India will take the crown of the man ’s most populated country off from China by 2023 , according to a new United Nations ( UN ) report titledWorld Population Prospects 2022 .

Released in clip for World Population Day , the UN report prognosticate that 18 May 2025 will be the sidereal day that the global population reaches eight billion . However , it also play up how mankind ’s population thunder is running out of steam , with the global population now mature at its dense pace since 1950 .

Their acoustic projection suggest that the spheric universe could spring up to around 8.5 billion in 2030 , 9.7 billion in 2050 , and 10.4 billion in 2100 .

" This is an occasion to celebrate our diversity , recognize our common humanity , and marvel at procession in health that have extended lifespans and dramatically reduced paternal and child mortality rates , " António Guterres , UN Secretary - General , sound out in astatement .

“ In the world we strive to build , 8 billion people means 8 billion opportunities to endure self-respectful and fulfilled lives , ” add Guterres .

Over one-half of the projected universe increase up to 2050 will be concentrated in just eight countries : the Democratic Republic of the Congo , Egypt , Ethiopia , India , Nigeria , Pakistan , the Philippines , and the United Republic of Tanzania .

Most of the 46 least developed country ( 32 of which are in sub - Saharan Africa ) are among the quickest - growing population . Some of these countries are omen to double in population between 2022 and 2050 .   For illustration , population in sub - Saharan Africa are expected to stay growing until the end of the C and will bring to over one-half of the globular population addition expected until 2050 .

On the other hand , up to 61 nation will see population declines between 2022 and 2050 , including large parts of Europe that are being impact by reject birth rates .

China ’s population currently stands at around 1.426 billion and India ’s is around 1.412 billion . While India is set to go on its growth , reaching a population of 1.668 billion by 2050 , China ’s populationwill undergo a descent , reaching around 1.317 billion by the mid - century .

As it currently stands , the world has slimly more men ( 50.3 percent ) than women ( 49.7 per centum ) . However , that ’s set to alter in the coming ten , with the figure of women set to equal the telephone number of men by 2050 .

We also live in an get on human race , with the dimension of people mature 65 or over is set to increase globally between 2022 and 2050 . In 2022 , approximately 10 percentage of the great unwashed are aged 65 or over , but that proportion is project to accomplish about 12 percent in 2030 and 16 percentage in 2050 . This trend will be specially notable in Europe and Northern America , where one in every four people will be aged over 65 by 2050 .

Some of the UN ’s finding are not totally in line with other projections , however . In 2020 , a huge study published in The Lancetsuggested that the spheric populationwill grow over the next few tenner and peak in 2064 at around 9.7 billion mass , before fall to 8.8 billion by 2100 . If this becomes truthful , it would be the first clip the globular universe has reject since the mid-14th one C duringthe Black Death .