Is there a language other than Spanish spoken in Spain?
Languages of Spain
In terms of the number of speakers and dominance, the most prominent of the languages of Spain is Spanish (Castilian), spoken by about 99% of Spaniards as a first or second language.[5] Catalan (or Valencian) is spoken by 19%, Galician by 5%, and Basque by 2% of the population.[6]
Autonomous communities of Spain
Article 3 of the constitution ends up declaring that the "richness of the distinct linguistic modalities of Spain represents a patrimony which will be the object of special respect and protection". Spanish remains the only official language of the state; other languages are only co-official with Spanish in the communities that have so regulated. In addition, knowledge of the Spanish language was declared a right and an obligation of all Spaniards.