The World: Population - Age 15-19 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 28. | Afghanistan | 3,968,533 | 2018 | |
| 27. | Colombia | 4,008,466 | 2018 | |
| 26. | France | 4,065,983 | 2018 | |
| 25. | Thailand | 4,355,655 | 2018 | |
| 24. | South Africa | 4,595,111 | 2018 | |
| 23. | Uganda | 4,900,785 | 2018 | |
| 22. | Myanmar | 4,910,890 | 2018 | |
| 21. | Kenya | 5,288,673 | 2018 | |
| 20. | Tanzania | 5,647,364 | 2018 | |
| 19. | Sudan | 5,738,186 | 2018 | |
| 18. | Iran | 5,918,938 | 2018 | |
| 17. | Japan | 5,939,949 | 2018 | |
| 16. | Russia | 6,438,368 | 2018 | |
| 15. | Turkey | 6,973,744 | 2018 | |
| 14. | Vietnam | 7,402,021 | 2018 | |
| 13. | Egypt | 8,453,002 | 2018 | |
| 12. | Democratic Republic of the Congo | 9,684,223 | 2018 | |
| 11. | Mexico | 10,469,262 | 2018 | |
| 10. | Philippines | 11,305,534 | 2018 | |
| 9. | Ethiopia | 12,244,632 | 2018 | |
| 8. | Brazil | 17,713,644 | 2018 | |
| 7. | Bangladesh | 17,906,248 | 2018 | |
| 6. | Nigeria | 21,537,400 | 2018 | |
| 5. | United States of America | 21,593,448 | 2018 | |
| 4. | Pakistan | 22,116,202 | 2018 | |
| 3. | Indonesia | 22,475,386 | 2018 | |
| 2. | China | 77,596,240 | 2018 | |
| 1. | India | 116,848,872 | 2018 |
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