The World: Population - Age 25-29 (2026) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 28. | United Kingdom | 4,061,026 | 2026 (Est.) | |
| 27. | France | 4,097,147 | 2026 (Est.) | |
| 26. | Germany | 4,331,713 | 2026 (Est.) | |
| 25. | South Africa | 4,379,536 | 2026 (Est.) | |
| 24. | Uganda | 4,383,624 | 2026 (Est.) | |
| 23. | Thailand | 4,560,823 | 2026 (Est.) | |
| 22. | Kenya | 4,577,533 | 2026 (Est.) | |
| 21. | Myanmar | 4,868,018 | 2026 (Est.) | |
| 20. | Tanzania | 5,238,166 | 2026 (Est.) | |
| 19. | Sudan | 5,334,436 | 2026 (Est.) | |
| 18. | Iran | 5,938,299 | 2026 (Est.) | |
| 17. | Japan | 6,073,183 | 2026 (Est.) | |
| 16. | Russia | 6,124,507 | 2026 (Est.) | |
| 15. | Turkey | 6,899,312 | 2026 (Est.) | |
| 14. | Vietnam | 7,314,856 | 2026 (Est.) | |
| 13. | Egypt | 8,088,436 | 2026 (Est.) | |
| 12. | Democratic Republic of the Congo | 8,982,005 | 2026 (Est.) | |
| 11. | Mexico | 9,906,362 | 2026 (Est.) | |
| 10. | Philippines | 10,783,284 | 2026 (Est.) | |
| 9. | Ethiopia | 10,887,736 | 2026 (Est.) | |
| 8. | Bangladesh | 16,908,858 | 2026 (Est.) | |
| 7. | Brazil | 17,296,704 | 2026 (Est.) | |
| 6. | Nigeria | 19,067,732 | 2026 (Est.) | |
| 5. | Pakistan | 21,575,052 | 2026 (Est.) | |
| 4. | Indonesia | 22,059,864 | 2026 (Est.) | |
| 3. | United States of America | 22,107,200 | 2026 (Est.) | |
| 2. | China | 81,366,056 | 2026 (Est.) | |
| 1. | India | 114,946,896 | 2026 (Est.) |
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