The Global Cities Institute at the University of Toronto has done research and listed the projected top 10 world cities in 2050 by population. There are 5 cities already in the top ten currently according to macrotrends. They are Mexico City, Tokyo, Dhaka, Delhi, and Mumbai.
Macrotrend’s 2020 list says that the most populated city in the world is Tokyo. The other 5 cities on its 2020 list–Beijing, Osaka, Cairo, Sao Paulo, and Shanghai–will be off the list by 2050 if Global Cities is right. The 2050 Global Cities list contains some surprises and perhaps an error or two. Time will tell.
According to the Global Cities Institute, the five cities that will be added by 2050 include New York, Karachi, Lagos, Kolkata, and Kinshasa; and the largest city in the world by population will briefly be Mumbai, India. Their calculations didn’t and couldn’t take into consideration the effects of COVID19 on population or the demographic changes that might reduce the populations of cities like New York and Mexico City.
If they are correct, the Global Cities Institute sees big growth in the cities of Asia and Africa. Six of 2050’s top 10 cities will be in Asia with the addition of Karachi in Pakistan and Calcutta (Kolkata) in India, and 2 of the top ten cities in the world will be in Africa with the addition of Lagos, Nigeria, and Kinshasa, Democratic Republic of the Congo, to the list.