Countries across the world have been going through an important demographic transition: from young to increasingly ageing populations.
In 2018 the number of people older than 64 years old surpassed the number of children under 5 years old. This was the first time in history this was the case.1 We can see this transition clearly when we look at the population by age bracket in the chart below – this is shown from 1950 onwards, with UN projections to 2100.
In the chart below you can explore the projected age structure of future populations – for any country or world region. Just click on Change Country in the bottom left.