The World: Population - Age 80-84 (1981) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | United States of America | 3,023,581 | 1981 | |
| 2. | Indonesia | 459,542 | 1981 | |
| 3. | Brazil | 328,457 | 1981 | |
| 4. | Mexico | 294,408 | 1981 | |
| 5. | Pakistan | 256,651 | 1981 | |
| 6. | Argentina | 253,726 | 1981 | |
| 7. | Bangladesh | 230,937 | 1981 | |
| 8. | Turkey | 197,469 | 1981 | |
| 9. | Philippines | 186,461 | 1981 | |
| 10. | Nigeria | 127,817 | 1981 | |
| 11. | Myanmar | 95,624 | 1981 | |
| 12. | Serbia | 80,434 | 1981 | |
| 13. | Tanzania | 74,196 | 1981 | |
| 14. | Ethiopia | 66,690 | 1981 | |
| 15. | Colombia | 66,344 | 1981 | |
| 16. | Sri Lanka | 62,138 | 1981 | |
| 17. | Democratic Republic of the Congo | 56,051 | 1981 | |
| 18. | Kenya | 50,425 | 1981 | |
| 19. | Peru | 50,131 | 1981 | |
| 20. | Malaysia | 42,708 | 1981 | |
| 21. | Nepal | 38,000 | 1981 | |
| 22. | Syria | 32,096 | 1981 | |
| 23. | Uganda | 26,345 | 1981 | |
| 24. | Ghana | 25,131 | 1981 | |
| 25. | Madagascar | 25,048 | 1981 | |
| 26. | Guatemala | 23,435 | 1981 | |
| 27. | Mozambique | 21,323 | 1981 | |
| 28. | Burkina Faso | 20,647 | 1981 | |
| 29. | Afghanistan | 19,421 | 1981 | |
| 30. | Burundi | 18,940 | 1981 | |
| 31. | Cameroon | 18,918 | 1981 | |
| 32. | Somalia | 17,893 | 1981 | |
| 33. | Mali | 17,160 | 1981 | |
| 34. | Dominican Republic | 15,563 | 1981 | |
| 35. | Sierra Leone | 15,324 | 1981 | |
| 36. | Paraguay | 14,441 | 1981 | |
| 37. | Lebanon | 13,112 | 1981 | |
| 38. | Cote d'Ivoire | 12,640 | 1981 | |
| 39. | Haiti | 12,589 | 1981 | |
| 40. | Libya | 10,673 | 1981 | |
| 41. | Angola | 10,488 | 1981 | |
| 42. | Senegal | 10,212 | 1981 | |
| 43. | Benin | 10,080 | 1981 | |
| 44. | Zambia | 9,506 | 1981 | |
| 45. | Rwanda | 9,493 | 1981 | |
| 46. | Eritrea | 9,141 | 1981 | |
| 47. | Panama | 8,581 | 1981 | |
| 48. | Malawi | 8,127 | 1981 | |
| 49. | Guinea | 7,965 | 1981 | |
| 50. | Cambodia | 7,774 | 1981 | |
| 51. | Honduras | 7,723 | 1981 | |
| 52. | Lesotho | 7,584 | 1981 | |
| 53. | Chad | 7,328 | 1981 | |
| 54. | Jordan | 7,039 | 1981 | |
| 55. | Kosovo | 6,715 | 1981 | |
| 56. | Botswana | 6,626 | 1981 | |
| 57. | Niger | 6,450 | 1981 | |
| 58. | Trinidad and Tobago | 5,517 | 1981 | |
| 59. | Mauritania | 5,195 | 1981 | |
| 60. | Nicaragua | 5,153 | 1981 | |
| 61. | Namibia | 5,043 | 1981 | |
| 62. | Liberia | 4,505 | 1981 | |
| 63. | Guinea-Bissau | 4,330 | 1981 | |
| 64. | Togo | 4,325 | 1981 | |
| 65. | Republic of Congo | 3,813 | 1981 | |
| 66. | Barbados | 3,280 | 1981 | |
| 67. | Central African Republic | 2,984 | 1981 | |
| 68. | Gabon | 2,848 | 1981 | |
| 69. | Guyana | 2,618 | 1981 | |
| 70. | Comoros | 2,045 | 1981 | |
| 71. | Cape Verde | 1,930 | 1981 | |
| 72. | Papua New Guinea | 1,838 | 1981 | |
| 73. | Swaziland | 1,753 | 1981 | |
| 74. | Suriname | 1,636 | 1981 | |
| 75. | Saint Lucia | 887 | 1981 | |
| 76. | Bhutan | 852 | 1981 | |
| 77. | The Bahamas | 800 | 1981 | |
| 78. | Grenada | 795 | 1981 | |
| 79. | Bahrain | 750 | 1981 | |
| 80. | Solomon Islands | 709 | 1981 | |
| 81. | Belize | 702 | 1981 | |
| 82. | Djibouti | 701 | 1981 | |
| 83. | Dominica | 618 | 1981 | |
| 84. | Sao Tome and Principe | 527 | 1981 | |
| 85. | Brunei | 522 | 1981 | |
| 86. | Samoa | 484 | 1981 | |
| 87. | Aruba | 454 | 1981 | |
| 88. | Saint Kitts and Nevis | 416 | 1981 | |
| 89. | Seychelles | 416 | 1981 | |
| 90. | Western Sahara | 383 | 1981 | |
| 91. | Vanuatu | 318 | 1981 | |
| 92. | Tuvalu | 21 | 1981 |
