The World: Population - Age 35-39 (1980) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | United States of America | 14,076,734 | 1980 | |
| 2. | Indonesia | 8,103,671 | 1980 | |
| 3. | Brazil | 6,621,222 | 1980 | |
| 4. | Nigeria | 3,873,451 | 1980 | |
| 5. | Mexico | 3,359,445 | 1980 | |
| 6. | Philippines | 2,552,988 | 1980 | |
| 7. | Turkey | 2,189,916 | 1980 | |
| 8. | Ethiopia | 1,860,529 | 1980 | |
| 9. | Argentina | 1,737,576 | 1980 | |
| 10. | Myanmar | 1,693,194 | 1980 | |
| 11. | Democratic Republic of the Congo | 1,488,518 | 1980 | |
| 12. | Colombia | 1,285,815 | 1980 | |
| 13. | Tanzania | 884,363 | 1980 | |
| 14. | Nepal | 800,397 | 1980 | |
| 15. | Afghanistan | 786,065 | 1980 | |
| 16. | Malaysia | 704,464 | 1980 | |
| 17. | Kenya | 658,262 | 1980 | |
| 18. | Mozambique | 633,565 | 1980 | |
| 19. | Uganda | 519,909 | 1980 | |
| 20. | Ghana | 495,559 | 1980 | |
| 21. | Cote d'Ivoire | 461,773 | 1980 | |
| 22. | Cameroon | 440,879 | 1980 | |
| 23. | Madagascar | 381,218 | 1980 | |
| 24. | Angola | 373,016 | 1980 | |
| 25. | Mali | 363,350 | 1980 | |
| 26. | Cambodia | 323,743 | 1980 | |
| 27. | Niger | 310,397 | 1980 | |
| 28. | Malawi | 309,514 | 1980 | |
| 29. | Haiti | 302,617 | 1980 | |
| 30. | Burkina Faso | 297,561 | 1980 | |
| 31. | Dominican Republic | 276,485 | 1980 | |
| 32. | Senegal | 268,550 | 1980 | |
| 33. | Zambia | 265,588 | 1980 | |
| 34. | Somalia | 256,868 | 1980 | |
| 35. | Guinea | 237,050 | 1980 | |
| 36. | Chad | 234,104 | 1980 | |
| 37. | Sierra Leone | 195,157 | 1980 | |
| 38. | Rwanda | 192,161 | 1980 | |
| 39. | Burundi | 176,728 | 1980 | |
| 40. | Benin | 165,873 | 1980 | |
| 41. | Paraguay | 155,294 | 1980 | |
| 42. | Honduras | 147,127 | 1980 | |
| 43. | Papua New Guinea | 140,838 | 1980 | |
| 44. | Libya | 139,868 | 1980 | |
| 45. | Eritrea | 139,045 | 1980 | |
| 46. | Lebanon | 124,646 | 1980 | |
| 47. | Central African Republic | 123,891 | 1980 | |
| 48. | Nicaragua | 119,935 | 1980 | |
| 49. | Panama | 105,915 | 1980 | |
| 50. | Liberia | 101,586 | 1980 | |
| 51. | Jordan | 97,733 | 1980 | |
| 52. | Mauritania | 75,958 | 1980 | |
| 53. | Republic of Congo | 71,364 | 1980 | |
| 54. | Lesotho | 62,315 | 1980 | |
| 55. | Trinidad and Tobago | 57,032 | 1980 | |
| 56. | Namibia | 53,133 | 1980 | |
| 57. | Guinea-Bissau | 39,931 | 1980 | |
| 58. | Gabon | 37,052 | 1980 | |
| 59. | Guyana | 34,236 | 1980 | |
| 60. | Bhutan | 29,131 | 1980 | |
| 61. | Swaziland | 28,331 | 1980 | |
| 62. | Djibouti | 18,443 | 1980 | |
| 63. | Comoros | 15,585 | 1980 | |
| 64. | Suriname | 15,481 | 1980 | |
| 65. | Barbados | 12,311 | 1980 | |
| 66. | The Bahamas | 11,165 | 1980 | |
| 67. | Solomon Islands | 10,943 | 1980 | |
| 68. | Cape Verde | 7,855 | 1980 | |
| 69. | Western Sahara | 6,009 | 1980 | |
| 70. | Vanuatu | 5,845 | 1980 | |
| 71. | Belize | 5,387 | 1980 | |
| 72. | Saint Lucia | 4,414 | 1980 | |
| 73. | Seychelles | 2,773 | 1980 | |
| 74. | Saint Kitts and Nevis | 1,300 | 1980 | |
| 75. | Tuvalu | 362 | 1980 |
