| Population of 2001: Percentage | ||
| 0 | NATIONAL TOTAL | .. |
| 1 | Madrid | |
| 2 | Barcelona | |
| 3 | Valencia | |
| 4 | Sevilla | |
| 5 | Alicante/Alacant | |
| 6 | Málaga | |
| 7 | Murcia | |
| 8 | Vizcaya | |
| 9 | Cádiz | |
| 10 | Coruña (A) | |
| 11 | Asturias | |
| 12 | Pontevedra | |
| 13 | Palmas (Las) | |
| 14 | Zaragoza | |
| 15 | Illes Balears | |
| 16 | Granada | |
| 17 | Santa Cruz de Tenerife | |
| 18 | Córdoba | |
| 19 | Guipúzcoa | |
| 20 | Badajoz | |
| 21 | Jaén | |
| 22 | Tarragona | |
| 23 | Girona | |
| 24 | Navarra | |
| 25 | Toledo | |
| 26 | Almería | |
| 27 | Cantabria | |
| 28 | Valladolid | |
| 29 | León | |
| 30 | Castellón/Castelló | |
| 31 | Ciudad Real | |
| 32 | Huelva | |
| 33 | Cáceres | |
| 34 | Albacete | |
| 35 | Lleida | |
| 36 | Lugo | |
| 37 | Burgos | |
| 38 | Salamanca | |
| 39 | Ourense | |
| 40 | Álava | |
| 41 | Rioja (La) | |
| 42 | Huesca | |
| 43 | Cuenca | |
| 44 | Zamora | |
| 45 | Guadalajara | |
| 46 | Palencia | |
| 47 | Ávila | |
| 48 | Segovia | |
| 49 | Teruel | |
| 50 | Soria | |
| 51 | Ceuta | |
| 52 | Melilla |