Among urban areas with at least 1 million people, Mumbai is the most densely populated at 27,714 people per km², ahead of Mbuji-Mayi and Beni region.
| # | City | Population |
|---|---|---|
| 1 | Mumbai | 20.5 million |
| 2 | Mbuji-Mayi | 3.60 million |
| 3 | Beni region | 1.87 million |
| 4 | Kinshasa | 12.9 million |
| 5 | Mogadishu | 4.80 million |
| 6 | Karachi | 21.0 million |
| 7 | Surat | 7.10 million |
| 8 | Hong Kong | 4.81 million |
| 9 | Ahmedabad | 7.90 million |
| 10 | Tshikapa | 1.07 million |
| 11 | Hyderabad | 2.96 million |
| 12 | Bogotá | 10.4 million |
| 13 | Luxor region | 6.31 million |
| 14 | Kalyan-Dombivli | 3.21 million |
| 15 | Hargeisa | 1.50 million |
| 16 | Ta'izz | 1.28 million |
| 17 | Brazzaville | 3.19 million |
| 18 | Yaoundé | 5.48 million |
| 19 | Faisalabad | 5.68 million |
| 20 | Sana'a | 3.76 million |
| 21 | Herat | 1.49 million |
| 22 | Kabul | 6.25 million |
| 23 | Kananga | 1.54 million |
| 24 | Aligarh | 1.69 million |
| 25 | Lahore | 14.3 million |
| 26 | Douala | 4.46 million |
| 27 | Alexandria | 6.93 million |
| 28 | El Mahalla El Kubra | 1.10 million |
| 29 | Addis Ababa | 7.28 million |
| 30 | Prayagraj | 2.36 million |
| 31 | Tangier | 1.30 million |
| 32 | Bangalore | 15.2 million |
| 33 | Cairo | 25.2 million |
| 34 | Delhi | 31.4 million |
| 35 | Duhok | 1.14 million |
| 36 | Solapur | 1.11 million |
| 37 | Cali | 2.69 million |
| 38 | Nanning | 3.70 million |
| 39 | Dakar | 3.97 million |
| 40 | Kanpur | 4.41 million |
| 41 | Damascus | 3.77 million |
| 42 | Sylhet | 1.21 million |
| 43 | Medellín | 3.22 million |
| 44 | Barranquilla | 2.17 million |
| 45 | Sargodha | 1.13 million |
| 46 | Fez | 1.43 million |
| 47 | Gujranwala | 3.11 million |
| 48 | Sincan | 1.17 million |
| 49 | Gaza | 1.06 million |
| 50 | Moradabad | 1.45 million |
| 51 | Agra | 2.79 million |
| 52 | Malanje | 1.05 million |
| 53 | Patna | 3.43 million |
| 54 | Saharanpur | 1.25 million |
| 55 | Jerusalem | 1.02 million |
| 56 | Chongqing | 8.45 million |
| 57 | Abidjan | 6.45 million |
| 58 | Indore | 3.60 million |
| 59 | Aleppo | 3.08 million |
| 60 | Pyongyang | 2.87 million |
| 61 | Gaziantep | 1.68 million |
| 62 | Gwalior | 1.53 million |
| 63 | Nanchong | 1.11 million |
| 64 | Jamshedpur | 2.01 million |
| 65 | Luanda | 11.7 million |
| 66 | Cabinda | 1.22 million |
| 67 | Amman | 6.43 million |
| 68 | Chhatrapati Sambhajinagar | 1.54 million |
| 69 | Kano | 5.11 million |
| 70 | Vasai-Virar | 1.55 million |
| 71 | Puducherry | 1.06 million |
| 72 | Karaj | 3.59 million |
| 73 | Rajkot | 1.55 million |
| 74 | Nagpur | 3.40 million |
| 75 | Taiyuan | 4.33 million |
| 76 | Singapore | 5.12 million |
| 77 | Asansol region | 2.89 million |
| 78 | Pune | 6.67 million |
| 79 | Yangon | 6.19 million |
| 80 | Tehran | 9.36 million |
| 81 | Mashhad | 5.38 million |
| 82 | Basra | 2.13 million |
| 83 | Fuzhou | 2.88 million |
| 84 | Istanbul | 14.2 million |
| 85 | Ürümqi | 3.97 million |
| 86 | Nairobi | 6.65 million |
| 87 | Multan | 2.97 million |
| 88 | Kathmandu | 3.86 million |
| 89 | Casablanca | 4.58 million |
| 90 | Jabalpur | 1.62 million |
| 91 | Lima | 10.8 million |
| 92 | Mosul | 1.68 million |
| 93 | Bursa | 2.37 million |
| 94 | Tianjin | 7.33 million |
| 95 | Chennai | 11.5 million |
| 96 | Wuhu | 2.14 million |
| 97 | Vijayawada | 1.24 million |
| 98 | Lanzhou | 2.69 million |
| 99 | Lagos | 12.8 million |
| 100 | Hyderabad | 9.46 million |
Urban area = contiguous built-up land and the people living in it in 2025, drawn the same way for every city regardless of administrative boundaries. Source: GHSL Urban Centre Database R2024A, European Commission, Joint Research Centre (CC BY 4.0); some names adjusted to the city names people use, and country attribution follows the dataset.
“Region” marks urban areas that join many towns and dense rural settlement into one built-up area; they are named after their main town.
Official city limits are drawn differently in every country: some take in farmland and mountains, others stop at the historic core. Ranking cities by those limits mostly ranks boundary decisions. These lists use the built-up area instead, so a city's figure includes its suburbs wherever they are continuous with it, and nothing beyond.
For figures inside official limits, see the city-limits rankings; for the background, read how to compare city sizes honestly. Click any city to see it on a map at the same scale as another.