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World's largest cities
List of the world's largest cities by population. Half of the world population live in cities - in 1900 one in ten people lived in cities. More than 400 cities have a population of more than a million people, some 100 of those cities are in China (the world's most populous nation), 40 in Europe, 45 in the Amercas, 20 in Africa. A city with more than 10 million inhabitants is a Mega City.
| Rank | City | Population |
|---|---|---|
|
1 |
Tokio, Japan |
37,800,000 |
|
2 |
Seoul, South Korea |
23,900,000 |
|
3 |
Mexico City, Mexico |
22,900,000 |
|
4 |
Delhi, India |
22,400,000 |
|
5 |
New York, NY, USA |
21,900,000 |
|
6 |
Mumbai, India |
21,400,000 |
|
7 |
Sao Paulo, Brazil |
21,500,000 |
|
8 |
Shangai, China |
17,900,000 |
|
9 |
Kolkata (Culcutta), India |
16,000,000 |
|
10 |
Beunos Aires, Argentina |
14,100,000 |
When including city agglomerations:
Manila, Pilippines - 19,900,000
Jakarta, Indonesia - 18,900,000
Source: UN Habitat
and World Gazetteer 
