The World: Population - Male - Age 20-24 (1981) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 21. | Afghanistan | 628,421 | 1981 | |
| 29. | Angola | 322,290 | 1981 | |
| 14. | Argentina | 1,155,037 | 1981 | |
| 90. | Aruba | 3,220 | 1981 | |
| 71. | Bahrain | 25,567 | 1981 | |
| 4. | Bangladesh | 4,255,459 | 1981 | |
| 75. | Barbados | 12,660 | 1981 | |
| 82. | Belize | 6,603 | 1981 | |
| 52. | Benin | 130,168 | 1981 | |
| 72. | Bhutan | 19,002 | 1981 | |
| 67. | Botswana | 33,379 | 1981 | |
| 3. | Brazil | 6,064,672 | 1981 | |
| 76. | Brunei | 12,331 | 1981 | |
| 38. | Burkina Faso | 254,189 | 1981 | |
| 43. | Burundi | 202,707 | 1981 | |
| 34. | Cambodia | 268,030 | 1981 | |
| 25. | Cameroon | 393,859 | 1981 | |
| 77. | Cape Verde | 12,327 | 1981 | |
| 55. | Central African Republic | 98,496 | 1981 | |
| 45. | Chad | 188,176 | 1981 | |
| 12. | Colombia | 1,410,287 | 1981 | |
| 78. | Comoros | 11,991 | 1981 | |
| 28. | Cote d'Ivoire | 333,093 | 1981 | |
| 13. | Democratic Republic of the Congo | 1,267,992 | 1981 | |
| 74. | Djibouti | 15,138 | 1981 | |
| 88. | Dominica | 3,563 | 1981 | |
| 31. | Dominican Republic | 293,013 | 1981 | |
| 56. | Eritrea | 92,498 | 1981 | |
| 10. | Ethiopia | 1,671,566 | 1981 | |
| 68. | Gabon | 32,047 | 1981 | |
| 24. | Ghana | 465,597 | 1981 | |
| 86. | Grenada | 4,549 | 1981 | |
| 30. | Guatemala | 302,487 | 1981 | |
| 44. | Guinea | 192,357 | 1981 | |
| 69. | Guinea-Bissau | 30,012 | 1981 | |
| 66. | Guyana | 37,305 | 1981 | |
| 39. | Haiti | 249,028 | 1981 | |
| 46. | Honduras | 157,565 | 1981 | |
| 2. | Indonesia | 6,992,998 | 1981 | |
| 57. | Jordan | 92,414 | 1981 | |
| 18. | Kenya | 712,623 | 1981 | |
| 61. | Kosovo | 72,699 | 1981 | |
| 48. | Lebanon | 147,645 | 1981 | |
| 63. | Lesotho | 59,459 | 1981 | |
| 59. | Liberia | 83,197 | 1981 | |
| 49. | Libya | 142,194 | 1981 | |
| 26. | Madagascar | 389,112 | 1981 | |
| 33. | Malawi | 279,840 | 1981 | |
| 20. | Malaysia | 638,240 | 1981 | |
| 40. | Mali | 248,765 | 1981 | |
| 62. | Mauritania | 65,290 | 1981 | |
| 7. | Mexico | 3,152,116 | 1981 | |
| 23. | Mozambique | 530,214 | 1981 | |
| 11. | Myanmar | 1,568,414 | 1981 | |
| 65. | Namibia | 44,338 | 1981 | |
| 19. | Nepal | 652,967 | 1981 | |
| 51. | Nicaragua | 131,495 | 1981 | |
| 35. | Niger | 265,267 | 1981 | |
| 6. | Nigeria | 3,452,369 | 1981 | |
| 5. | Pakistan | 4,188,440 | 1981 | |
| 58. | Panama | 91,502 | 1981 | |
| 50. | Papua New Guinea | 135,153 | 1981 | |
| 47. | Paraguay | 157,333 | 1981 | |
| 15. | Peru | 830,560 | 1981 | |
| 8. | Philippines | 2,387,828 | 1981 | |
| 60. | Republic of Congo | 73,665 | 1981 | |
| 41. | Rwanda | 246,473 | 1981 | |
| 91. | Saint Kitts and Nevis | 2,305 | 1981 | |
| 85. | Saint Lucia | 5,522 | 1981 | |
| 81. | Samoa | 7,916 | 1981 | |
| 87. | Sao Tome and Principe | 3,951 | 1981 | |
| 42. | Senegal | 244,430 | 1981 | |
| 32. | Serbia | 287,995 | 1981 | |
| 89. | Seychelles | 3,477 | 1981 | |
| 54. | Sierra Leone | 118,365 | 1981 | |
| 80. | Solomon Islands | 9,789 | 1981 | |
| 36. | Somalia | 259,216 | 1981 | |
| 16. | Sri Lanka | 791,005 | 1981 | |
| 73. | Suriname | 16,915 | 1981 | |
| 70. | Swaziland | 25,774 | 1981 | |
| 27. | Syria | 375,068 | 1981 | |
| 17. | Tanzania | 746,262 | 1981 | |
| 79. | The Bahamas | 10,128 | 1981 | |
| 53. | Togo | 118,460 | 1981 | |
| 64. | Trinidad and Tobago | 58,903 | 1981 | |
| 9. | Turkey | 2,119,852 | 1981 | |
| 92. | Tuvalu | 351 | 1981 | |
| 22. | Uganda | 551,307 | 1981 | |
| 1. | United States of America | 10,857,895 | 1981 | |
| 84. | Vanuatu | 5,658 | 1981 | |
| 83. | Western Sahara | 5,941 | 1981 | |
| 37. | Zambia | 254,757 | 1981 |
