a projection by the United Nations, using the medium fertility variant
Source: United Nations, 2015
30 countries with the greatest projected population decrease:
| Population in 2020 (in thousands) |
Population in 2100 (in thousands) |
Change (%) | ||
| 1. | Moldova | 4,021 | 1,856 | -53.84 |
| 2. | Bulgaria | 6,884 | 3,406 | -50.52 |
| 3. | Bosnia and Herzegovina | 3,758 | 1,919 | -48.94 |
| 4. | Romania | 18,848 | 10,700 | -43.23 |
| 5. | Poland | 38,407 | 22,289 | -41.97 |
| 6. | Armenia | 3,038 | 1,793 | -40.98 |
| 7. | Albania | 2,935 | 1,755 | -40.20 |
| 8. | Jamaica | 2,840 | 1,704 | -40.00 |
| 9. | Thailand | 68,581 | 41,604 | -39.34 |
| 10. | Georgia | 3,977 | 2,438 | -38.70 |
| 11. | Ukraine | 43,679 | 26,857 | -38.51 |
| 12. | Serbia | 8,674 | 5,334 | -38.51 |
| 13. | Cuba | 11,366 | 7,103 | -37.51 |
| 14. | Croatia | 4,162 | 2,615 | -37.17 |
| 15. | Japan | 125,039 | 83,175 | -33.48 |
| 16. | Latvia | 1,919 | 1,278 | -33.40 |
| 17. | Hungary | 9,685 | 6,506 | -32.82 |
| 18. | Greece | 10,825 | 7,393 | -31.70 |
| 19. | Slovakia | 5,435 | 3,732 | -31.33 |
| 20. | Estonia | 1,295 | 904 | -30.19 |
| 21. | Montenegro | 626 | 437 | -30.19 |
| 22. | Sri Lanka | 21,157 | 14,857 | -29.78 |
| 23. | El Salvador | 6,231 | 4,420 | -29.06 |
| 24. | Macedonia | 2,088 | 1,487 | -28.78 |
| 25. | Trinidad and Tobago | 1,378 | 984 | -28.59 |
| 26. | China | 1,402,848 | 1,004,392 | -28.40 |
| 27. | Lithuania | 2,795 | 2,013 | -27.98 |
| 28. | Portugal | 10,161 | 7,407 | -27.10 |
| 29. | Belarus | 9,365 | 6,916 | -26.15 |
| 30. | South Korea | 51,251 | 38,504 | -24.87 |
30 countries with the greatest projected population increase:
| Population in 2020 (in thousands) |
Population in 2100 (in thousands) |
Change (%) | ||
| 1. | Niger | 24,315 | 209,334 | 760.93 |
| 2. | Zambia | 18,882 | 104,869 | 455.39 |
| 3. | Tanzania | 62,267 | 299,133 | 380.40 |
| 4. | Burundi | 13,126 | 62,662 | 377.39 |
| 5. | Angola | 29,245 | 138,738 | 374.40 |
| 6. | Somalia | 12,423 | 58,311 | 369.38 |
| 7. | Mali | 20,457 | 92,981 | 354.52 |
| 8. | Uganda | 45,856 | 202,868 | 342.40 |
| 9. | Malawi | 20,022 | 87,056 | 334.80 |
| 10. | Congo, DR | 90,169 | 388,733 | 331.12 |
| 11. | Senegal | 17,487 | 75,042 | 329.13 |
| 12. | Chad | 16,431 | 68,927 | 319.49 |
| 13. | Congo, Republic | 5,263 | 22,015 | 318.30 |
| 14. | Mozambique | 31,993 | 127,648 | 298.99 |
| 15. | Ivory Coast | 25,566 | 101,154 | 295.66 |
| 16. | Iraq | 41,972 | 163,905 | 290.51 |
| 17. | Burkina Faso | 20,861 | 80,990 | 288.24 |
| 18. | Gambia | 2,326 | 8,896 | 282.46 |
| 19. | Madagascar | 27,799 | 105,499 | 279.51 |
| 20. | Nigeria | 206,831 | 752,247 | 263.70 |
| 21. | Guinea | 14,355 | 49,049 | 241.69 |
| 22. | Togo | 8,294 | 27,873 | 236.06 |
| 23. | Liberia | 5,091 | 15,977 | 213.83 |
| 24. | Cameroon | 26,333 | 82,382 | 212.85 |
| 25. | Kenya | 52,187 | 156,856 | 200.57 |
| 26. | South Sudan | 14,122 | 41,752 | 195.65 |
| 27. | Palestine | 5,333 | 15,516 | 190.94 |
| 28. | Benin | 12,361 | 35,544 | 187.55 |
| 29. | Mauritania | 4,573 | 13,059 | 185.57 |
| 30. | Sudan | 45,308 | 127,328 | 181.03 |