| • Science | • People | • Locations | • Timeline |
| 1 | Castile-Leon | 94 223 kmē | 18,6% |
| 2 | Andalusia | 87 268 kmē | 17,2% |
| 3 | Castile-La Mancha | 79 463 kmē | 15,7% |
| 4 | Aragon | 47 719 kmē | 9,4% |
| 5 | Extremadura | 41 634 kmē | 8,2% |
| 6 | Catalonia | 32 114 kmē | 6,3% |
| 7 | Galicia | 29 574 kmē | 5,8% |
| 8 | Valencia | 23 255 kmē | 4,6% |
| 9 | Murcia | 11 313 kmē | 2,2% |
| 10 | Asturias | 10 604 kmē | 2,1% |
| 11 | Navarre | 10 391 kmē | 2,1% |
| 12 | Madrid | 8 028 kmē | 1,6% |
| 13 | Canary Islands | 7 447 kmē | 1,5% |
| 14 | Basque Country | 7 234 kmē | 1,4% |
| 15 | Cantabria | 5 321 kmē | 1,0% |
| 16 | La Rioja | 5 045 kmē | 1,0% |
| 17 | Balearic Islands | 4 992 kmē | 1,0% |
| | Spanish possessions in North Africa | 33 kmē | 0,01% |
| TOTAL | 505 988 kmē | 100% | |