The recent evolution of first languages in Catalonia

The case of Catalonia has often been pointed out as a case of success in the field of language policy, based on the improvement in its legal situation, the increase in the number of people who know it, and the extension of its use in certain fields. To contribute to a complete evaluation of the current language policy model in Catalonia, this article assesses the evolution of the first languages of the population over the last fifteen years. The study shows that during this period, despite some oscillations, Catalan has remained in stable numbers of L1 speakers in absolute terms, thanks essentially to very strong patterns of intergenerational transmission in both linguistically homogeneous and mixed couples. However, significant immigration during this period has substantially increased the weight of other languages and, to a lesser degree, Castilian, so that in relative terms Catalan has been reduced as a first language between 2003 and 2018.