Special Report

30 Most Crowded Cities in the World

By 2050, 66% of the world’s population will live in urban areas. But what drives someone to leave a rural region to move to the big city? Most people choose to migrate for economic reasons, access to health care, technological advancements, and to be part of modern urban life.

But the dreams of a better life and the reality of migration don’t always align. Slums, traffic congestion, poor health, and overcrowding is usually the result of mass urbanization to cities that aren’t prepared to deal with a population influx. In fact, urbanization may be partially causing one city on this list to literally sink.

India, the most common country to make the list, has a population density of 171.9 people per square mile. In comparison, the United States’ population density is 13.5 people per square mile. Over 85% of this list consists of Asian cities.

While two European cities made the list — Paris and Barcelona — only one U.S. city did. Can you guess which one?

Click here to see the 30 most crowded cities in the world.
Click here to see our methodology.

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