Earth has a human population of over 8.2 billion as of 2025, with an overall population density of 50 people per km (130 per sq. mile). Nearly 60% of the world's population lives in Asia, with more than 2.8 billion in the countries of India and China combined. The percentage shares of China, India and rest of South Asia of the world population have remained at similar levels for the last few thousand years of recorded history.
The world's population is predominantly urban and suburban, and there has been significant migration toward cities and urban centers. The urban population jumped from 29% in 1950 to 55.3% in 2018. Interpolating from the United Nations prediction that the world will be 51.3% urban by 2010, Ron Wimberley, Libby Morris and Gregory Fulkerson estimated 23 May 2007 would have been the first time the urban population was more populous than the rural population in history. India and China are the most populous countries, as the birth rate has consistently dropped in wealthy countries and until recently remained high in poorer countries. Tokyo is the largest urban agglomeration in the world.
