In the run up to the 2016 Spanish general election, various organisations carried out opinion polling to gauge voting intention in autonomous communities and constituencies in Spain during the term of the 11th 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 December 2015, to the day the next election was held, on 26 June 2016.

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/CommissionerFieldwork dateSample sizeTurnoutIULVLead2016 general election26 Jun 201666.131.233.513.618.62.3Sigma Dos/RTVE–FORTA26 Jun 2016??32.128.612.022.63.5GIPEyOP6–20 Jun 2016696?30.230.414.522.60.2Sigma Dos/El Mundo9–16 Jun 2016??28.033.013.023.05.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón31 May–9 Jun 20162,30067.430.430.014.421.70.4CADPEA/UGR18 Jan–9 Feb 20161,20074.829.431.016.915.25.3–1.6CIS4–22 May 20162,858?????Tie2015 general election20 Dec 201569.131.529.116.913.85.8–2.4

Aragon

Polling firm/CommissionerFieldwork dateSample sizeTurnout Lead2016 general election26 Jun 201669.935.824.816.2–19.711.0Sigma Dos/RTVE–FORTA26 Jun 2016??33.523.414.2–23.310.1GIPEyOP6–20 Jun 2016188?31.822.018.0–25.56.3Sigma Dos/El Mundo9–16 Jun 2016??34.021.017.0–24.010.0DYM/El Confidencial14–15 Jun 2016?????–??A+M/Heraldo de Aragón13–15 Jun 20161,60064.732.725.617.3–21.57.1NC Report/La Razón6–15 Jun 201680072.333.622.915.2–24.39.3CIS4–22 May 2016840????–??2015 general election20 Dec 201572.631.323.018.617.26.2–8.3

Asturias Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201661.135.324.912.623.910.4GIPEyOP6–20 Jun 201697?29.525.216.426.62.9NC Report/La Razón18 Jun 2016??31.522.913.028.62.9Sigma Dos/El Mundo9–16 Jun 2016??34.023.015.025.09.0DYM/El Confidencial14–15 Jun 2016??????TieAsturbarómetro/La Nueva España20 May–12 Jun 2016405?30.623.812.228.22.4Metroscopia/El País6 Jun 20166006932.620.914.528.83.8CIS4–22 May 2016410??????2015 general election20 Dec 201563.830.123.321.313.68.4–6.8

Balearic Islands

Polling firm/CommissionerFieldwork dateSample sizeTurnoutEl PiLead2016 general election26 Jun 201660.735.120.114.6–25.49.7Sigma Dos/RTVE–FORTA26 Jun 2016??30.721.111.8–28.91.8GIPEyOP6–20 Jun 201665?31.620.815.9–29.02.6GADeso19 Jun 2016900?29.0–30.017.0–18.013.0–14.0–28.0–29.01.0IBES/Última Hora6–17 Jun 20161,000?32.020.013.0–29.03.0Sigma Dos/El Mundo9–16 Jun 2016??30.017.017.0–32.02.0DYM/El Confidencial14–15 Jun 2016?????–?TieIBES/Última Hora6–10 Jun 2016500?30.419.215.9–29.41.0Metroscopia/El País3–6 Jun 20166006327.417.816.6–33.05.6NC Report/La Razón31 May–6 Jun 201640059.730.919.215.7–30.9TieIBES/Última Hora30 May–3 Jun 2016500?30.620.014.7–28.62.0IBES/Última Hora23–26 May 2016500?31.120.313.0–29.21.9CIS4–22 May 2016369????–?TieIBES/Última Hora16–19 May 2016500?29.620.014.8–27.81.8IBES/Última Hora11–13 May 2016500?29.020.415.5–27.02.0IBES/Última Hora4–6 May 2016500?28.819.515.0–27.51.3IBES/Última Hora7–17 Mar 2016900?27.020.023.018.06.04.02.0–4.02015 general election20 Dec 201563.329.123.118.314.87.02.72.4–6.0

Basque Country

Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201665.224.913.314.212.93.529.14.2Sigma Dos/EITB26 Jun 2016??25.818.011.28.33.529.53.7GIPEyOP6–20 Jun 2016248?22.415.917.812.54.126.23.8Sigma Dos/El Mundo9–16 Jun 2016??24.014.012.012.04.031.07.0DYM/El Confidencial14–15 Jun 2016?????????Metroscopia/El País9–10 Jun 20161,8006923.013.312.611.94.131.78.7Gizaker/EITB8–9 Jun 20161,200?25.415.413.410.44.129.84.4NC Report/La Razón30 May–3 Jun 201682564.623.514.713.211.54.529.25.7Ikertalde/GPS23 May–2 Jun 20162,31069.524.115.213.711.73.529.65.5CIS4–22 May 20161,230????????SyM Consulting5–20 May 20161,274?24.214.616.111.24.527.53.3Gizaker/EITB11–12 May 20161,200?25.415.513.110.54.528.83.4Gizaker/EITB13–14 Apr 20161,20067.025.326.915.812.410.23.74.1–1.62015 general election20 Dec 201569.026.024.715.113.211.64.12.9–1.3

Canary Islands Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201659.134.122.512.08.020.311.6GIPEyOP6–20 Jun 201680?30.722.016.0?27.63.1NC Report/La Razón18 Jun 2016??29.221.911.17.426.03.2Hamalgama Métrica/La Provincia8–17 Jun 20162,000?30.921.512.26.425.95.0Sigma Dos/El Mundo9–16 Jun 2016??29.023.014.07.025.04.0DYM/El Confidencial14–15 Jun 2016????????Metroscopia/El País2–3 Jun 20161,200?30.121.613.15.726.04.1CIS4–22 May 2016794??????Tie2015 general election20 Dec 201560.328.523.322.011.48.23.1–5.2

Cantabria Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201668.541.523.514.417.718.0GIPEyOP6–20 Jun 201639?38.021.617.121.716.3Sigma Dos/El Mundo9–16 Jun 2016??39.019.019.021.018.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón30 May–5 Jun 201640066.937.423.114.921.314.3CIS4–22 May 2016320??????2015 general election20 Dec 201571.036.922.417.915.24.4–14.5

Castile and León Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201668.844.323.114.215.621.2GIPEyOP6–20 Jun 20161,212?40.720.916.420.619.8NC Report/La Razón18 Jun 2016??40.422.014.219.118.4Sigma Dos/El Mundo9–16 Jun 2016??42.019.016.020.022.0DYM/El Confidencial14–15 Jun 2016???????CIS4–22 May 20162,161??????2015 general election20 Dec 201571.239.122.515.415.14.6–16.6

Castilla–La Mancha

Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201671.842.727.313.014.715.4Sigma Dos/RTVE–FORTA26 Jun 2016??36.728.012.818.48.7GIPEyOP6–20 Jun 2016278?41.125.313.219.015.8Sigma Dos/El Mundo9–16 Jun 2016??40.024.014.019.016.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón6–15 Jun 20161,35072.839.327.113.617.312.2CIS4–22 May 20161,243??????2015 general election20 Dec 201575.338.128.413.813.73.6–9.7

Catalonia

Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201663.424.518.216.113.910.913.46.3Sigma Dos/RTVE–FORTA26 Jun 2016??28.520.814.49.710.510.47.7GIPEyOP6–20 Jun 2016293?23.717.717.613.312.812.56.0GESOP/El Periódico14–18 Jun 2016800?27.519.515.211.511.411.58.0GAD3/La Vanguardia13–16 Jun 2016800?28.415.715.112.113.211.812.7Sigma Dos/El Mundo9–16 Jun 2016??27.016.015.012.013.013.011.0DYM/El Confidencial14–15 Jun 2016?????????A+M/20minutos13–15 Jun 201680070.330.316.816.510.812.110.113.5GESOP/El Periódico3–7 Jun 2016800?27.015.716.011.414.710.911.0NC Report/La Razón30 May–3 Jun 201682565.026.615.915.312.714.411.510.7CDC31 May 2016?67???????ERC26 May 20161,5006626.019.013.013.014.011.07.0CIS4–22 May 20162,057????????Opinòmetre/CEO22 Feb–8 Mar 20161,5006825.519.215.212.414.510.06.32015 general election20 Dec 201568.624.716.015.715.113.011.18.7

Extremadura Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201668.634.539.910.513.15.4GIPEyOP6–20 Jun 201665?29.836.712.618.76.9Sigma Dos/El Mundo9–16 Jun 2016??31.037.012.017.06.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón31 May–6 Jun 201657569.935.434.6?15.50.8CIS4–22 May 2016480?????Tie2015 general election20 Dec 201572.236.034.812.711.43.0–1.2

Galicia

Polling firm/CommissionerFieldwork dateSample sizeTurnoutBNGLead2016 general election26 Jun 201658.841.522.222.28.62.919.3Sigma Dos/CRTVG26 Jun 201610,000?36.925.722.18.13.611.2GIPEyOP6–20 Jun 2016123?37.826.520.29.04.711.3NC Report/La Razón18 Jun 2016??38.924.520.98.7?14.4Sigma Dos/El Mundo9–16 Jun 2016??37.025.022.010.0?12.0DYM/El Confidencial14–15 Jun 2016????????Sondaxe/La Voz de Galicia6–14 Jun 20161,4006039.326.819.88.13.712.5Sondaxe/La Voz de Galicia24–31 May 20165006037.029.017.39.83.38.0CIS4–22 May 20161,256???????Metroscopia/El País19–22 Apr 20162,000?36.726.218.711.63.110.5GAD3/ABC4–6 Apr 2016807?38.320.820.512.04.517.5Sondaxe/La Voz de Galicia5–9 Mar 2016??39.923.221.68.94.116.72015 general election20 Dec 201561.537.125.021.39.14.312.1

La Rioja Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201670.642.624.314.016.618.3GIPEyOP6–20 Jun 201637?38.922.015.821.016.9NC Report/La Razón18 Jun 2016??39.923.114.419.216.8Sigma Dos/El Mundo9–16 Jun 2016??37.025.016.019.012.0DYM/El Confidencial14–15 Jun 2016???????CIS4–22 May 2016256??????2015 general election20 Dec 201572.438.323.715.815.14.2–14.6

Madrid Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201670.838.217.819.621.316.9GIPEyOP6–20 Jun 2016918?31.220.019.425.46.8Sigma Dos/El Mundo9–16 Jun 2016??36.020.016.025.011.0A+M/20minutos15 Jun 2016700?35.518.719.426.78.8DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón30 May–9 Jun 201660070.434.817.917.526.08.8JM&A/ctxt8 Jun 2016??35.717.119.924.211.5Metroscopia/El País23 May 20168007235.017.917.626.18.9CIS4–22 May 2016770??????GAD3/ABC14–29 Apr 20168177434.718.818.417.96.2–15.9Metroscopia/El País15 Mar 2016800?31.217.222.318.67.5–8.92015 general election20 Dec 201574.133.420.918.817.85.3–12.5

Murcia Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201669.646.720.315.714.526.4GIPEyOP6–20 Jun 2016155?40.221.216.019.019.0Sigma Dos/El Mundo9–16 Jun 2016??46.017.015.020.026.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón31 May–9 Jun 201640069.742.119.916.817.722.2CIS4–22 May 2016464??????Metroscopia/El País11 Apr 20166007339.019.420.010.76.5–19.02015 general election20 Dec 201571.140.420.317.715.23.1–20.1

Navarre

Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201667.431.917.39.44.36.128.33.6Sigma Dos/EITB26 Jun 2016??25.114.110.94.86.634.49.3GIPEyOP6–20 Jun 201638?31.515.67.0–5.932.51.0Sigma Dos/El Mundo9–16 Jun 2016??31.013.012.07.06.028.03.0DYM/El Confidencial14–15 Jun 2016????????TieCIES/Diario de Navarra7–13 Jun 20168007127.516.19.37.58.928.81.3NC Report/La Razón6–11 Jun 201640068.730.615.48.68.16.826.54.1Metroscopia/El País6 Jun 20166007128.812.18.23.98.135.97.1SyM Consulting/Navarra.com1–2 Jun 2016522?33.316.110.58.2?28.64.7CIS4–22 May 2016334???????Tie2015 general election20 Dec 201570.928.923.015.59.98.77.14.1–5.9

Valencian Community

Polling firm/CommissionerFieldwork dateSample sizeTurnoutLead2016 general election26 Jun 201672.435.425.420.815.010.0Sigma Dos/RTVE–FORTA26 Jun 2016??30.531.619.612.91.1GIPEyOP6–20 Jun 20165,701?33.829.719.116.24.1Sigma Dos/El Mundo9–16 Jun 2016??32.031.018.015.01.0DYM/El Confidencial14–15 Jun 2016???????NC Report/La Razón6–10 Jun 201692574.032.328.419.015.13.9Invest Group/Levante-EMV31 May–7 Jun 2016750?30.231.323.611.81.1SyM Consulting/Valencia Plaza2–5 Jun 20161,371?33.628.019.515.25.6CIS4–22 May 20161,306??????2015 general election20 Dec 201574.831.325.119.815.84.26.2

Constituencies A Coruña