Barcelona’s metropolitan area, home to 3.5 million people across the capital and 35 surrounding municipalities, is undergoing impressive demographic and economic shifts. Average income and employment rates have improved, but the latest figures from the Institut Metròpoli show persistent inequalities between neighborhoods and population groups, with some growing worse.
The annual report 'El AMB en cifras 2026. La Metrópoli en 100 indicadores' shows that the region’s share of Catalonia’s population has fallen from 47% to 42% over the past two decades, despite overall progress. The area is also aging rapidly: there are now 160 residents over 65 for every 100 under 15, compared with 131 two decades ago. Meanwhile, the foreign-born population has grown sharply, now accounting for 21.3% of residents, up from 3.5% in 2000. Over the past three years alone, 150,000 new foreign residents have arrived each year. Catalonia-wide figures offer broader demographic context: the Institut d’Estadística de Catalunya (Idescat) recorded 8,124,126 residents in 2025, including 2,039,015 people born abroad, or about 25.1% of the population. Idescat classifies this population by place of birth, not nationality. Its regional figure also covers a different area and reference frame from the metropolitan share.
Income disparities remain stark. Average annual income per consumption unit in the metropolitan area rose from €19,987 in 2016 to €26,864 in 2024. That average conceals deep divides: Barcelona city is above the mean at €28,493, while affluent municipalities such as Sant Cugat del Vallès and Sant Just Desvern approach €40,000. By contrast, Santa Coloma de Gramenet and Badia del Vallès fall below €19,000. The Besòs river corridor is particularly affected: six of the nine municipalities with high vulnerability are located there.
Child poverty is a growing concern, affecting 31% of minors, up from 26% a decade ago. The risk of poverty among migrants has reached 40%, while severe poverty affects nearly 10% of the population. Inflation in food and utilities, along with rising housing costs, has hit the lowest-income households hardest and deepened their vulnerability.
Housing trends have shifted notably. In Barcelona, the share of renters climbed from 38.2% in 2017 to 43.6% in 2024, while homeownership fell. Affordability has worsened alongside that shift: nearly 30% of renters now spend over 40% of their income on rent. The director of Institut Metròpoli says housing, more than the labor market, has become the basic driver of inequality, as wealth increasingly moves from low-income tenants to affluent property owners.
More residents are also being forced to move for economic reasons: the share rose from 6% to 24% over two decades. Demand for public housing is surging. In 2025, 48,549 people were registered in Barcelona, up 17% from the previous year, while the wider metropolitan area had 31,825 registrants, a 24% increase.
Environmental indicators show some progress. Over the last decade, nitrogen dioxide levels fell by 37%, while PM10 particles dropped by 13%, mainly because of a modernized vehicle fleet. Current pollution levels, but, still exceed the EU’s 2030 targets and World Health Organization recommendations. Waste generation per capita has fallen 18% over 20 years, and recycling rates have doubled to 40%, still below the Catalan average of 56%. Water consumption has decreased by 25%.
Mobility patterns remain stable: 75% of daily trips are made by walking or cycling, while public transport accounts for part of that share; private cars account for 24%. Hybrid and electric vehicles now make up over half of new registrations, up sharply from just 1.5% in 2015.
The findings arrive as pressure grows on the region to tackle entrenched inequalities. Barcelona city can redistribute resources thanks to its strong fiscal base, but many surrounding municipalities lack the means to address disparities on their own. Experts say coordinated metropolitan or Catalan-level policies are needed to target the most vulnerable zones effectively.
Recent extreme weather has also tested the region’s ability to recover. For example, violent storms in southern Valencia have highlighted the need for strong infrastructure and social support, concerns that are increasingly relevant as Barcelona’s metropolitan area continues to evolve.
Barcelona’s change reflects broader trends in major European cities: diversity and prosperity are growing, while divides are sharpening. Policymakers face the challenge of ensuring future growth benefits all residents, not only those in the most privileged neighborhoods.
