NOTE: Numbers shown include population within the recognized metro area of the city, and they also include people living in the immediate surrounding area outside of the established border of the city, (the immediate suburbs)

NOTE: Some population numbers shown are accumulated at-best estimates, as consistent (2012 census) information is not yet available in some parts of Africa and Asia.

1.Tokyo, Japan (37,126,000)
2.Jakarta, Indonesia (26,063,000)
3.Seoul, South Korea (22,547,000)
4.Delhi, India (22,242,000)
5.Shanghai, China (20,860,000)
6.Manila, Philippines (20,767,000)
7.Karachi, Pakistan (20,711,000)
8.New York, USA (20,464,000)
9.Sao Paulo, Brazil (20,186,000)
10.Mexico City, Mexico (19,463,000)
11.Cairo, Egypt (17,816,000)
12.Beijing, China (17,311,000)
13.Osaka, Japan (17,011,000)
14.Mumbai (Bombay), India (16,910,000)
15.Guangzhou, China (16,827,000)
16.Moscow, Russia (15,512,000)
17.Los Angeles, USA (14,900,000)
18.Calcutta, India (14,374,000)
19.Dhaka, Bangladesh (14,000,000)
20.Buenos Aires, Argentina (13,639,000)
21.Istanbul, Turkey (13,576,000)
22.Rio de Janeiro, Brazil (12,043,000)
23.Shenzhen, China (11,885,000)
24.Lagos, Nigeria (11,547,000)
25.Paris, France (10,755,000)
26.Nagoya, Japan (10,027,000)
27.Lima, Peru (9,121,600)
28.Chicago, USA (9,121,000)
29.Kinshasa, Congo (DRC) (9,046,000)
30.Tianjin, China (8,922,000)
31.Chennai, India (8,865,000)
32.Bogota, Colombia (8,702,000)
33.Bengaluru, India (8,670,000)
34.London, United Kingdom (8,586,000)
35.Taipei, Taiwan (8,338,000)
36.Ho Chi Minh City (Saigon), Vietnam (8,314,000)
37.Dongguan, China (8,278,000)
38.Hyderabad, India (7,903,000)
39.Chengdu, China (7,895,000)
40.Lahore, Pakistan (7,743,000)
41.Johannesburg, South Africa (7,618,000)
42.Tehran, Iran (7,419,000)
43.Essen, Germany (7,304,000)
44.Bangkok, Thailand (7,151,000)
45.Hong Kong, Hong Kong (7,106,000)
46.Wuhan, China (6,995,000)
47.Ahmedabad, India (6,482,000)
48.Chongqung, China (6,321,000)
49.Baghdad, Iraq (6,204,000)
50.Hangzhou, China (6,178,000)
51.Toronto, Canada (6,139,000)
52.Kuala Lumpur, Malaysia (6,094,000)
53.Santiago, Chile (6,015,000)
54.Dallas-Fort Worth, USA (5,874,000)
55.San Francisco-San Jose, USA (5,864,000)
56.Quanzhou, China (5,798,000)
57.Miami, USA (5,582,000)
58.Shenyang, China (5,553,000)
59.Belo Horizonte, Brazil (5,523,000)
60.Philadelphia, USA (5,474,000)
61.Nanjing, China (5,455,000)
62.Madrid, Spain (5,427,000)
63.Houston, USA (5,383,000)
64.Xi'an-Xianyang, China (5,253,000)
65.Milan, Italy (5,232,000)
66.Luanda, Angola (5,204,000)
67.Pune, India (5,156,000)
68.Singapore, Singapore (5,155,000)
69.Riyadh, Saudi Arabia (5,037,000)
70.Khartoum, Sudan (4,887,000)
71.Saint Petersburg, Russia (4,879,000)
72.Atlanta, USA (4,715,000)
73.Surat, India (4,687,000)
74.Washington, D.C., USA (4,679,000)
75.Bandung, Indonesia (4,674,000)
76.Surabaya, Indonesia (4,617,000)
77.Yangoon, Myanmar (4,528,000)
78.Alexandria, Egypt (4,526,000)
79.Guadalajara, Mexico (4,524,000)
80.Harbin, China (4,477,000)
81.Boston, USA (4,427,000)
82.Zhengzhou, China (4,379,000)
83.Qingdao, China (4,378,000)
84.Abidjan, Cote d'Ivoire (4,368,000)
85.Barcelona, Spain (4,223,000)
86.Monterrey, Mexico (4,180,000)
87.Ankara, Turkey (4,172,000)
88.Suzhou, China (4,159,000)
89.Phoenix-Mesa, USA (4,076,000)
90.Salvador, Brazil (4,032,000)
91.Porto Alegre, Brazil (3,965,000)
92.Rome, Italy (3,799,000)
93.Accra, Ghana (3,792,000)
94.Sydney, Australia (3,785,000)
95.Recife, Brazil (3,756,000)
96.Naples, Italy (3,726,000)
97.Detroit, USA (3,724,000)
98.Dalian, China (3,717,000)
99.Fuzhou, China (3,713,000)
100.Medellin, Colombia (3,686,000)

All countries of the world - by population

Capital cities of the world - with population

Sources: Varied international public domain sites, the U.S. Census Bureau and Times Atlas of the World