Spain. European Constitution Referendum 2005
By Alex Kireev
| YES | NO | |
| Total | 76.96% | 17.07% |
| Álava/Araba | 66.37% | 29.45% |
| Albacete | 84.01% | 10.19% |
| Alicante/Alacant | 79.53% | 14.53% |
| Almería | 86.21% | 9.32% |
| Asturias/Asturies | 76.42% | 19.38% |
| Ávila | 81.14% | 12.15% |
| Badajoz | 84.85% | 9.55% |
| Barcelona | 65.64% | 27.28% |
| Burgos | 80.25% | 13.13% |
| Cáceres | 85.78% | 9.02% |
| Cádiz | 82.55% | 12.41% |
| Cantabria | 79.45% | 14.41% |
| Castellón/Castelló | 78.00% | 15.38% |
| Ciudad Real | 83.87% | 10.16% |
| Córdoba | 82.05% | 12.18% |
| A Coruña | 81.51% | 12.09% |
| Cuenca | 84.51% | 9.22% |
| Girona | 58.81% | 33.25% |
| Granada | 83.61% | 11.61% |
| Guadalajara | 77.16% | 15.86% |
| Guipúzcoa/Gipuzkoa | 56.46% | 40.39% |
| Huelva | 85.61% | 9.38% |
| Huesca | 81.23% | 12.12% |
| Illes Balears (Balearic Islands) | 77.69% | 15.98% |
| Jaén | 85.60% | 10.02% |
| La Rioja | 82.37% | 11.94% |
| León | 84.64% | 10.03% |
| Lleida | 62.04% | 10.13% |
| Lugo | 83.12% | 10.44% |
| Madrid | 74.11% | 19.27% |
| Málaga | 83.28% | 11.78% |
| Murcia | 81.83% | 12.87% |
| Navarra/Nafarroa (Navarre) | 65.60% | 28.94% |
| Ourense | 85.99% | 8.95% |
| Palencia | 79.24% | 13.96% |
| Las Palmas | 84.03% | 11.77% |
| Pontevedra | 80.94% | 12.92% |
| Salamanca | 82.00% | 11.70% |
| Tenerife | 88.53% | 7.90% |
| Segovia | 81.99% | 10.92% |
| Sevilla (Seville) | 81.87% | 12.60% |
| Soria | 84.78% | 10.36% |
| Tarragona | 65.76% | 27.28% |
| Teruel | 84.07% | 9.75% |
| Toledo | 79.78% | 13.72% |
| Valencia/València | 76.04% | 17.72% |
| Valladolid | 76.53% | 16.52% |
| Vizcaya/Bizkaia (Biscay) | 65.56% | 30.53% |
| Zamora | 84.36% | 10.10% |
| Zaragoza | 80.43% | 13.42% |
| Ceuta | 81.48% | 13.42% |
| Melilla | 84.59% | 11.96% |
