28.5 33.9 5.2 – 15.1 12.2 5.4 2015 regional election 22 Mar 2015 62.3 26.7 35.4 6.9 1.9 14.9 9.3 8.7 2014 EP election 25 May 2014 41.9 25.9 35.1 11.6 7.1 7.1 1.7 9.2 Metroscopia/El País 30 Nov 2013?????? – –? 2012 regional election 25 Mar 2012 60.8 40.7 39.6 11.3 3.4 – – 1.1 NC Report/La Razón 1–17 Feb 2012 550????? – –? 2011 general election 20 Nov 2011 68.9 45.6 36.6 8.3 4.8 – – 9.0

Aragon

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 72.6 31.3 23.0 6.2 0.8 18.6 17.2 8.3 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 28.2 23.0 6.2 1.2 20.6 18.3 5.2 GIPEyOP 27 Nov–14 Dec 2015 316? 29.7 18.8 8.8 – 22.1 16.8 7.6 GAD3/ABC 16 Nov–11 Dec 2015????? – ?? Tie NC Report/La Razón 13 Nov–11 Dec 2015 800? 33.9 23.7 5.2 0.3 17.2 17.8 10.2 A+M/Heraldo de Aragón 26 Nov–10 Dec 2015 1,600? 31.4 22.8 6.6 – 15.2 20.8 8.6 Sigma Dos/El Mundo 1–9 Dec 2015?? 27.0 19.0 7.0 – 18.0 26.0 1.0 Redondo & Asociados 1–9 Dec 2015?? 28.1 18.4? – 15.6 18.4 9.7 GAD3/ABC 10 Nov–3 Dec 2015????? – ?? Tie Redondo & Asociados 25 Nov–1 Dec 2015?? 29.1 22.6? – 15.3 19.4 6.5 CIS 27 Oct–16 Nov 2015 897???? – ??? 2015 regional election 24 May 2015 66.3 27.5 21.4 4.2 0.9 6.9 4.6 20.6 9.4 6.1 2014 EP election 25 May 2014 45.7 27.9 24.3 9.4 8.5 – 4.5 9.5 2.9 3.6 Metroscopia/El País 30 Nov 2013????? – – – – Tie NC Report/La Razón 1–17 Feb 2012 250???? – – –? 2011 general election 20 Nov 2011 71.0 47.7 31.5 10.5 5.8 – – 16.2

Asturias

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 63.8 30.1 23.3 8.4 0.6 21.3 13.6 6.8 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 25.3 21.2 9.1 0.7 25.4 15.0 0.1 GIPEyOP 27 Nov–14 Dec 2015 201? 23.5 24.5 7.8 – 21.8 18.1 1.0 GAD3/ABC 16 Nov–11 Dec 2015???? ? –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 37.0 18.0 9.0 – 15.0 17.0 19.0 Redondo & Asociados 1–9 Dec 2015?? 30.0 19.4 ? – 21.8 19.1 8.2 NC Report/La Razón 13 Nov–9 Dec 2015 400? 27.8 25.1 8.5 0.2 19.1 16.2 2.7 GAD3/ABC 10 Nov–3 Dec 2015???? ? –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 29.4 22.6 ? – 20.0 18.8 6.8 CIS 27 Oct–16 Nov 2015 419??? ? –??? 2015 regional election 24 May 2015 55.8 21.6 26.5 8.2 11.9 0.8 19.1 7.1 4.9 2014 EP election 25 May 2014 39.0 24.2 26.1 4.2 12.9 6.0 13.6 2.5 1.9 Metroscopia/El País 30 Nov 2013?????? – – –? 2012 regional election 25 Mar 2012 51.1 21.5 32.1 24.8 13.8 3.7 – – 7.3 NC Report/La Razón 1–17 Feb 2012 200????? – – – Tie 2011 general election 20 Nov 2011 64.6 35.4 29.3 14.7 13.2 3.9 – – 6.1

Balearic Islands

Polling firm/Commissioner Fieldwork date Sample size Turnout El Pi Lead 2015 general election 20 Dec 2015 63.3 29.1 18.3 7.0 2.4 0.5 2.7 23.1 14.8 6.0 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 27.4 18.5 7.6 2.3 0.8 2.6 24.8 14.0 2.6 GIPEyOP 27 Nov–14 Dec 2015 147? 27.4 17.4 9.5 3.6 –? 24.8 11.8 2.6 Gadeso 13 Dec 2015 900???? – –???? GAD3/ABC 16 Nov–11 Dec 2015???? – – – –??? IBES/Última Hora 7–10 Dec 2015?? 26.0–27.0 19.0–20.0 7.0–8.0? – 4.0 18.0–19.0 18.0–20.0 7.0 Sigma Dos/El Mundo 1–9 Dec 2015?? 32.0 13.0 – 3.0 – – 26.0 16.0 6.0 Redondo & Asociados 1–9 Dec 2015?? 33.5 21.8 –? – – 17.7 19.7 11.7 NC Report/La Razón 13 Nov–5 Dec 2015 400? 28.2 24.5 6.5 1.1 0.4 4.3 11.4 19.4 3.7 GAD3/ABC 10 Nov–3 Dec 2015???? – – – –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 34.4 21.9 –? – – 13.1 20.3 12.5 CIS 27 Oct–16 Nov 2015 354??? – – – –??? IBES/Última Hora 2–6 Nov 2015 1,500? 25.0 22.0 7.0 3.0 – 4.0 17.0 21.0 3.0 PSOE 11 Oct 2015???? – – – –??? IBES/Última Hora 5–9 Oct 2015 1,040? 26.0 23.0 3.0 – 5.0 21.0 19.0 3.0? 27.0 22.0 8.0 3.0 – 4.0 16.0 18.0 5.0 RegioPlus/Més 1–11 Sep 2015 1,011? 25.0–27.0 18.0–21.0 11.5–12.5 3.0–4.0 – 2.0–4.0 16.0–18.0 10.5–12.5 6.0–7.0 IBES/Última Hora 13–17 Jul 2015 600? 27.0 25.0 9.0 4.0 – 5.0 16.0 10.0 2.0 2015 regional election 24 May 2015 57.1 28.5 19.4 15.3 2.0 0.9 7.9 14.7 6.4 9.1 2014 EP election 25 May 2014 35.6 27.5 22.0 – 8.9 6.7 – 10.3 2.3 5.5 Metroscopia/El País 30 Nov 2013???? – – – – – – Tie NC Report/La Razón 1–17 Feb 2012 150??? – – – – – –? 2011 general election 20 Nov 2011 61.0 49.6 28.9 7.2 4.9 4.2 – – – 20.7

Basque Country

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 69.0 24.7 15.1 13.2 11.6 2.9 0.3 26.0 4.1 1.3 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 22.9 18.2 11.5 8.9 3.4 0.7 26.0 5.9 3.1 GIPEyOP 27 Nov–14 Dec 2015 249? 24.4 20.2 16.1 10.0 3.7 – 16.1 6.9 4.2 GAD3/ABC 16 Nov–11 Dec 2015?????? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 23.0 18.0 14.0 12.0 – – 22.0? 1.0 Redondo & Asociados 1–9 Dec 2015?? 26.6 19.1 12.1 10.5 – – 12.0 8.0 7.5 NC Report/La Razón 13 Nov–5 Dec 2015 825? 25.6 21.3 15.0 12.6 1.7 0.9 17.4 2.9 4.3 GAD3/ABC 10 Nov–3 Dec 2015?????? – –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 25.0 18.3 14.6 11.3 – – 11.5 8.3 6.7 Aztiker/Gara 16–28 Nov 2015 1,650? 27.3 19.1 14.1 9.8 3.1 0.2 15.7 8.2 8.2 Gizaker/Grupo Noticias 14–18 Nov 2015 1,800? 30.5 20.4 13.0 9.7 – – 19.2 3.7 10.1 CIS 27 Oct–16 Nov 2015 1,283????? – –??? Ikertalde/GPS 13–19 Oct 2015 2,520 68.5 27.4 19.9 14.6 11.4 2.2 0.3 17.7 4.4 7.5 2015 foral elections 24 May 2015 63.8 33.3 22.4 13.6 9.3 2.7 0.5 13.7 2.1 10.9 2015 local elections 24 May 2015 63.8 33.1 23.4 14.6 9.4 3.1 0.1 5.5 1.6 9.7 2014 EP election 25 May 2014 43.1 27.5 23.4 13.8 10.2 5.6 3.3 6.9 0.8 4.1 Metroscopia/El País 30 Nov 2013?????? – – – –? 2012 regional election 21 Oct 2012 64.0 34.2 24.7 18.9 11.6 2.7 1.9 – – 9.5 NC Report/La Razón 1–17 Feb 2012 300????? – – – –? 2011 general election 20 Nov 2011 67.3 27.4 24.1 21.6 17.8 3.7 1.8 – – 3.3

Canary Islands

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 60.3 28.5 22.0 8.2 3.1 0.5 23.3 11.4 5.2 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 27.9 22.0 6.0 3.1 0.5 24.0 12.4 3.9 GIPEyOP 27 Nov–14 Dec 2015 185? 16.5 21.8 14.3 3.6 – 26.0 13.0 4.2 Hamalgama Métrica/La Provincia 5–12 Dec 2015 1,600? 24.5 24.4 6.9 2.3 0.6 16.8 22.4 0.1 TSA/Canarias7 4–11 Dec 2015 1,802? 21.9 25.3 9.6 – – 17.9 19.8 3.4 GAD3/ABC 16 Nov–11 Dec 2015????? – – ??? Sigma Dos/El Mundo 1–9 Dec 2015?? 32.0 18.0 8.0 – – 16.0 21.0 11.0 Redondo & Asociados 1–9 Dec 2015?? 27.2 24.5 11.5 – – 14.5 16.6? NC Report/La Razón 13 Nov–7 Dec 2015 600? 24.3 23.0 8.4 3.6 0.8 17.0 20.9 1.3 TSA/Canarias7 25 Nov–3 Dec 2015 1,800? 21.5 24.8 8.5 – – 16.6 20.9 3.3 GAD3/ABC 10 Nov–3 Dec 2015????? – – ??? Redondo & Asociados 25 Nov–1 Dec 2015?? 27.9 18.2 12.9 – – 11.2 16.1 9.7 CIS 27 Oct–16 Nov 2015 731???? – – ??? 2015 regional election 24 May 2015 55.8 18.6 19.9 18.2 2.2 0.9 10.2 14.5 5.9 1.3 2014 EP election 25 May 2014 35.0 23.4 22.2 12.2 10.5 6.9 – 11.0 1.4 1.2 Metroscopia/El País 30 Nov 2013????? – – – –? NC Report/La Razón 1–17 Feb 2012 250???? – – – –? 2011 general election 20 Nov 2011 59.6 48.0 24.9 15.5 4.3 2.6 – – 23.1

Cantabria

Polling firm/Commissioner Fieldwork date Sample size Turnout PRC Lead 2015 general election 20 Dec 2015 71.0 36.9 22.4 – 0.8 4.4 17.9 15.2 14.5 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 33.8 22.2 – 1.5 5.5 18.0 16.1 11.6 GIPEyOP 27 Nov–14 Dec 2015 94? 33.7 29.6 – – 8.2 14.9 10.7 4.1 GAD3/ABC 16 Nov–11 Dec 2015???? – – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 33.0 20.0 – – 4.0 19.0 23.0 10.0 Redondo & Asociados 1–9 Dec 2015?? 38.1 17.9 – – – 14.2 21.5 16.6 NC Report/La Razón 13 Nov–5 Dec 2015 400? 35.3 25.7 – 2.0 3.2 13.0 18.8 9.6 GAD3/ABC 10 Nov–3 Dec 2015???? – – –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 37.5 20.9 – – – 13.1 21.3 16.2 CIS 27 Oct–16 Nov 2015 285??? – – –??? 2015 regional election 24 May 2015 66.2 32.6 14.0 29.9 0.7 2.5 8.9 6.9 2.7 2014 EP election 25 May 2014 44.1 34.7 24.3 – 8.2 9.0 9.2 3.0 10.4 Metroscopia/El País 30 Nov 2013???? – – – – –? NC Report/La Razón 1–17 Feb 2012 150??? – – – – –? 2011 general election 20 Nov 2011 71.6 52.2 25.2 12.5 3.6 3.6 – – 27.0

Castile and León

Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 71.2 39.1 22.5 0.9 4.6 15.1 15.4 16.6 TNS Demoscopia/RTVE–FORTA 20 Dec 2015?? 35.6 20.6 1.1 4.9 17.9 16.4 15.0 GIPEyOP 27 Nov–14 Dec 2015 389? 34.6 24.4 – 3.5 15.9 16.2 10.2 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? NC Report/La Razón 13 Nov–11 Dec 2015 2,350? 38.1 22.8 0.3 3.2 15.2 18.3 15.3 Sigma Dos/El Mundo 1–9 Dec 2015?? 37.0 18.0 – 4.0 15.0 23.0 14.0 Redondo & Asociados 1–9 Dec 2015?? 38.0 18.8 – – 15.4 22.8 15.2 GAD3/ABC 10 Nov–3 Dec 2015???? – –??? Redondo & Asociados 25 Nov–1 Dec 2015?? 37.4 21.4 – – 14.3 22.5 14.9 CIS 27 Oct–16 Nov 2015 2,245??? – –??? 2015 regional election 24 May 2015 64.9 37.7 25.9 1.4 4.1 12.1 10.3 11.8 2014 EP election 25 May 2014 45.9 37.5 23.4 8.3 8.3 8.1 2.7 14.1 Metroscopia/El País 30 Nov 2013????? – – –? NC Report/La Razón 1–17 Feb 2012 350???? – – –? 2011 general election 20 Nov 2011 71.3 55.4 29.2 6.1 5.6 – – 26.2

Castilla–La Mancha