In the run up to the 2015 Spanish general election, various organisations carried out opinion polling to gauge voting intention in constituencies 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.

Constituencies A Coruña Polling firm/Commissioner Fieldwork date Sample size Turnout Nós Lead 2015 general election 20 Dec 2015 62.7 35.5 20.4 4.5 0.5 9.9 26.3 9.2 GIPEyOP 27 Nov–14 Dec 2015 220? 35.9 11.8 8.2 – 14.2 27.1 8.8 GAD3/ABC 16 Nov–11 Dec 2015????? – ??? Sondaxe/La Voz de Galicia 1–9 Dec 2015 500? 37.3 16.4? – 17.3 22.2 15.1 Sigma Dos/El Mundo 1–9 Dec 2015?? 37.0 20.0 3.0 – 16.0 20.0 17.0 Redondo & Asociados 1–9 Dec 2015?? 38.9 19.7? – 15.7 19.1 19.2 Redondo & Asociados 25 Nov–1 Dec 2015?? 35.9 21.5? – 19.4 13.2 14.4 CIS 27 Oct–16 Nov 2015 409???? – ??? 2014 EP election 25 May 2014 38.3 32.3 21.2 7.9 3.8 11.6 9.3 1.9 – 11.1 2012 regional election 21 Oct 2012 54.5 45.4 18.8 9.6 1.8 16.6 – – – 26.6 2011 general election 20 Nov 2011 62.4 51.5 27.3 11.7 4.6 1.3 – – – – 24.2

Álava Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 71.1 18.8 14.1 11.8 15.8 3.8 0.4 27.0 5.9 8.2 GIPEyOP 27 Nov–14 Dec 2015 33? 15.8 15.4 18.5 18.6 3.8 – 6.9 13.6 0.1 GAD3/ABC 16 Nov–11 Dec 2015?????? – –?? Tie Sigma Dos/El Mundo 1–9 Dec 2015?? 23.0 15.0 12.0 15.0 – – 17.0? 6.0 Redondo & Asociados 1–9 Dec 2015?? 17.7 13.8 15.1 18.7 – –?? 1.0 Redondo & Asociados 25 Nov–1 Dec 2015?? 17.8 16.4 14.3 18.4 – –?? 0.6 Aztiker/Gara 16–28 Nov 2015 450? 19.0 12.2 16.9 18.5 2.6 0.6 15.0 11.5 0.5 Gizaker/Grupo Noticias 14–18 Nov 2015 600? 22.5 10.4 16.5 18.9 – – 18.6 7.0 3.6 CIS 27 Oct–16 Nov 2015 419????? – –?? Tie Ikertalde/GPS 13–19 Oct 2015 560 69.0 20.0 14.0 17.6 18.5 2.5 0.4 17.0 7.5 1.5 2015 foral elections 24 May 2015 65.6 22.0 11.2 20.4 21.6 3.7 0.7 14.6 3.1 0.4 2014 EP election 25 May 2014 42.7 16.0 15.2 19.5 17.2 6.3 4.5 8.9 1.1 2.3 2012 regional election 21 Oct 2012 63.6 18.7 19.3 21.7 25.5 2.9 3.5 – – 3.8 2011 general election 20 Nov 2011 68.7 27.2 23.4 19.1 18.8 4.1 2.8 – – 3.8

Albacete Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 75.3 36.8 28.2 4.0 0.5 14.0 14.6 8.6 GIPEyOP 27 Nov–14 Dec 2015 151? 29.9 28.9 4.8 – 12.3 19.7 1.0 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 34.0 18.0 3.0 – 16.0 26.0 8.0 Redondo & Asociados 1–9 Dec 2015?? 36.5 19.6 – –? 22.0 14.5 Redondo & Asociados 25 Nov–1 Dec 2015?? 35.7 22.7 – –? 21.6 13.0 CIS 27 Oct–16 Nov 2015 252??? – –??? 2015 regional election 24 May 2015 70.8 36.7 33.8 3.8 1.0 11.2 9.6 2.9 2014 EP election 25 May 2014 46.9 35.6 28.8 9.0 7.5 7.4 2.2 6.8 2011 general election 20 Nov 2011 76.1 55.1 30.1 6.2 5.0 – – 25.0

Alicante Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 72.9 32.8 20.8 3.7 0.6 17.1 22.3 10.5 GIPEyOP 27 Nov–14 Dec 2015 720? 25.6 20.3 3.8 – 20.0 24.6 1.0 GAD3/ABC 16 Nov–11 Dec 2015???? – – ??? Sigma Dos/El Mundo 1–9 Dec 2015?? 30.0 23.0 6.0 – 22.0 16.0 7.0 Redondo & Asociados 1–9 Dec 2015?? 29.9 20.4 – – 25.4 17.5 5.5 Metroscopia/El País 2–3 Dec 2015 400 77 26.7 24.5 4.9 – 20.3 21.1 2.2 Redondo & Asociados 25 Nov–1 Dec 2015?? 30.8 23.1 – – 24.4 15.7 6.4 ODEC/PSPV 23 Nov 2015???? – – ??? CIS 27 Oct–16 Nov 2015 424??? – – ??? GAD3/ABC 14–29 Oct 2015???? – –??? –? Metroscopia/El País 5–7 Oct 2015 435??? – –??? –? 2015 regional election 24 May 2015 66.0 27.7 22.7 4.4 1.5 12.5 12.2 14.1 – 5.0 JM&A/El Mundo 17 May 2015?? 28.3 20.6??? 19.0 21.0 – 7.3 2014 EP election 25 May 2014 44.8 30.6 22.8 10.0 8.9 4.8 8.9 3.2 – 7.8 2011 general election 20 Nov 2011 73.5 55.2 27.0 6.5 5.6 3.1 – – – 28.2

Almería Polling firm/Commissioner Fieldwork date Sample size Turnout IULV Lead 2015 general election 20 Dec 2015 63.7 38.0 28.9 3.5 0.5 12.8 14.4 9.1 GIPEyOP 27 Nov–14 Dec 2015 83? 30.6 27.0 3.9 – 17.0 18.3 3.6 Deimos Estadística 9–12 Dec 2015 601? 33.9 19.0 – – 16.3 24.3 9.6 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 38.0 24.0 2.0 – 13.0 21.0 14.0 Redondo & Asociados 1–9 Dec 2015?? 35.1 25.3 – – 14.6 19.1 9.8 Deimos Estadística 3–5 Dec 2015 451? 35.9 21.8 3.2 0.7 11.8 25.5 10.4 Redondo & Asociados 25 Nov–1 Dec 2015?? 36.8 22.2 – – 14.3 21.1 14.6Demoscopia Servicios/PP 23–30 Nov 2015 1,200? 41.3 26.4 3.0 – 13.0 14.9 14.9 CIS 27 Oct–16 Nov 2015 255??? – –?? Tie GAD3/ABC 19 Oct–12 Nov 2015???? – –??? 2015 regional election 22 Mar 2015 60.5 36.9 32.9 4.2 1.8 11.0 9.4 4.0 2014 EP election 25 May 2014 37.8 35.1 32.9 7.6 6.6 5.6 2.4 2.2 2012 regional election 25 Mar 2012 57.0 51.2 35.4 7.1 2.9 – – 15.8 2011 general election 20 Nov 2011 67.2 57.6 29.9 5.3 3.9 – – 27.7

Asturias

Ávila Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 73.8 46.1 19.9 0.9 3.8 11.7 15.7 26.2 GIPEyOP 27 Nov–14 Dec 2015 20? 40.0 21.3 – 3.4 12.1 20.2 18.7 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 43.0 16.0 – 3.0 10.0 25.0 18.0 Redondo & Asociados 1–9 Dec 2015?? 43.8? – –? 24.5 19.3 Redondo & Asociados 25 Nov–1 Dec 2015?? 43.1? – –? 24.2 18.9 CIS 27 Oct–16 Nov 2015 236??? – –??? 2015 regional election 24 May 2015 69.8 45.3 22.1 2.2 4.0 10.1 11.9 23.2 2014 EP election 25 May 2014 51.4 45.4 19.2 8.0 7.0 5.1 2.2 26.2 2011 general election 20 Nov 2011 75.4 61.9 22.9 7.8 4.5 – – 39.0

Badajoz Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 72.3 34.5 37.2 3.1 0.4 11.9 11.4 2.7 GIPEyOP 27 Nov–14 Dec 2015 66? 36.2 32.7 4.5 – 14.8 8.7 3.5 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 38.0 27.0 6.0 – 10.0 17.0 11.0 Redondo & Asociados 1–9 Dec 2015?? 28.6 31.6 – – 16.8 17.4 3.0 Redondo & Asociados 25 Nov–1 Dec 2015?? 32.0 26.5 – – 16.9 20.2 5.5 CIS 27 Oct–16 Nov 2015 255??? – –??? Metroscopia/El País 4 Nov 2015 400 76 31.9 32.5 4.5 – 11.4 17.2 0.6 2015 regional election 24 May 2015 71.3 36.3 43.7 4.8 0.6 7.3 3.9 7.4 2014 EP election 25 May 2014 44.1 34.9 40.1 6.5 4.3 5.7 0.9 5.2 2011 general election 20 Nov 2011 74.3 50.6 37.6 6.0 3.5 – – 13.0

Balearic Islands

Barcelona Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 69.6 16.3 – 11.3 14.5 0.2 13.5 – 13.2 1.7 26.9 – 10.6 GIPEyOP 27 Nov–14 Dec 2015 598? 13.8 – 8.7 19.0 – 19.5 – 17.7 – 16.6 – 0.5 GAD3/ABC 16 Nov–11 Dec 2015??? –? ? –? – ? –? –? Sigma Dos/El Mundo 1–9 Dec 2015?? 17.0 – 11.0 15.0 – 20.0 – 13.0 – 21.0 – 1.0 Redondo & Asociados 1–9 Dec 2015?? 19.5 – 13.4 12.1 – 20.3 – 12.1 – 19.3 – 0.8 Redondo & Asociados 25 Nov–1 Dec 2015?? 20.1 – 11.7 4.9 12.7 – 19.7 – 15.8 12.7 – – – 0.4 Metroscopia/El País 16–17 Nov 2015 600 76 18.5 – 9.5 12.6 – 19.8 – 13.1 – 20.7 – 0.9 CIS 27 Oct–16 Nov 2015 817?? –? ? –? – ? –? –? GAD3/ABC 14 Oct–4 Nov 2015??? –??? –? –??? – – Tie 2015 regional election 27 Sep 2015 75.0 13.7 – 8.8 – 18.8 8.3 2.5 10.1 36.1 17.3 2014 EP election 25 May 2014 46.7 15.2 19.8 10.1 11.3 21.9 1.4 6.9 – 5.2 – – 2.1 Feedback/La Vanguardia 30 Apr–8 May 2014??????? –? – – – –? Feedback/La Vanguardia 2–6 Sep 2013???????? – – – – –? 2012 regional election 25 Nov 2012 68.0 15.4 28.1 13.3 11.1 12.7 0.4 8.4 3.4 – – – 12.7 Feedback/La Vanguardia 21–27 Sep 2012??????? – – – – – –? 2011 general election 20 Nov 2011 65.9 27.8 27.2 20.9 9.1 6.5 1.3 – – – – – 0.6

Biscay Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 69.4 27.9 13.0 12.5 11.4 2.8 0.3 26.1 3.8 1.8 GIPEyOP 27 Nov–14 Dec 2015 122? 26.8 18.2 16.6 10.4 3.6 – 18.0 5.8 8.6 GAD3/ABC 16 Nov–11 Dec 2015?????? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 27.0 14.0 14.0 12.0 – – 23.0? 4.0 Redondo & Asociados 1–9 Dec 2015?? 29.8 12.3 15.2 12.0 – – 12.8 9.1 14.6 Redondo & Asociados 25 Nov–1 Dec 2015?? 29.4 14.7 14.5 12.1 – – 12.0 9.2 14.7 Aztiker/Gara 16–28 Nov 2015 600? 30.4 14.3 16.0 10.7 2.5 0.3 16.2 7.5 14.2 Gizaker/Grupo Noticias 14–18 Nov 2015 600? 35.0 12.9 16.5 8.7 – – 20.0? 15.0 CIS 27 Oct–16 Nov 2015 448????? – –?? Tie Ikertalde/GPS 13–19 Oct 2015 1,260 69.0 30.6 14.0 16.3 12.0 2.3 0.3 18.0 4.5 12.6 2015 foral elections 24 May 2015 62.6 37.6 12.5 18.9 8.2 2.6 0.6 14.5 2.1 18.7 2014 EP election 25 May 2014 44.3 31.8 13.6 19.9 10.0 5.7 3.2 6.7 0.8 11.9 2012 regional election 21 Oct 2012 64.5 37.9 18.7 21.2 11.7 2.7 1.8 – – 16.7 2011 general election 20 Nov 2011 68.1 32.6 21.4 19.2 17.7 3.8 1.7 – – 11.2

Burgos Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 72.4 38.0 20.7 1.1 4.7 17.1 15.6 17.3 GIPEyOP 27 Nov–14 Dec 2015 46? 32.9 24.3 – 4.6 17.3 16.9 8.6 GAD3/ABC 16 Nov–11 Dec 2015???? – –??? Sigma Dos/El Mundo 1–9 Dec 2015?? 38.0 17.0 – 4.0 18.0 20.0 18.0 Redondo & Asociados 1–9 Dec 2015?? 38.2 17.3 – –? 23.4 14.8 Redondo & Asociados 25 Nov–1 Dec 2015?? 37.6 20.2 – –? 23.1 14.5 Metroscopia/El País 28–29 Nov 2015 400 77 34.1 19.3 – 4.2 13.7 19.1 14.8 CIS 27 Oct–16 Nov 2015 254??? – –??? 2015 regional election 24 May 2015 63.7 36.5 24.7 1.8 3.9 14.2 12.1 11.8 2014 EP election 25 May 2014 47.4 36.8 20.2 9.1 8.3 9.7 2.5 16.6 2011 general election 20 Nov 2011 71.7 54.2 28.0 7.5 5.6 – – 26.2

Cáceres Polling firm/Commissioner Fieldwork date Sample size Turnout Lead 2015 general election 20 Dec 2015 71.9 35.3 34.0 2.9 0.4 13.9 11.4 1.3 GIPEyOP 27 Nov–14 Dec 2015 53? 35.8 32.7 4.1 – 12.4 13.0 3.1 GAD3/ABC 16 Nov–11 Dec 2015???? – –?? Tie Sigma Dos/El Mundo 1–9 Dec 2015?? 37.0 32.0 3.0 – 12.0 15.0 5.0 Redondo & Asociados 1–9 Dec 2015?? 32.6 31.2 – –?? 1.4 Redondo & Asociados 25 Nov–1 Dec 2015?? 33.0 26.2 – –? 20.5 6.8 CIS 27 Oct–16 Nov 2015 255??? – –?? Tie 2015 regional election 24 May 2015 71.6 38.2 38.0 3.4 0.6 9.2 5.1 0.2 2014 EP election 25 May 2014 44.8 36.6 36.5 6.0 5.1 5.6 1.1 0.1 2011 general election 20 Nov 2011 73.3 52.0 36.5 6.0 3.5 – – 15.5

Cádiz Polling firm/Commissioner Fieldwork date Sample size Turnout IULV Lead 2015 general election 20 Dec 2015 65.7 27.7 28.0 6.0 0.6 20.2 14.7 0.3 GIPEyOP 27 Nov–14 Dec 2015 141? 21.1 25.8 5.2 – 23.4 19.7 2.4 GAD3/ABC 16 Nov–11 Dec 2015???? – –?? Tie Sigma Dos/El Mundo 1–9 Dec 2015?? 26.0 27.0 5.0 – 18.0 22.0 1.0 Redondo & Asociados 1–9 Dec 2015?? 26.0 29.3 – – 18.0 17.0 3.3 Redondo & Asociados 25 Nov–1 Dec 2015?? 28.1 25.0 – – 18.2 19.1 3.1 CIS 27 Oct–16 Nov 2015 355??? – –?? Tie GAD3/ABC 19 Oct–12 Nov 2015???? – –?? Tie 2015 regional election 22 Mar 2015 57.7 24.0 31.6 6.7 2.1 18.9 10.4 7.6 2014 EP election 25 May 2014 36.8 23.7 30.9 12.1 7.5 10.7 1.8 7.2 2012 regional election 25 Mar 2012 53.2 40.5 35.6 12.7 3.3 – – 4.9 2011 general election 20 Nov 2011 63.8 47.1 32.8 8.7 4.8 – – 14.3

Cantabria

Castellón