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Top Questions

Which is the world’s largest city?

What are the 10 largest metropolitan areas in the world?

Which has a larger population: Mexico City or New York City?

With more than 73 million inhabitants, Guangzhou, China, is far and away the world’s largest city. But, what defines a city? When you are comparing developments with tens of millions of people located in countries across the globe, a unified definition is tricky—one needs to consider a variety of population groupings, including urban populations, consolidated urban areas, agglomerations, and conglomerations. However, all these groupings have one thing in common: They feature a central city surrounded by contiguous settlements of people. The interactive map and table below detail the world’s 25 largest such groupings.

rank central city country urban area type urban area population (2026 est.) details
1Urban population: densely populated and continuous urban settlement.
2Agglomeration: large, densely and contiguously populated area consisting of a city and its suburbs.
3Conglomeration: grouping of two or more agglomerations.
4Consolidated urban area: combination of neighboring urban areas or populations.
Source: Thomas Brinkhoff: Major Agglomerations of the World (reference date January 1, 2026).
1 Guangzhou China urban population1 73,600,000 Includes Dongguan, Foshan, Huizhou, Jiangmen, Shenzhen, and Zhongshan.
2 Shanghai China urban population1 42,300,000 Includes Changshu, Changzhou, Suzhou, and Wuxi.
3 Tokyo Japan agglomeration2 41,300,000 Includes Chiba, Kawasaki, Maebashi, Sagamihara, Saitama, Utsunomiya, and Yokohama.
4 Delhi India conglomeration3 36,900,000 Includes Faridabad, Ghaziabad, and Gurugram.
5 Jakarta Indonesia agglomeration2 29,800,000 Includes Bekasi, Bogor, Depok, Tangerang, and Tangerang Selatan.
6 Mumbai India conglomeration3 28,100,000 Includes Bhiwandi, Kalyan, Thane, Ulhasnagar, and Vasai-Virar.
7 Manila Philippines agglomeration2 27,100,000 Includes Caloocan and Quezon City.
8 Mexico City Mexico consolidated urban area4 25,600,000 Includes NezahualcĂłyotl, Ecatepec, and Naucalpan.
9 Seoul South Korea consolidated urban area4 25,400,000 Includes Bucheon, Goyang, Incheon, Seongnam, and Suwon.
10 Dhaka Bangladesh agglomeration2 23,700,000
11 Cairo Egypt agglomeration2 23,200,000 Includes Giza and Shubrā al-Khaymah.
12 SĂŁo Paulo Brazil consolidated urban area4 22,700,000 Includes Guarulhos.
13 New York City U.S. consolidated urban area4 22,600,000 Includes Bridgeport, Newark, and New Haven.
14 Bangkok Thailand agglomeration2 22,400,000
15 Lagos Nigeria 21,900,000 Source notes low reliability.
16 Beijing China urban population1 21,800,000
16 Karachi Pakistan consolidated urban area4 21,800,000
18 Moscow Russia agglomeration2 19,100,000
19 Chengdu China urban population1 18,300,000
20 Kolkata India conglomeration3 18,100,000 Includes Howrah.
21 ƌsaka Japan agglomeration2 17,700,000 Includes Himeji, Kƍbe, Kyƍto, and Sakai.
22 Los Angeles U.S. consolidated urban area4 17,400,000 Includes Anaheim and Riverside.
23 Tehran Iran agglomeration2 17,200,000 Includes Karaj.
24 Buenos Aires Argentina consolidated urban area4 17,000,000 Includes San Justo and La Plata.
25 Kinshasa Democratic Republic of the Congo city 16,900,000 Source notes low reliability.

Views of some of the world’s largest cities

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