The World: Population - Male - Age 45-49 (1981) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | United States of America | 5,347,990 | 1981 | |
| 2. | Indonesia | 3,253,599 | 1981 | |
| 3. | Brazil | 2,383,108 | 1981 | |
| 4. | Pakistan | 1,801,208 | 1981 | |
| 5. | Bangladesh | 1,675,595 | 1981 | |
| 6. | Nigeria | 1,395,530 | 1981 | |
| 7. | Mexico | 1,169,798 | 1981 | |
| 8. | Turkey | 1,039,713 | 1981 | |
| 9. | Philippines | 895,957 | 1981 | |
| 10. | Argentina | 763,400 | 1981 | |
| 11. | Ethiopia | 682,495 | 1981 | |
| 12. | Myanmar | 664,959 | 1981 | |
| 13. | Democratic Republic of the Congo | 482,979 | 1981 | |
| 14. | Colombia | 466,844 | 1981 | |
| 15. | Peru | 340,989 | 1981 | |
| 16. | Nepal | 326,296 | 1981 | |
| 17. | Sri Lanka | 315,342 | 1981 | |
| 18. | Tanzania | 311,881 | 1981 | |
| 19. | Serbia | 295,667 | 1981 | |
| 20. | Malaysia | 260,771 | 1981 | |
| 21. | Afghanistan | 248,603 | 1981 | |
| 22. | Kenya | 230,781 | 1981 | |
| 23. | Mozambique | 212,832 | 1981 | |
| 24. | Ghana | 198,172 | 1981 | |
| 25. | Uganda | 192,028 | 1981 | |
| 26. | Cote d'Ivoire | 168,666 | 1981 | |
| 27. | Cameroon | 151,817 | 1981 | |
| 28. | Madagascar | 151,085 | 1981 | |
| 29. | Syria | 142,979 | 1981 | |
| 30. | Angola | 128,152 | 1981 | |
| 31. | Mali | 122,936 | 1981 | |
| 32. | Niger | 109,490 | 1981 | |
| 33. | Haiti | 107,903 | 1981 | |
| 34. | Guatemala | 107,683 | 1981 | |
| 35. | Cambodia | 106,017 | 1981 | |
| 36. | Malawi | 104,858 | 1981 | |
| 37. | Burkina Faso | 103,238 | 1981 | |
| 38. | Dominican Republic | 100,968 | 1981 | |
| 39. | Senegal | 92,676 | 1981 | |
| 40. | Somalia | 88,921 | 1981 | |
| 41. | Zambia | 87,944 | 1981 | |
| 42. | Guinea | 78,604 | 1981 | |
| 43. | Chad | 76,377 | 1981 | |
| 44. | Rwanda | 75,425 | 1981 | |
| 45. | Sierra Leone | 70,601 | 1981 | |
| 46. | Burundi | 64,134 | 1981 | |
| 47. | Libya | 62,093 | 1981 | |
| 48. | Papua New Guinea | 60,451 | 1981 | |
| 49. | Paraguay | 54,214 | 1981 | |
| 50. | Lebanon | 52,771 | 1981 | |
| 51. | Honduras | 52,386 | 1981 | |
| 52. | Benin | 51,290 | 1981 | |
| 53. | Eritrea | 48,043 | 1981 | |
| 54. | Central African Republic | 47,700 | 1981 | |
| 55. | Nicaragua | 42,801 | 1981 | |
| 56. | Togo | 42,550 | 1981 | |
| 57. | Jordan | 38,793 | 1981 | |
| 58. | Panama | 37,923 | 1981 | |
| 59. | Liberia | 37,786 | 1981 | |
| 60. | Kosovo | 30,465 | 1981 | |
| 61. | Republic of Congo | 29,273 | 1981 | |
| 62. | Mauritania | 27,742 | 1981 | |
| 63. | Lesotho | 26,605 | 1981 | |
| 64. | Trinidad and Tobago | 20,021 | 1981 | |
| 65. | Namibia | 18,686 | 1981 | |
| 66. | Gabon | 14,598 | 1981 | |
| 67. | Botswana | 13,699 | 1981 | |
| 68. | Guinea-Bissau | 13,138 | 1981 | |
| 69. | Guyana | 12,168 | 1981 | |
| 70. | Bhutan | 11,333 | 1981 | |
| 71. | Swaziland | 10,226 | 1981 | |
| 72. | Bahrain | 8,206 | 1981 | |
| 73. | Suriname | 6,834 | 1981 | |
| 74. | Djibouti | 6,440 | 1981 | |
| 75. | Comoros | 6,086 | 1981 | |
| 76. | Cape Verde | 4,367 | 1981 | |
| 77. | Solomon Islands | 4,091 | 1981 | |
| 78. | Barbados | 4,012 | 1981 | |
| 79. | The Bahamas | 3,874 | 1981 | |
| 80. | Brunei | 3,407 | 1981 | |
| 81. | Samoa | 2,579 | 1981 | |
| 82. | Belize | 2,369 | 1981 | |
| 83. | Western Sahara | 2,322 | 1981 | |
| 84. | Vanuatu | 2,161 | 1981 | |
| 85. | Sao Tome and Principe | 1,849 | 1981 | |
| 86. | Saint Lucia | 1,632 | 1981 | |
| 87. | Aruba | 1,555 | 1981 | |
| 88. | Grenada | 1,300 | 1981 | |
| 89. | Seychelles | 1,276 | 1981 | |
| 90. | Dominica | 1,042 | 1981 | |
| 91. | Saint Kitts and Nevis | 552 | 1981 | |
| 92. | Tuvalu | 140 | 1981 |
