The World: Population - Age 25-29 (2025) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 28. | Colombia | 4,057,395 | 2025 (Est.) | |
| 27. | United Kingdom | 4,118,022 | 2025 (Est.) | |
| 26. | Uganda | 4,257,857 | 2025 (Est.) | |
| 25. | Germany | 4,359,955 | 2025 (Est.) | |
| 24. | Kenya | 4,371,392 | 2025 (Est.) | |
| 23. | South Africa | 4,405,109 | 2025 (Est.) | |
| 22. | Thailand | 4,732,084 | 2025 (Est.) | |
| 21. | Myanmar | 4,903,054 | 2025 (Est.) | |
| 20. | Tanzania | 5,143,566 | 2025 (Est.) | |
| 19. | Sudan | 5,232,468 | 2025 (Est.) | |
| 18. | Iran | 6,082,604 | 2025 (Est.) | |
| 17. | Japan | 6,135,254 | 2025 (Est.) | |
| 16. | Russia | 6,180,976 | 2025 (Est.) | |
| 15. | Turkey | 6,877,330 | 2025 (Est.) | |
| 14. | Vietnam | 7,434,922 | 2025 (Est.) | |
| 13. | Egypt | 7,894,506 | 2025 (Est.) | |
| 12. | Democratic Republic of the Congo | 8,811,758 | 2025 (Est.) | |
| 11. | Mexico | 9,948,295 | 2025 (Est.) | |
| 10. | Ethiopia | 10,430,112 | 2025 (Est.) | |
| 9. | Philippines | 10,620,166 | 2025 (Est.) | |
| 8. | Bangladesh | 16,544,585 | 2025 (Est.) | |
| 7. | Brazil | 17,170,076 | 2025 (Est.) | |
| 6. | Nigeria | 18,391,572 | 2025 (Est.) | |
| 5. | Pakistan | 21,457,052 | 2025 (Est.) | |
| 4. | United States of America | 21,919,482 | 2025 (Est.) | |
| 3. | Indonesia | 22,002,360 | 2025 (Est.) | |
| 2. | China | 84,986,496 | 2025 (Est.) | |
| 1. | India | 114,509,832 | 2025 (Est.) |
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