Megacity population and rank for world cities for the year 1985
| Rank | Megacity | Country | Population |
|---|---|---|---|
| 1 | Tokyo | Japan | 30,303,794 |
| 2 | Kinki M.M.A. (Osaka) | Japan | 17,582,632 |
| 3 | New York-Newark | United States of America | 15,826,788 |
| 4 | Ciudad de México (Mexico City) | Mexico | 14,278,216 |
| 5 | São Paulo | Brazil | 13,394,815 |
| 6 | Mumbai (Bombay) | India | 10,685,530 |
| 7 | Buenos Aires | Argentina | 10,523,442 |
| 8 | Los Angeles-Long Beach-Santa Ana | United States of America | 10,181,172 |
| 9 | Kolkata (Calcutta) | India | 10,003,665 |
| 10 | Seoul | Republic of Korea | 9,333,674 |
| 11 | Rio de Janeiro | Brazil | 9,241,709 |
| 12 | Paris | France | 8,956,222 |
| 13 | Moskva (Moscow) | Russian Federation | 8,579,920 |
| 14 | Al-Qahirah (Cairo) | Egypt | 8,328,255 |
| 15 | Chukyo M.M.A. (Nagoya) | Japan | 8,023,149 |
| 16 | Chicago | United States of America | 7,285,121 |
| 17 | Delhi | India | 7,225,758 |
| 18 | Shanghai | China | 7,096,280 |
| 19 | Jakarta | Indonesia | 7,009,030 |
| 20 | Manila | Philippines | 6,887,920 |
| 21 | London | United Kingdom | 6,740,954 |
| 22 | Karachi | Pakistan | 6,032,582 |
| 23 | Beijing | China | 6,017,488 |
| 24 | Tehran | Iran (Islamic Republic of) | 5,839,193 |
| 25 | Istanbul | Turkey | 5,407,297 |
| 26 | Krung Thep (Bangkok) | Thailand | 5,279,127 |
| 27 | Lima | Peru | 5,116,117 |
| 28 | Kitakyushu-Fukuoka M.M.A. | Japan | 4,961,198 |
| 29 | Hong Kong | China, Hong Kong SAR | 4,959,721 |
| 30 | Sankt Peterburg (Saint Petersburg) | Russian Federation | 4,844,416 |
Data from UN World Urbanization Prospects