Spain
As a percentage of the general population of all Spain, Spanish is natively spoken by 74%, Catalan by 17%, Galician by 7% and Basque by 2% of all Spaniards. Occitan is spoken by less than 5,000 people, only in the small region of "Val d'Aran".
Other Romance minority languages, though not official, have special recognition, such as the Astur-Leonese language ("asturianu", "bable" or "llionés") and Aragonese ("aragonés") in Aragon.
Castilian Spanish
The term "Castilian Spanish" can be used in English for the specific varieties of Spanish spoken in north and central Spain. Sometimes it is more loosely used to denote the Spanish spoken in all of Spain as compared to Spanish spoken in Latin America. There are several different varieties of Spanish, which should not be confused with the other official and non-official languages in Spain, of which Castilian is only the most prominent because it is the only one that is official throughout the whole national territory.