| Participación | |||||||
|---|---|---|---|---|---|---|---|
| Censo de mesas | Primer avance | Segundo avance | |||||
| Comunidades | Total | Abiertas | 2015 | 2011 | 2015 | 2011 | |
| Andalucía | 6.369.114 | 6.369.114 | 100% | 32,29% | 36,84% | 45,98% | 48,77% |
| Aragón | 1.000.230 | 1.000.230 | 100% | 37,39% | 38,39% | 52,21% | 51,51% |
| Canarias | 1.564.336 | 1.564.336 | 100% | 26,60% | 28,14% | 43,17% | 44,83% |
| Cantabria | 470.109 | 470.109 | 100% | 38,47% | 39,40% | 56,18% | 57,24% |
| Castilla - La Mancha | 1.564.205 | 1.564.205 | 100% | 38,36% | 40,49% | 55,15% | 57,17% |
| Castilla y León | 2.022.408 | 2.022.408 | 100% | 36,08% | 38,08% | 53,13% | 54,47% |
| Catalunya | 5.376.162 | 5.376.162 | 100% | 32,17% | 29,24% | 44,66% | 38,24% |
| Ciudad de Ceuta | 59.399 | 59.399 | 100% | 23,53% | 26,55% | 37,37% | 38,85% |
| Ciudad de Melilla | 53.435 | 53.435 | 100% | 27,28% | 27,81% | 43,53% | 41,71% |
| Comunidad de Madrid | 4.702.282 | 4.702.282 | 100% | 34,64% | 34,48% | 52,15% | 50,06% |
| Comunidad Foral de Navarra | 476.924 | 476.924 | 100% | 40,66% | 39,04% | 55,64% | 53,39% |
| Comunitat Valenciana | 3.630.141 | 3.630.141 | 100% | 41,73% | 42,10% | 55,74% | 54,96% |
| Extremadura | 888.511 | 888.511 | 100% | 41,00% | 43,74% | 55,54% | 57,76% |
| Galicia | 2.284.739 | 2.284.739 | 100% | 33,28% | 34,89% | 50,97% | 49,62% |
| Illes Balears | 767.080 | 767.080 | 100% | 33,02% | 34,35% | 45,90% | 46,13% |
| La Rioja | 236.447 | 236.447 | 100% | 39,75% | 41,25% | 54,80% | 55,51% |
| País Vasco | 1.726.422 | 1.726.422 | 100% | 35,55% | 35,22% | 50,32% | 48,81% |
| Principado de Asturias | 884.179 | 884.179 | 100% | 33,71% | 35,01% | 49,26% | 51,27% |
| Región de Murcia | 1.016.235 | 1.016.235 | 100% | 36,36% | 38,91% | 50,72% | 52,06% |
| Total Estatal | 35.092.358 | 35.092.358 | 100% | 34,78% | 35,81% | 49,80% | 49,19% |
