In less than a year, Jakarta has leapfrogged 32 other massive cities to reach No. 1 on the United Nations’ (UN) list of most populous cities. Did Indonesia’s capital have a supersized baby boom? Take in millions of refugees? Nope. The UN changed how it counts for its 2025 World Urbanization Prospect...

In less than a year, Jakarta has leapfrogged 32 other massive cities to reach No. 1 on the United Nations’ (UN) list of most populous cities. Did Indonesia’s capital have a supersized baby boom? Take in millions of refugees? Nope. The UN changed how it counts for its 2025 World Urbanization Prospect...