"Urban area" can refer to towns, cities, and suburbs. An urban area includes the city itself, as well as the surrounding areas. When two or more metropolitan areas grow until they combine, the result may be known as a megalopolis.
These are the Top Ten Largest Urban Area Cities in the world based on population.
Sources :
- A: National census authority data agglomeration data (land area or population).
- B: Demographia land area estimate based upon map or satellite photograph analysis.
- C: Demographia population estimate from lower order jurisdictions, including resuction for rural areas.
- D: Population estimate based upon the United Nations agglomeration estimate.
- E: Demographia population estimate from national census authority data.
- F: Other Demographia population estimate, such as from unofficial local reports.
- L: Demographia population estimate from local authority data.
- N: Combined urban area using national census authority data.
1. Tokyo, Japan
Population : 37,239,000 Area : 8,547 km2 Density : 4,400 / km2 Sources : D/B
 |
| View of Shinjuku skyscrapers and Mount Fuji, Tokyo, by Morio |
2. Jakarta, Indonesia
Population : 26,746,000 Area : 2,784 km2 Density : 9,600 / km2 Sources : C/B
 |
| Jakarta, Indonesia © blog888 |
3. Seoul, South Korea
Population : 22,868,000 Area : 2,163 km2 Density : 10,600 / km2 Sources : C/B
 |
| Seoul by day, by Alex Murphy |
4. Karachi, Pakistan
Population : 23,300,000 Area : 803 km2 Density : 26,000 / km2 Sources : C/B
 |
| One of the main thoroughfares of Karachi, by No Real |
5. Delhi, India
Population : 22,826,000 Area : 1,943 km2 Density : 11,800 / km2 Sources : A/B
 |
| Sprawling suburb of Noida, by McKay Savage |
6. Shanghai, China
Population : 21,766,000 Area : 3,497 km2 Density : 6,200 / km2 Sources : C/B
 |
| Shanghai city, by Joy Ito |
7. Manila, Philippines
Population : 21,241,000 Area : 1,437 km2 Density : 14,800 / km2 Sources : C/B
 |
| Manila skyline during the day, by aSIMULAtor |
8. New York, United States
Population : 20,673,000 Area : 11,642 km2 Density : 1,800 / km2 Sources : N/N
 |
| New York city, by alain maury |
9.Sao Paulo, Brazil
Population : 20,568,000 Area : 3,173 km2 Density : 6,500 / km2 Sources : C/B
 |
| Sao Paulo Business District, by Caio do Valle |
10. Mexico City, Mexico
Population : 20,032,000 Area : 2,046 km2 Density : 9,800 / km2 Sources : C/B
 |
