Top Megacities in 2030

A megacity has 10 million or more inhabitants, and there will be 44 of them in 2030.  About 9% of the entire world's population will reside in one of these cities. Here is the list:

1. Tokyo, Japan 37.3m
2. Delhi, India 35.4m
3. Shanghai, China 30.6m
4. Beijing, China 27.5m
5. Mumbai, India 27.3m
6. Dhaka, Bangladesh 26.8m
7. Karachi, Pakistan 24.3m
8. Cairo, Egypt 24.1m
9. Mexico City, Mexico  23.7m
10. Sao Paulo, Brazil 23.4m
11. Lagos, Nigeria 23.4m
12. Osaka, Japan 20.1m
13. New York, US 19.8m
14. Kinshasha, Congo 19.4m
15. Kolkata, India 18.7m
16. Guangzhou, China 17.4m
17. Chongqing, China 17.3m
18. Buenos Aires, Argentina 16.9m
19. Istanbul, Turkey 16.6m
20. Manila, Philippines 16.4m
21. Tianjin, China 14.5m
22. Bangalore, India 14.5m
23. Rio de Janeiro, Brazil  14.1m
24. Jakarta, Indonesia 13.6m
25. Chennai, India 13.6m
26. Los Angeles, CA 13.2m
27. Lahore, Pakistan 12.7m
28. Shenzhen, China 12.6m
29. Hyderabad, India 12.5m
30. Moscow, Russia 12.2m
31. Lima, Peru 12.1m
32. Bogota, Colombia 11.9m
33. Paris, France 11.8m
34. Johannesburg, South Africa 11.5m
35. Bangkok, Thailand 11.4m
36. London, UK 11.4m
37. Dar es Salaam, Tanzania 10.3m
38. Ahmadabad, India 10.3m
39. Seoul, South Korea 10.0m
40. Luanda, Angola 10.0m
41. Chengdu, China 10.0m
42. Ho Chi Minh City, Vietnam 10.0m
43. Tehran, Iran 10.0m
44. Chicago, IL 9.9m

Source: http://www.economist.com/node/21642053?fsrc=scn/fb/wl/bl/dc/dailychart
http://www.maximizingprogress.org/2015/02/urbanization-map-rise-of-megacity.html

Update: I don't think this is accurate.  Greater Los Angeles has more than 18 million people, and Seoul has over 23 million.