Top 20 country by population

 As of my last knowledge update in January 2022, the top 20 countries by population are:

1. **China**

2. **India**

3. **United States**

4. **Indonesia**

5. **Pakistan**

6. **Brazil**

7. **Nigeria**

8. **Bangladesh**

9. **Russia**

10. **Mexico**

11. **Japan**

12. **Ethiopia**

13. **Philippines**

14. **Egypt**

15. **Vietnam**

16. **DR Congo (Democratic Republic of the Congo)**

17. **Turkey**

18. **Iran**

19. **Germany**

20. **Thailand**

Please note that population figures can change, and it's advisable to check the latest demographic data for the most up-to-date information.