Overview

• Barcelona’s population reached 1,732,066 on January 1, 2025, marking its highest level in four decades.
• Only 45% of residents were born in Barcelona, and in Ciutat Vella that share falls to 23%.
• Foreign-born residents total 612,529, or 35.4% of the population, underpinned by a net migratory gain of 46,240.
• Children under 16 account for just 11.9% of inhabitants—the lowest proportion since 1900—and those aged 65 and over represent 20.8%.
• Centenarians in the city rose to 1,104, highlighting the broader trend toward an aging population.