For many years, Tokyo held the title of the world's largest city by population. However, recent United Nations data reveals a new leader on the global stage.
The megacity of Mumbai, India, now boasts a population of 42 million people, eclipsing Tokyo in size. This marks a significant change in urban demographics and growth trends worldwide.
Mumbai’s rise underscores rapid urbanization trends, especially in emerging economies. As populations grow and cities expand, megacities like Mumbai are becoming focal points of economic activity, social diversity, and infrastructure challenges.
“Tokyo is no longer in first place as the world’s biggest city,” the UN report stated, highlighting Mumbai’s growth.
Such demographic shifts signal the need for adaptive urban planning and policies focusing on sustainability, housing, and transportation to manage growing populations effectively in these vast megacities.
Mumbai's population growth overtaking Tokyo reflects global urbanization dynamics and the critical need to address the challenges facing the world's largest cities.