The World: Population - Age 25-29 (1980) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 33. | Zambia | 401,160 | 1980 | |
| 70. | Western Sahara | 9,173 | 1980 | |
| 71. | Vanuatu | 8,792 | 1980 | |
| 1. | United States of America | 19,685,966 | 1980 | |
| 19. | Uganda | 763,751 | 1980 | |
| 75. | Tuvalu | 596 | 1980 | |
| 7. | Turkey | 3,362,797 | 1980 | |
| 55. | Trinidad and Tobago | 88,935 | 1980 | |
| 66. | The Bahamas | 16,702 | 1980 | |
| 13. | Tanzania | 1,268,050 | 1980 | |
| 60. | Swaziland | 42,233 | 1980 | |
| 63. | Suriname | 24,940 | 1980 | |
| 35. | Somalia | 361,877 | 1980 | |
| 68. | Solomon Islands | 14,668 | 1980 | |
| 40. | Sierra Leone | 231,475 | 1980 | |
| 73. | Seychelles | 4,088 | 1980 | |
| 31. | Senegal | 403,673 | 1980 | |
| 72. | Saint Lucia | 8,029 | 1980 | |
| 74. | Saint Kitts and Nevis | 2,942 | 1980 | |
| 34. | Rwanda | 389,562 | 1980 | |
| 52. | Republic of Congo | 108,514 | 1980 | |
| 6. | Philippines | 4,028,656 | 1980 | |
| 39. | Paraguay | 233,811 | 1980 | |
| 44. | Papua New Guinea | 212,196 | 1980 | |
| 48. | Panama | 148,460 | 1980 | |
| 4. | Nigeria | 5,457,781 | 1980 | |
| 28. | Niger | 441,758 | 1980 | |
| 45. | Nicaragua | 204,193 | 1980 | |
| 16. | Nepal | 1,085,755 | 1980 | |
| 56. | Namibia | 74,693 | 1980 | |
| 9. | Myanmar | 2,424,127 | 1980 | |
| 18. | Mozambique | 901,657 | 1980 | |
| 5. | Mexico | 4,765,732 | 1980 | |
| 53. | Mauritania | 105,833 | 1980 | |
| 26. | Mali | 465,952 | 1980 | |
| 17. | Malaysia | 1,065,770 | 1980 | |
| 27. | Malawi | 452,986 | 1980 | |
| 23. | Madagascar | 600,583 | 1980 | |
| 46. | Libya | 190,069 | 1980 | |
| 50. | Liberia | 137,375 | 1980 | |
| 54. | Lesotho | 94,710 | 1980 | |
| 43. | Lebanon | 223,712 | 1980 | |
| 15. | Kenya | 1,096,390 | 1980 | |
| 51. | Jordan | 120,911 | 1980 | |
| 2. | Indonesia | 11,418,802 | 1980 | |
| 41. | Honduras | 229,686 | 1980 | |
| 30. | Haiti | 418,853 | 1980 | |
| 58. | Guyana | 59,420 | 1980 | |
| 57. | Guinea-Bissau | 60,079 | 1980 | |
| 38. | Guinea | 323,290 | 1980 | |
| 20. | Ghana | 699,138 | 1980 | |
| 59. | Gabon | 49,950 | 1980 | |
| 8. | Ethiopia | 2,659,928 | 1980 | |
| 47. | Eritrea | 169,582 | 1980 | |
| 29. | Dominican Republic | 432,632 | 1980 | |
| 62. | Djibouti | 26,633 | 1980 | |
| 12. | Democratic Republic of the Congo | 2,108,960 | 1980 | |
| 21. | Cote d'Ivoire | 652,390 | 1980 | |
| 65. | Comoros | 20,850 | 1980 | |
| 11. | Colombia | 2,138,135 | 1980 | |
| 37. | Chad | 325,011 | 1980 | |
| 49. | Central African Republic | 144,530 | 1980 | |
| 67. | Cape Verde | 15,143 | 1980 | |
| 22. | Cameroon | 638,130 | 1980 | |
| 25. | Cambodia | 494,028 | 1980 | |
| 36. | Burundi | 333,903 | 1980 | |
| 32. | Burkina Faso | 403,522 | 1980 | |
| 3. | Brazil | 9,880,446 | 1980 | |
| 61. | Bhutan | 33,558 | 1980 | |
| 42. | Benin | 224,953 | 1980 | |
| 69. | Belize | 9,451 | 1980 | |
| 64. | Barbados | 21,763 | 1980 | |
| 10. | Argentina | 2,180,134 | 1980 | |
| 24. | Angola | 532,213 | 1980 | |
| 14. | Afghanistan | 1,129,543 | 1980 |
