The most populous cities in the world, as of 2021, are:
- Tokyo, Japan – 37.4 million people
- Delhi, India – 29.5 million people
- Shanghai, China – 26.5 million people
- Mumbai, India – 21.5 million people
- Mexico City, Mexico – 21.2 million people
- São Paulo, Brazil – 21.7 million people
- Osaka, Japan – 19.3 million people
- Cairo, Egypt – 20.4 million people
- New York City, United States – 8.4 million people
- Tianjin, China – 15.9 million people
Note that these figures may vary slightly depending on the source and the definition of “city,” as some areas may be considered urban agglomerations or metropolitan areas rather than cities proper. Additionally, population figures are estimates and can change over time due to factors such as migration and birth/death rates.
