Overview

• Catalonia’s population is projected to rise from 8.0 million in 2024 to 8.554 million by 2034, a 6.8% increase fueled by net immigration.
• Natural change is expected to be negative in most municipalities as deaths outpace births, reflecting the region’s low fertility.
• The number of residents aged 65 or older will grow by 24.4%, with those aged 80 and above increasing by 29.6%, reshaping social and economic demands.
• Idescat forecasts 791 of Catalonia’s 947 municipalities will gain population by 2034, nine will remain stable, and 147 will lose residents.
• Growth leaders include Vilablareix (+35.2%) and Sant Feliu de Pallerols (+33.2%), and the steepest declines hit La Febró (–16.7%), La Torre de Fontaubella (–14.3%) and Badia del Vallès (–3.1% among towns over 5,000 residents).