As in the rest of Portugal, Alentejo is experiencing population ageing and low in-migration due to the preference of nationals and migrants for coastal areas. Alentejo is Portugal’s TL2 region with the highest share of elderly in the population (26% of +65) and lowest share of foreign‑born population (4%). These forces, which have been gradually sustained over the past 50 years, have contributed to increase the ageing gap in Alentejo with respect to other Portuguese regions, and have contributed to economic and social decline in some municipalities. Indeed, more than half of the municipalities of the region have experienced sustained and strong population decline in recent decades. According to preliminary 2021 census data, Alentejo’s population shrank at an annual rate of 0.72% on average between 2011 and 2021, four times faster than the national average (0.17%).
Moreover, projections from the Portuguese National Statistics Institute (INE) foresee a further 30% drop in Alentejo’s population between 2020 and 2080. This trend will particularly affect the more remote areas of the region – which already have an elderly dependency ratio 10 percentage points higher than in other regions in Portugal. The four most remote TL3 regions in Alentejo are projected to shrink about three times faster in 2011-2035 (0.8% annually) compared to the TL3 region close to a small/medium city (0.27% annually). In addition, by 2035, only three municipalities are projected to grow, while 14 will sustain annual population decreases of 1% on average over 2011-2035.
These demographic developments have and will continue to lower the demand for education services in some areas and increase it for health care services. This will require adapting the provision of local public services in the region and building on efficiency gains across levels of government. Moreover, as demand recedes, municipal governments and parishes, mandated to provide equal access to all residents, will face higher costs from the lack of economies of scale and larger distances between settlements.