“The share of the world’s population living in cities is steadily increasing. A majority of the world’s population has lived in an urban setting since 2007. This trend of urbanization will likely continue — an estimated two of every three people will be living in a city by 2050. To identify the largest cities in the world, 24/7 Wall St. reviewed The World’s Cities in 2016, a report from the United Nations that compared the world’s mega-cities — defined by the UN as having a population of at least 10 million people. The number of mega-cities has grown from 10 in 1990 to 31 in 2016, and another 10 cities are projected to reach mega-city status by 2030. The largest city in the world is currently Tokyo, Japan, home to approximately 38,140,000 residents.”