Community of Madrid: 819 inhabitants per km²
Catalonia: 237 inhabitants per km²
Valencian Community: 213 inhabitants per km²
Basque Country: 304 inhabitants per km²
Ceuta: 4257 inhabitants per km²
Melilla: 6639 inhabitants per km²
Balearic Islands: 226 inhabitants per km²
Canary Islands: 286 inhabitants per km²
Andalucía: 96 inhabitants per km²
Region of Murcia: 131 inhabitants per km²
Galicia: 91 inhabitants per km²
Principality of Asturias: 97 inhabitants per km²
Cantabria: 109 inhabitants per km²
La Rioja: 62 inhabitants per km²
Navarra: 62 inhabitants per km²
Castilla Y León: 26 inhabitants per km²
Aragón: 27 inhabitants per km²
Extremadura: 26 inhabitants per km²
Castilla-La Mancha: 25 inhabitants per km²