does the majority of the world's population live in cities
Megacity In 1800, only 3% of the world's population lived in cities, a figure that rose to 47% by the end of the twentieth century. In 1950, there were 83 cities with populations exceeding one million; by 2007, this number had risen to 468.[24] The UN forecasts that today's urban population of 3.2 billion will rise to nearly 5 billion by 2030, when three out of five people will live in cities.[25] This increase will be most dramatic on the least-urbanized continents, Asia and Africa. Surveys and projections indicate that all urban growth over the next 25 years will be in developing countries.[26] One billion people, almost one-seventh of the world's population, now live in shanty towns.[27] In many poor countries overpopulated slums exhibit high rates of disease due to unsanitary conditions, malnutrition, and lack of basic health care.[28] By 2030, over 2 billion people in the world will be living in slums.[29] Over 90% of the urban population of Ethiopia, Malawi and Uganda, three of the world's most rural countries, already live in slums.
Demographics of China China is the most populated country in the world and its national population density (137/km2) is similar to those of Switzerland and the Czech Republic. The overall population density of China conceals major regional variations, the western and northern part have a few million people, while eastern half has about 1.3Â billion. The vast majority of China's population lives near the east in major cities.