As of 2021, the fastest-growing cities in the world are:
1. Chengdu, China
2. Dar es Salaam, Tanzania
3. Bengaluru, India
4. Dhaka, Bangladesh
5. Kinshasa, Democratic Republic of Congo
6. Lagos, Nigeria
7. Manila, Philippines
8. Delhi, India
9. Jakarta, Indonesia
10. Shenzhen, China
Please note that this list may vary according to different sources and can change over time due to various factors such as population growth, urbanization, and economic development.
