Population Estimates. S2/2026. Provisional data. Advance

The population of Catalonia as of1 July 2026 stood at 8,237,683 inhabitants, representing an increase of 26,973 people during the first half of the year, according to provisional data. In year-over-year terms, compared to 1 July 2025, the growth was 83,056 inhabitants (1.0%).

By large age groups, during the first six months of 2026, the group aged 0 to 15 decreased (−12,890 people). Conversely, increases were registered in the population aged 16 to 64 (24,425) and that aged 65 and over (15,438). Compared to a year earlier and in relative terms, the population aged 0 to 15 fell by 1.8%, while the population aged 16 to 64 rose by 1.3% and that aged 65 and over did so by 2.2%

By provinces, the population increased in all four during the first half of 2026. Compared to a year earlier, and in relative terms, the largest increases were recorded in Tarragona and Lleida, with year-over-year growth rates of 1.6% and 1.4%, respectively. In Barcelona, growth was 1.0%, while in Girona it was 0.5%.