Population of Africa 2021, by age group
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In 2021, there were around 207 million children aged 0-4 years in Africa. In total, the population aged 17 years and younger amounted to approximately 650 million. In contrast, only approximately 48 million individuals were aged 65 years and older as of the same year.
The youngest continent in the world
Africa is the continent with the youngest population worldwide. As of 2023, around 40 percent of the population was aged 15 years and younger, compared to a global average of 25 percent. Although the median age on the continent has been increasing annually, it remains low at around 20 years. There are several reasons behind the low median age. One factor is the low life expectancy at birth: On average, the male and female population in Africa live between 61 and 65 years, respectively. In addition, poor healthcare on the continent leads to high mortality, also among children and newborns, while the high fertility rate contributes to lowering the median age.
Cross-country demographic differences
Africa’s demographic characteristics are not uniform across the continent. The age structure of the population differs significantly from one country to another. For instance, Niger and Uganda have the lowest median age in Africa, at 15.1 and 16.1 years, respectively. Not surprisingly, these countries also register a high crude birth rate. On the other hand, North Africa is the region recording the highest life expectancy at birth, with Algeria leading the ranking in 2023.
