This is an update of a similar post from 2015. The UN projections have changed but only by small numbers. The main observations are the same as six years ago (click table to enlarge in a new tab).
The working age population (WAP, those aged 15 to 64) of sub-Saharan Africa continues to grow rapidly. It has more than doubled since 1990 from 252 million to 609 million, and is expected to more than double again by 2050 to 1.3 billion. If the reality turns out to be anywhere near these projections, it will be a significant challenge for African economies to absorb and to employ productively this enormous amount of new human energy.
India faces a similar challenge with its WAP growing from 928 million now to 1.1 billion in 2050. Though daunting, this represents a slowdown in the rate of growth from the previous thirty-year span 1990-2020.
The WAP of Europe, China and Japan have already peaked and will be declining for the rest of the century, per UN projections. Europe’s decline from near 500 million in 2005 to a projected 407 million by 2050 is mainly due to eastern and southern Europe. The WAP of France and the United Kingdom will flatline to 2050 while those of Germany and Russia decline.
In the United States, the steady growth in the WAP between 1960 and 2005 combined with a falling dependency ratio to fuel strong economic conditions. Growth in the WAP is expected to be more muted in the decades ahead.
Compared to the late 20th century and the first decades of this century, the future growth in the WAP will taper off or even turn negative in several regions and countries. Sub-Saharan Africa stands out as the exception that will maintain strong WAP momentum through at least 2050.