In short:
Asia is home to nine of the world’s 10 most populous cities in 2025, according to the United Nations.
A new report identifies Jakarta, with 42 million residents, as having the largest population globally.
Tokyo had long held the title as the world’s largest city, but its population growth has stagnated.



With Japan’s population losing almost a million a year, Tokyo is not likely to regain the title.
Tokyo’s (and other major Japanese cities) population are predicted to continue growing. The rest of the country is depopulating.