A changing demographic landscape
Barcelona, one of the most iconic cities in Europe, is facing a new chapter in its demographic history. According to the latest municipal register published by the City Council, the registered population has reached 1,729,963 inhabitants at the beginning of 2026, representing a slight decrease of 0.1% compared to the previous year. However, this figure hides a series of records that reflect the social and cultural complexity of the city.
One of the most concerning aspects is the number of births, which has fallen to its lowest level since 1900, with only 11,012 registrations during 2025. This phenomenon not only affects family structure but also raises questions about the future of the education system and social policies in Barcelona.
Despite the decline in birth rates, the city has seen a significant increase in its foreign population. With 460,409 foreign residents, Barcelona has become a true cultural melting pot where people from 182 different nationalities coexist. This growth is primarily driven by immigrants from Latin America and other regions of the world.
As the number of households with children under 16 years old decreases —now representing just 21.4% of the total— there is a notable increase in single-person households. In fact, nearly a third (31.5%) of Barcelona's households are occupied by a single person, with women being the most represented among these solitary residents.
The growing number of centenarians in Barcelona also draws attention; there are currently 1,196, reflecting not only medical advances but also significant social changes. The majority are women (82%), highlighting the biological and social differences present in longevity.
Despite the challenging landscape presented by the decline in native birth rates —where less than 55% are born in Barcelona— there is good news related to educational levels: 37.4% of those over 16 have higher education; this figure rises to 42.7% among the foreign population.
As immigration and administrative policies intensify to regularise new residents, Barcelona could see significant changes in its population composition. The constant arrival of young immigrants could be key to revitalising economic sectors and contributing to social well-being.
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