By 2100, the world's population is predicted to reach 11 billion.

The United Nations (UN) predicts that the world's population in 2017 was 7.6 billion and will reach 8.6 billion in 2030. It is then projected to increase to 9.8 billion in 2050 and further to 11.18 billion by 2100. These figures are based on an estimate of medium fertility growth, with an annual population increase of approximately 83 million.

China and India remain the world's most populous countries, with populations of 1.4 billion and 1.3 billion, respectively. These two countries contribute 19% and 18% to the world's population, respectively. However, within the next six years, by 2024, India's population is expected to reach 1.438 billion, surpassing China's population of 1.436 billion. From 2017 to 2050, it is estimated that half of the world's population growth will be concentrated in nine countries: India, Nigeria, Congo, Pakistan, Ethiopia, Tanzania, the United States, Uganda, and Indonesia.

By 2100, Asia's population is projected to reach 4.78 billion, remaining the largest in the world. Africa will have a population of 4.47 billion, Europe 653.26 million, the Americas and the Caribbean 1.21 billion, and the Asia-Pacific region (Oceania) 71.82 million.