According to new demographic data from the City Council, Barcelona population projections 2044 indicate the city will become both more populous and significantly older over the next two decades. The latest forecasts suggest a 4% growth by 2044, approaching 1.77 million inhabitants. However, the composition of its residents will shift dramatically.
The report, based on municipal register data and growth scenarios from the Statistical Institute of Catalonia (Idescat), paints a clear picture. Consequently, the city will rely entirely on migration to offset a declining natural birth rate.
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Home » Barcelona Population Projections: City to Grow but Age Significantly by 2044
Migration drives growth as birth rates stall
Under the medium-growth scenario, Barcelona is expected to reach 1,771,464 residents by 2044. A more optimistic upper-range forecast suggests the figure could climb as high as 1.85 million (an 8.9% increase). Meanwhile, a pessimistic model predicts a potential drop to 1.66 million.
The primary driver for the expected growth is a positive migratory balance. Simply put, more people are moving to Barcelona than are leaving. This migration compensates for the city’s negative natural balance, where deaths consistently outnumber births. In 2024 alone, the city recorded 14,680 deaths against just 11,091 births.
A greying workforce: Key Barcelona population projections
While the total headcount is rising, the age profile of the city is changing rapidly. The report highlights an inevitable demographic ageing process:
- Retirees on the rise: The population aged 65 and over is projected to surge by 21.5%.
- Shrinking workforce: The working-age demographic is expected to contract by 1.3%.
- Centenarians: By 2044, the city will be home to over 1,300 people aged 100 or older, with women outnumbering men by nearly four to one (1,045 women versus 275 men).
While there is a predicted slight uptick in the 0–16 age group, the reduction in active workers poses long-term challenges. Therefore, the city’s economic planning and social services must adapt.
Uneven growth across districts
The projected growth will not be felt evenly across the capital. Ciutat Vella is forecast to experience the most explosive growth, with a predicted population increase of 24.9%. By contrast, Les Corts is the only district expected to shrink, with a projected 2% decline in residents.
The Eixample and Sant Martí districts will remain the most populous areas of the city. Interestingly, demographic shifts mean that by 2035, Ciutat Vella is expected to overtake Gràcia in total population size.
Political implications for 2027
The demographic bounce-back has immediate political consequences. In 2025, Barcelona reached a 40-year population high of 1,732,066 inhabitants, recovering fully from the pandemic-era dip. This recent surge added nearly 30,000 new residents in a single year, mostly due to international migration.
If these figures consolidate in the 2026 official register, the Barcelona City Council will be legally required to expand. Under Spanish electoral law (LOREG), the council would gain two seats in the 2027 municipal elections, moving from 41 to 43 councillors. This would return the chamber to the size it held in 1979, when the city’s population was nearing two million, exacerbating existing housing market pressures. For further context on demographic analysis, you can review methodologies from authoritative sources like the Spanish National Statistics Institute (INE).
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