The World: Population - Age 45-49 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 28. | Democratic Republic of the Congo | 2,934,305 | 2018 | |
| 27. | Ukraine | 2,972,684 | 2018 | |
| 26. | Colombia | 3,088,884 | 2018 | |
| 25. | Ethiopia | 3,504,450 | 2018 | |
| 24. | Myanmar | 3,559,395 | 2018 | |
| 23. | Spain | 4,141,002 | 2018 | |
| 22. | South Korea | 4,217,751 | 2018 | |
| 21. | Egypt | 4,351,330 | 2018 | |
| 20. | United Kingdom | 4,479,936 | 2018 | |
| 19. | France | 4,630,864 | 2018 | |
| 18. | Italy | 5,095,324 | 2018 | |
| 17. | Iran | 5,095,773 | 2018 | |
| 16. | Thailand | 5,122,755 | 2018 | |
| 15. | Turkey | 5,472,657 | 2018 | |
| 14. | Philippines | 5,635,285 | 2018 | |
| 13. | Germany | 5,749,735 | 2018 | |
| 12. | Vietnam | 6,268,678 | 2018 | |
| 11. | Nigeria | 7,018,484 | 2018 | |
| 10. | Mexico | 7,725,601 | 2018 | |
| 9. | Russia | 8,831,728 | 2018 | |
| 8. | Japan | 9,285,163 | 2018 | |
| 7. | Bangladesh | 9,581,419 | 2018 | |
| 6. | Pakistan | 9,647,132 | 2018 | |
| 5. | Brazil | 14,313,741 | 2018 | |
| 4. | Indonesia | 17,271,834 | 2018 | |
| 3. | United States of America | 20,922,296 | 2018 | |
| 2. | India | 79,237,696 | 2018 | |
| 1. | China | 122,972,688 | 2018 |
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