The World Population Prospects 2019: Highlights, estimates that the next 30 years will see the global population add an extra 2 billion people to today's figure of 7.7 billion, and, by the end of ...

The estimates are based on 1,059 unique data sources from 196 countries or areas, representing approximately 98 per cent of the world’s population in 2022, with reference dates ranging from 1960 ...