The World: Population - Age 20-24 (2021) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 128. | Finland | 294,742 | 2021 | |
| 127. | Bulgaria | 299,461 | 2021 | |
| 126. | New Zealand | 300,277 | 2021 | |
| 125. | Jamaica | 305,450 | 2021 | |
| 124. | Lebanon | 305,591 | 2021 | |
| 123. | West Bank | 307,907 | 2021 | |
| 122. | Ireland | 308,777 | 2021 | |
| 121. | Hong Kong | 309,881 | 2021 | |
| 120. | Norway | 313,036 | 2021 | |
| 119. | Panama | 326,098 | 2021 | |
| 118. | Oman | 332,457 | 2021 | |
| 117. | Denmark | 367,443 | 2021 | |
| 116. | Mauritania | 379,105 | 2021 | |
| 115. | Serbia | 380,038 | 2021 | |
| 114. | Costa Rica | 398,602 | 2021 | |
| 113. | Switzerland | 437,417 | 2021 | |
| 112. | Austria | 441,099 | 2021 | |
| 111. | Belarus | 456,243 | 2021 | |
| 110. | Turkmenistan | 459,017 | 2021 | |
| 109. | Czech Republic | 459,634 | 2021 | |
| 108. | Liberia | 480,092 | 2021 | |
| 107. | Sweden | 488,195 | 2021 | |
| 106. | Kyrgyzstan | 490,384 | 2021 | |
| 105. | Hungary | 508,479 | 2021 | |
| 104. | Greece | 525,459 | 2021 | |
| 103. | Republic of Congo | 541,420 | 2021 | |
| 102. | United Arab Emirates | 542,736 | 2021 | |
| 101. | Singapore | 555,465 | 2021 | |
| 100. | Central African Republic | 570,136 | 2021 | |
| 99. | Sierra Leone | 581,164 | 2021 | |
| 98. | El Salvador | 589,164 | 2021 | |
| 97. | Belgium | 590,738 | 2021 | |
| 96. | Nicaragua | 608,254 | 2021 | |
| 95. | Portugal | 627,349 | 2021 | |
| 94. | Jordan | 637,752 | 2021 | |
| 93. | Paraguay | 646,656 | 2021 | |
| 92. | Libya | 651,869 | 2021 | |
| 91. | Israel | 662,560 | 2021 | |
| 90. | Azerbaijan | 675,586 | 2021 | |
| 89. | Cuba | 698,461 | 2021 | |
| 88. | Papua New Guinea | 708,164 | 2021 | |
| 87. | Eritrea | 737,539 | 2021 | |
| 86. | Tunisia | 744,867 | 2021 | |
| 85. | Laos | 767,326 | 2021 | |
| 84. | Togo | 777,018 | 2021 | |
| 83. | Tajikistan | 798,907 | 2021 | |
| 82. | Honduras | 962,239 | 2021 | |
| 81. | Dominican Republic | 976,581 | 2021 | |
| 80. | Netherlands | 1,059,038 | 2021 | |
| 79. | Bolivia | 1,090,788 | 2021 | |
| 78. | Somalia | 1,107,259 | 2021 | |
| 77. | Haiti | 1,119,167 | 2021 | |
| 76. | Romania | 1,130,160 | 2021 | |
| 75. | Benin | 1,173,008 | 2021 | |
| 74. | Kazakhstan | 1,190,738 | 2021 | |
| 73. | Guinea | 1,269,531 | 2021 | |
| 72. | Burundi | 1,284,491 | 2021 | |
| 71. | Chad | 1,311,197 | 2021 | |
| 70. | Chile | 1,313,931 | 2021 | |
| 69. | Rwanda | 1,358,892 | 2021 | |
| 68. | Cambodia | 1,410,579 | 2021 | |
| 67. | Taiwan | 1,457,599 | 2021 | |
| 66. | Ecuador | 1,512,550 | 2021 | |
| 65. | Senegal | 1,518,465 | 2021 | |
| 64. | Australia | 1,539,860 | 2021 | |
| 63. | Zimbabwe | 1,560,497 | 2021 | |
| 62. | Sri Lanka | 1,594,638 | 2021 | |
| 61. | Guatemala | 1,666,405 | 2021 | |
| 60. | Zambia | 1,707,163 | 2021 | |
| 59. | Mali | 1,707,173 | 2021 | |
| 58. | Poland | 1,898,757 | 2021 | |
| 57. | North Korea | 1,911,567 | 2021 | |
| 56. | Ukraine | 1,987,042 | 2021 | |
| 55. | Malawi | 2,004,480 | 2021 | |
| 54. | Burkina Faso | 2,084,058 | 2021 | |
| 53. | Canada | 2,085,494 | 2021 | |
| 52. | Niger | 2,103,555 | 2021 | |
| 51. | Angola | 2,240,628 | 2021 | |
| 50. | Cameroon | 2,290,079 | 2021 | |
| 49. | Syria | 2,361,177 | 2021 | |
| 48. | Spain | 2,467,122 | 2021 | |
| 47. | Uzbekistan | 2,572,059 | 2021 | |
| 46. | Cote d'Ivoire | 2,595,866 | 2021 | |
| 45. | Madagascar | 2,647,511 | 2021 | |
| 44. | Malaysia | 2,648,623 | 2021 | |
| 43. | Ghana | 2,707,409 | 2021 | |
| 42. | Venezuela | 2,733,448 | 2021 | |
| 41. | Peru | 2,748,111 | 2021 | |
| 40. | Saudi Arabia | 2,788,157 | 2021 | |
| 39. | Morocco | 2,843,907 | 2021 | |
| 38. | Algeria | 2,888,786 | 2021 | |
| 37. | Mozambique | 2,947,990 | 2021 | |
| 36. | Italy | 3,041,512 | 2021 | |
| 35. | Yemen | 3,071,349 | 2021 | |
| 34. | South Korea | 3,108,010 | 2021 | |
| 33. | Argentina | 3,417,375 | 2021 | |
| 32. | Iraq | 3,521,064 | 2021 | |
| 31. | Nepal | 3,573,672 | 2021 | |
| 30. | United Kingdom | 3,905,818 | 2021 | |
| 29. | Afghanistan | 3,990,480 | 2021 |
