A megacity is a city with an exceptionally large population, generally exceeding 10 million inhabitants. This term is commonly used to describe the world’s most populous urban centers.
According to the United Nations Department of Economic and Social Affairs, megacities are notable for their immense scale and complexity. They often face significant challenges, including urban planning, infrastructure, and social services, due to the sheer density of population.
Megacities require massive resources and coordination to maintain livability. Issues such as traffic congestion, pollution, housing shortages, and economic disparity are frequently more intense in these places.
"A megacity not only defines the concentration of people but also highlights the need for sustainable development and efficient management."
Most megacities are located in Asia, reflecting rapid urbanization trends in countries like China, India, and Japan. However, megacities also exist across other continents, influencing global economic and cultural dynamics.
Megacities are hubs of population over 10 million, posing unique challenges for governance, infrastructure, and sustainable growth in the rapidly urbanizing world.