97% of population growth is in developing countries – mostly in sub-Saharan Africa.
However Uttar Pradesh in India has a population of over 200 million and if it were a country it would be the 5th biggest in the world.
Qatar is the fastest growing country and Moldova’s population is shrinking the most.
And here the UK is set to have the biggest population in the EU by 2043. The UK is currently the third biggest behind Germany and France but is less than two-thirds the size of Germany and half the size of France.
The UK will overtake France in 2031 and Germany in 2043 when we will have a population of almost 75 million, nearly 25% higher than at present. Two-thirds of our population increase will be due to immigration and increased births amongst immigrant mothers. The remainder by other births and people living longer.
A BBC interactive feature enables you to see where you personally fit into this and lets you calculate what your number is. For example I’m the two and a half billionth person alive on earth and around the 75 billionth who has ever existed! Check yourself here.
And if you want to understand how population has grown from 1 billion in 1804, doubling by 1927 and now growing at the rate of 200,000 a day, watch this video, also from the BBC.