In 1990, the year Portugal ratified the Convention on the Rights of the Child, the number of children (aged 0 to 17) was 2,511,856, representing 25.2% of the country's resident population; in 2023, this figure was 1,675,610 (836,246 fewer children than in 1990), representing 15.7%
In 2023, the proportion of children in the total resident population (15.7%) was higher than the national value in 85 of the 308 municipalities in the country, mainly concentrated in Grande Lisboa, Península de Setúbal, Algarve and Região Autónoma dos Açores
Ribeira Grande, in the Região Autónoma dos Açores, stood out as the municipality with the highest weight of children (22.2%), followed by Lagoa, also in the Região Autónoma dos Açores (19.7%), and Montijo (19.5%), in the
Península de Setúbal 217 municipalities had a proportion of children below the national value, especially the municipalities of Oleiros (7.7%) and Almeida (7.9%), both in the Centro region
In 1990, on average, a woman had 1.57 children; and in 2023, 1.44 children.
In 2024, the number of live births born to mothers residing in Portugal was 84,642, 31,679 (-27.2%) less live births than in 1990.
In 1990, the mean age of women at birth of their first child was 24.9 years, and in 2023 it was 30.2 years.
The reduction of children in the resident population is visible in the narrowing of the base of the age pyramid from 1990 to 2023.
Due to the decrease in birth rates, and in the enlargement of the top, with the increase in the proportion of elderly people, given the increase in life expectancy.
It is projected that by 2080, the number of children will decrease to 1,221,379 (14.9%)
The total population of Portugal stood at 10.67 million people in 2023.
This statistic shows the age structure in Portugal from 2013 to 2023.
In 2023, about 12.89 percent of Portugal's total population was aged 0 to 14 years.