The World: Population - Male - Age 30-34 (1981) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | United States of America | 9,268,806 | 1981 | |
| 2. | Brazil | 4,223,452 | 1981 | |
| 3. | Indonesia | 4,179,338 | 1981 | |
| 4. | Bangladesh | 2,851,268 | 1981 | |
| 5. | Pakistan | 2,525,332 | 1981 | |
| 6. | Nigeria | 2,497,405 | 1981 | |
| 7. | Mexico | 1,957,730 | 1981 | |
| 8. | Philippines | 1,613,567 | 1981 | |
| 9. | Turkey | 1,443,449 | 1981 | |
| 10. | Ethiopia | 1,193,998 | 1981 | |
| 11. | Argentina | 1,020,227 | 1981 | |
| 12. | Myanmar | 963,793 | 1981 | |
| 13. | Democratic Republic of the Congo | 883,755 | 1981 | |
| 14. | Colombia | 802,640 | 1981 | |
| 15. | Sri Lanka | 580,913 | 1981 | |
| 16. | Peru | 559,907 | 1981 | |
| 17. | Tanzania | 501,720 | 1981 | |
| 18. | Nepal | 457,473 | 1981 | |
| 19. | Malaysia | 450,694 | 1981 | |
| 20. | Afghanistan | 440,085 | 1981 | |
| 21. | Kenya | 424,251 | 1981 | |
| 22. | Mozambique | 375,767 | 1981 | |
| 23. | Cote d'Ivoire | 307,446 | 1981 | |
| 24. | Serbia | 298,370 | 1981 | |
| 25. | Uganda | 288,273 | 1981 | |
| 26. | Cameroon | 272,768 | 1981 | |
| 27. | Ghana | 242,352 | 1981 | |
| 28. | Madagascar | 241,886 | 1981 | |
| 29. | Angola | 230,072 | 1981 | |
| 30. | Syria | 218,108 | 1981 | |
| 31. | Guatemala | 210,607 | 1981 | |
| 32. | Malawi | 191,659 | 1981 | |
| 33. | Niger | 189,803 | 1981 | |
| 34. | Mali | 185,720 | 1981 | |
| 35. | Dominican Republic | 183,196 | 1981 | |
| 36. | Haiti | 178,758 | 1981 | |
| 37. | Cambodia | 172,217 | 1981 | |
| 38. | Zambia | 168,794 | 1981 | |
| 39. | Senegal | 165,921 | 1981 | |
| 40. | Burkina Faso | 153,986 | 1981 | |
| 41. | Rwanda | 142,906 | 1981 | |
| 42. | Guinea | 133,445 | 1981 | |
| 43. | Chad | 130,790 | 1981 | |
| 44. | Burundi | 119,559 | 1981 | |
| 45. | Somalia | 117,465 | 1981 | |
| 46. | Libya | 106,088 | 1981 | |
| 47. | Sierra Leone | 99,790 | 1981 | |
| 48. | Papua New Guinea | 97,631 | 1981 | |
| 49. | Paraguay | 90,748 | 1981 | |
| 50. | Honduras | 89,667 | 1981 | |
| 51. | Benin | 83,830 | 1981 | |
| 52. | Togo | 79,690 | 1981 | |
| 53. | Nicaragua | 78,091 | 1981 | |
| 54. | Lebanon | 76,750 | 1981 | |
| 55. | Eritrea | 71,267 | 1981 | |
| 56. | Panama | 65,058 | 1981 | |
| 57. | Liberia | 64,570 | 1981 | |
| 58. | Jordan | 58,079 | 1981 | |
| 59. | Central African Republic | 55,242 | 1981 | |
| 60. | Mauritania | 43,458 | 1981 | |
| 61. | Republic of Congo | 43,198 | 1981 | |
| 62. | Kosovo | 41,068 | 1981 | |
| 63. | Lesotho | 38,900 | 1981 | |
| 64. | Trinidad and Tobago | 37,624 | 1981 | |
| 65. | Namibia | 31,883 | 1981 | |
| 66. | Bahrain | 22,455 | 1981 | |
| 67. | Gabon | 22,408 | 1981 | |
| 68. | Guyana | 21,670 | 1981 | |
| 69. | Guinea-Bissau | 20,640 | 1981 | |
| 70. | Botswana | 20,281 | 1981 | |
| 71. | Bhutan | 18,264 | 1981 | |
| 72. | Swaziland | 16,200 | 1981 | |
| 73. | Djibouti | 12,509 | 1981 | |
| 74. | Suriname | 9,097 | 1981 | |
| 75. | Comoros | 8,584 | 1981 | |
| 76. | Barbados | 7,820 | 1981 | |
| 77. | Brunei | 7,791 | 1981 | |
| 78. | The Bahamas | 6,607 | 1981 | |
| 79. | Solomon Islands | 6,260 | 1981 | |
| 80. | Western Sahara | 4,097 | 1981 | |
| 81. | Vanuatu | 3,832 | 1981 | |
| 82. | Belize | 3,562 | 1981 | |
| 83. | Samoa | 3,433 | 1981 | |
| 84. | Cape Verde | 3,274 | 1981 | |
| 85. | Saint Lucia | 2,738 | 1981 | |
| 86. | Aruba | 2,321 | 1981 | |
| 87. | Grenada | 2,010 | 1981 | |
| 88. | Sao Tome and Principe | 1,845 | 1981 | |
| 89. | Dominica | 1,800 | 1981 | |
| 90. | Seychelles | 1,793 | 1981 | |
| 91. | Saint Kitts and Nevis | 864 | 1981 | |
| 92. | Tuvalu | 188 | 1981 |
