The most common age nationwide is 49 years, corresponding to those born in the mid-1970s. Shutterstock: Mike Workman/Shutterstock
As of January 1 this year, there were 838,721 people aged 49, representing 1.7% of Spain’s total population of 49,570,725. This makes 49 the statistical mode, meaning it is the single age most frequently found among residents. Twelve of Spain’s seventeen autonomous communities share this most common age. These include Andalucía, Asturias, Balearic Islands, Cantabria, Castilla-La Mancha, Cataluña, Valencian Community, Galicia, Madrid, Navarra, Basque Country, and La Rioja.
The prevalence of 49 years as the mode reflects a generation born during the mid-1970s, a period of steady birth rates following the post-Franco era. These residents now form a substantial portion of Spain’s working-age population, influencing labour markets and urban demographics.
Depopulated regions and ageing
In provinces affected by long-term depopulation, the most common age is notably higher. Castilla y León and Extremadura report a mode of 61 years, while Zamora province reaches 62 and 63 years, the highest nationwide.
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These figures highlight the consequences of rural depopulation, with younger generations relocating to urban centres for education and employment opportunities. The ageing populations remaining in smaller towns result in a higher median and modal age, creating social and economic challenges for these communities.
Provincial differences
Provincial data reveal a variety of age distributions. Twelve provinces, including Ávila, León, Palencia, Salamanca, Segovia, Soria, Cáceres, Badajoz, Ciudad Real, Cuenca, Córdoba, and Jaén, report a mode of 61 years.
Other provinces differ significantly: Teruel (58 years), Las Palmas (53), Santa Cruz de Tenerife (52), Barcelona and Zaragoza (50), Almería, Huesca, Sevilla, Tarragona, and Valencia (48), Girona, Granada, and Murcia (47), and Melilla (11 years). These variations demonstrate the uneven distribution of age across Spain, shaped by migration, economic opportunities, and local birth rates.
The most common age does not always align with years of peak births. Spain’s highest birth year was 1964, with 697,697 children, followed by 1974 with 688,711 births. In depopulated provinces, however, the older age mode aligns with post-war generations, illustrating the compounded effect of emigration from rural areas and lower birth rates over decades.
Implications for rural Spain
The concentration of older residents in depopulated areas presents multiple challenges. Shrinking workforces in these regions affect local economies, and demand for healthcare, social services, and elderly support rises. Schools, public transport, and cultural infrastructure may face underuse or closure, further reducing the quality of life in small towns.
Government initiatives, including relocation incentives, tax benefits, and employment programmes, aim to revitalise rural areas. Nevertheless, demographic data indicate that ageing and depopulation remain persistent structural issues requiring long-term planning and policy intervention.
Wider social impact
This demographic divide affects not only rural communities but also urban areas, as cities absorb younger populations. The movement of residents influences housing markets, labour availability, and public services in urban centres. Policymakers must balance resources between growing cities and ageing villages, ensuring equitable access to services for all residents.
Spain’s demographic landscape is marked by a clear urban-rural divide. While the most common age nationwide is 49, depopulated provinces display pronounced ageing, with the most frequent age rising to 63 in some areas.
These findings, based on the latest data from the Instituto Nacional de Estadística (INE), highlight the effects of migration, declining birth rates, and rural depopulation. They provide critical insight into how population distribution will influence Spain’s social, economic, and policy priorities for decades to come.