The World: Population - Age 100+ (1981) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | United States of America | 17,091 | 1981 | |
| 2. | Mexico | 4,337 | 1981 | |
| 3. | Argentina | 421 | 1981 | |
| 4. | Indonesia | 164 | 1981 | |
| 5. | Turkey | 157 | 1981 | |
| 6. | Brazil | 144 | 1981 | |
| 7. | Philippines | 127 | 1981 | |
| 8. | Serbia | 117 | 1981 | |
| 9. | Bangladesh | 113 | 1981 | |
| 10. | Kosovo | 86 | 1981 | |
| 11. | Pakistan | 86 | 1981 | |
| 12. | Sri Lanka | 52 | 1981 | |
| 13. | Zambia | 49 | 1981 | |
| 14. | Tanzania | 38 | 1981 | |
| 15. | Kenya | 32 | 1981 | |
| 16. | Togo | 31 | 1981 | |
| 17. | Colombia | 28 | 1981 | |
| 18. | Guatemala | 27 | 1981 | |
| 19. | Nigeria | 26 | 1981 | |
| 20. | Myanmar | 23 | 1981 | |
| 21. | Syria | 21 | 1981 | |
| 22. | Paraguay | 20 | 1981 | |
| 23. | Peru | 19 | 1981 | |
| 24. | Malaysia | 18 | 1981 | |
| 25. | Somalia | 13 | 1981 | |
| 26. | Lesotho | 12 | 1981 | |
| 27. | Ethiopia | 12 | 1981 | |
| 28. | Botswana | 12 | 1981 | |
| 29. | Burundi | 11 | 1981 | |
| 30. | Lebanon | 11 | 1981 | |
| 31. | Dominican Republic | 10 | 1981 | |
| 32. | Panama | 10 | 1981 | |
| 33. | Democratic Republic of the Congo | 10 | 1981 | |
| 34. | Nepal | 10 | 1981 | |
| 35. | Sierra Leone | 9 | 1981 | |
| 36. | Ghana | 9 | 1981 | |
| 37. | Jordan | 9 | 1981 | |
| 38. | Barbados | 8 | 1981 | |
| 39. | Madagascar | 8 | 1981 | |
| 40. | Libya | 8 | 1981 | |
| 41. | Cameroon | 7 | 1981 | |
| 42. | Burkina Faso | 7 | 1981 | |
| 43. | Trinidad and Tobago | 6 | 1981 | |
| 44. | Uganda | 5 | 1981 | |
| 45. | Mozambique | 4 | 1981 | |
| 46. | Cote d'Ivoire | 4 | 1981 | |
| 47. | Eritrea | 4 | 1981 | |
| 48. | Honduras | 4 | 1981 | |
| 49. | Malawi | 3 | 1981 | |
| 50. | Mali | 3 | 1981 | |
| 51. | Swaziland | 3 | 1981 | |
| 52. | Benin | 3 | 1981 | |
| 53. | Afghanistan | 3 | 1981 | |
| 54. | Namibia | 3 | 1981 | |
| 55. | Guyana | 2 | 1981 | |
| 56. | Comoros | 2 | 1981 | |
| 57. | Republic of Congo | 2 | 1981 | |
| 58. | Rwanda | 2 | 1981 | |
| 59. | Dominica | 2 | 1981 | |
| 60. | Liberia | 2 | 1981 | |
| 61. | Senegal | 2 | 1981 | |
| 62. | Angola | 2 | 1981 | |
| 63. | Haiti | 2 | 1981 | |
| 64. | Guinea-Bissau | 2 | 1981 | |
| 65. | Aruba | 2 | 1981 | |
| 66. | Nicaragua | 2 | 1981 | |
| 67. | The Bahamas | 1 | 1981 | |
| 68. | Suriname | 1 | 1981 | |
| 69. | Cambodia | 1 | 1981 | |
| 70. | Solomon Islands | 1 | 1981 | |
| 71. | Cape Verde | 1 | 1981 | |
| 72. | Bhutan | 1 | 1981 | |
| 73. | Grenada | 1 | 1981 | |
| 74. | Gabon | 1 | 1981 | |
| 75. | Guinea | 1 | 1981 | |
| 76. | Saint Kitts and Nevis | 1 | 1981 | |
| 77. | Mauritania | 1 | 1981 | |
| 78. | Saint Lucia | 1 | 1981 | |
| 79. | Chad | 1 | 1981 | |
| 80. | Vanuatu | 0 | 1981 | |
| 81. | Tuvalu | 0 | 1981 | |
| 82. | Western Sahara | 0 | 1981 | |
| 83. | Bahrain | 0 | 1981 | |
| 84. | Central African Republic | 0 | 1981 | |
| 85. | Belize | 0 | 1981 | |
| 86. | Niger | 0 | 1981 | |
| 87. | Papua New Guinea | 0 | 1981 | |
| 88. | Djibouti | 0 | 1981 | |
| 89. | Brunei | 0 | 1981 | |
| 90. | Sao Tome and Principe | 0 | 1981 | |
| 91. | Seychelles | 0 | 1981 | |
| 92. | Samoa | 0 | 1981 |
