Languages: Castilian Spanish (official nationwide) 74%, Catalan (official in Catalonia, the Balearic Islands, and the Valencian Community (where it is known as Valencian)) 17%, Galician (official in Galicia) 7%, Basque (official in the Basque Country and in the Basque-speaking area of Navarre) 2%, Aranese (official in the northwest corner of Catalonia (Vall d'Aran) along with Catalan, <5,000 speakers); note - Aragonese, Aranese Asturian, Basque, Calo, Catalan, Galician, and Valencian are recognized as regional languages under the European Charter for Regional or Minority Languages
major-language sample(s):
La Libreta Informativa del Mundo, la fuente indispensable de información básica. (Spanish)
The World Factbook, the indispensable source for basic information.
Source: The World Factbook