metropolitan areas

1 Tokyo, Japan 27.3 million

3 Sao Paulo, Brazil 22 million

5 Mumbai, India (Bombay) 16.6 million

7 Los Angeles, United States 15.3 million

9 Jakarta, Indonesia 12.8 million

11 Seoul, South Korea 12 million

13 Buenos Aires, Argentina 11.2 million

15 Rio de Janeiro, Brazil 10.1 million

2 Mexico City, Mexico 24 million

4 New York City, United States 19.8 million

6 Shanghai, China 16.2 million

8 Beijing, China 13.3 million

10 Kolkata, India (Calcutta) 12 million

12 Tianjin, China 11.6 million

14 Osaka, Japan 10.6 million

The size of the largest metropolitan areas in the world is almost incomprehensible, all are larger than many nations.