The World: Population - Age 30-34 (2021) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 128. | Liberia | 322,064 | 2021 | |
| 127. | Finland | 322,440 | 2021 | |
| 126. | Bosnia and Herzegovina | 333,896 | 2021 | |
| 125. | Ireland | 334,481 | 2021 | |
| 124. | Mongolia | 340,166 | 2021 | |
| 123. | Denmark | 345,297 | 2021 | |
| 122. | Kuwait | 347,775 | 2021 | |
| 121. | Lebanon | 348,676 | 2021 | |
| 120. | Georgia | 350,948 | 2021 | |
| 119. | Republic of Congo | 364,490 | 2021 | |
| 118. | Oman | 373,920 | 2021 | |
| 117. | Slovakia | 396,954 | 2021 | |
| 116. | Qatar | 401,697 | 2021 | |
| 115. | Costa Rica | 433,271 | 2021 | |
| 114. | Bulgaria | 433,851 | 2021 | |
| 113. | Hong Kong | 443,145 | 2021 | |
| 112. | Central African Republic | 447,972 | 2021 | |
| 111. | Serbia | 459,865 | 2021 | |
| 110. | Sierra Leone | 463,716 | 2021 | |
| 109. | El Salvador | 499,073 | 2021 | |
| 108. | Switzerland | 507,792 | 2021 | |
| 107. | Eritrea | 509,493 | 2021 | |
| 106. | Austria | 514,670 | 2021 | |
| 105. | Turkmenistan | 520,632 | 2021 | |
| 104. | Jordan | 534,707 | 2021 | |
| 103. | Papua New Guinea | 536,816 | 2021 | |
| 102. | Nicaragua | 538,954 | 2021 | |
| 101. | Kyrgyzstan | 564,582 | 2021 | |
| 100. | Israel | 584,514 | 2021 | |
| 99. | Libya | 603,043 | 2021 | |
| 98. | Greece | 612,028 | 2021 | |
| 97. | Laos | 620,221 | 2021 | |
| 96. | Hungary | 624,817 | 2021 | |
| 95. | Paraguay | 630,357 | 2021 | |
| 94. | Togo | 645,139 | 2021 | |
| 93. | Portugal | 650,747 | 2021 | |
| 92. | Belgium | 657,057 | 2021 | |
| 91. | Czech Republic | 657,490 | 2021 | |
| 90. | Sweden | 658,972 | 2021 | |
| 89. | Singapore | 666,053 | 2021 | |
| 88. | Belarus | 747,827 | 2021 | |
| 87. | Honduras | 776,596 | 2021 | |
| 86. | Benin | 804,586 | 2021 | |
| 85. | Somalia | 813,478 | 2021 | |
| 84. | Cuba | 818,326 | 2021 | |
| 83. | Tajikistan | 826,306 | 2021 | |
| 82. | Tunisia | 845,490 | 2021 | |
| 81. | Dominican Republic | 856,754 | 2021 | |
| 80. | Chad | 871,247 | 2021 | |
| 79. | Burundi | 888,409 | 2021 | |
| 78. | Haiti | 891,296 | 2021 | |
| 77. | Guinea | 893,456 | 2021 | |
| 76. | Bolivia | 959,797 | 2021 | |
| 75. | Azerbaijan | 960,430 | 2021 | |
| 74. | United Arab Emirates | 981,900 | 2021 | |
| 73. | Rwanda | 1,066,342 | 2021 | |
| 72. | Netherlands | 1,110,195 | 2021 | |
| 71. | Senegal | 1,120,128 | 2021 | |
| 70. | Mali | 1,140,191 | 2021 | |
| 69. | Zambia | 1,172,011 | 2021 | |
| 68. | Niger | 1,312,148 | 2021 | |
| 67. | Ecuador | 1,342,873 | 2021 | |
| 66. | Guatemala | 1,346,688 | 2021 | |
| 65. | Zimbabwe | 1,388,610 | 2021 | |
| 64. | Malawi | 1,409,087 | 2021 | |
| 63. | Chile | 1,422,352 | 2021 | |
| 62. | Burkina Faso | 1,432,911 | 2021 | |
| 61. | Angola | 1,485,676 | 2021 | |
| 60. | Sri Lanka | 1,576,412 | 2021 | |
| 59. | Taiwan | 1,579,498 | 2021 | |
| 58. | Romania | 1,609,252 | 2021 | |
| 57. | Cambodia | 1,629,330 | 2021 | |
| 56. | Kazakhstan | 1,673,548 | 2021 | |
| 55. | Australia | 1,721,317 | 2021 | |
| 54. | Cameroon | 1,801,406 | 2021 | |
| 53. | Mozambique | 1,818,676 | 2021 | |
| 52. | North Korea | 1,925,603 | 2021 | |
| 51. | Madagascar | 1,951,114 | 2021 | |
| 50. | Cote d'Ivoire | 2,045,729 | 2021 | |
| 49. | Syria | 2,164,145 | 2021 | |
| 48. | Yemen | 2,333,090 | 2021 | |
| 47. | Malaysia | 2,401,965 | 2021 | |
| 46. | Venezuela | 2,412,723 | 2021 | |
| 45. | Ghana | 2,434,767 | 2021 | |
| 44. | Canada | 2,444,977 | 2021 | |
| 43. | Peru | 2,555,916 | 2021 | |
| 42. | Afghanistan | 2,617,215 | 2021 | |
| 41. | Poland | 2,681,961 | 2021 | |
| 40. | Morocco | 2,833,042 | 2021 | |
| 39. | Iraq | 2,904,501 | 2021 | |
| 38. | Uganda | 2,973,363 | 2021 | |
| 37. | Spain | 3,001,403 | 2021 | |
| 36. | Nepal | 3,011,802 | 2021 | |
| 35. | Uzbekistan | 3,023,305 | 2021 | |
| 34. | South Korea | 3,101,913 | 2021 | |
| 33. | Saudi Arabia | 3,232,558 | 2021 | |
| 32. | Argentina | 3,329,617 | 2021 | |
| 31. | Ukraine | 3,329,674 | 2021 | |
| 30. | Italy | 3,532,437 | 2021 | |
| 29. | Algeria | 3,536,187 | 2021 |
