UN Report: Jakarta Now World's Most Populous City

• Indonesia's capital, Jakarta, is now the world's most populous city with nearly 42 million residents, according to a new UN report.
• Jakarta surpassed Dhaka and Tokyo, with Dhaka projected to become the largest city by mid-century.
• The World Urbanization Prospects 2025 report highlights Asia's dominance, with 9 of the top 10 most populated cities located on the continent.
• Jakarta faces significant challenges including overcrowding, pollution, and sinking, leading to a planned but delayed capital relocation to Nusantara.

Why It Matters: Jakarta's top rank reveals urgent global urbanization challenges and future policy demands.