The World: Population - Age 25-29 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 128. | Jamaica | 308,070 | 2020 | |
| 127. | New Zealand | 308,092 | 2020 | |
| 126. | Georgia | 312,834 | 2020 | |
| 125. | Qatar | 321,388 | 2020 | |
| 124. | Norway | 324,177 | 2020 | |
| 123. | Mauritania | 325,453 | 2020 | |
| 122. | Finland | 331,734 | 2020 | |
| 121. | Lebanon | 339,442 | 2020 | |
| 120. | Kuwait | 343,857 | 2020 | |
| 119. | Bulgaria | 352,121 | 2020 | |
| 118. | Slovakia | 359,117 | 2020 | |
| 117. | Oman | 373,878 | 2020 | |
| 116. | Denmark | 379,155 | 2020 | |
| 115. | Hong Kong | 423,562 | 2020 | |
| 114. | Costa Rica | 423,899 | 2020 | |
| 113. | Serbia | 431,681 | 2020 | |
| 112. | Republic of Congo | 437,416 | 2020 | |
| 111. | Switzerland | 491,671 | 2020 | |
| 110. | Central African Republic | 497,259 | 2020 | |
| 109. | Sierra Leone | 500,579 | 2020 | |
| 108. | Austria | 516,918 | 2020 | |
| 107. | Turkmenistan | 534,223 | 2020 | |
| 106. | Kyrgyzstan | 554,772 | 2020 | |
| 105. | Greece | 562,052 | 2020 | |
| 104. | El Salvador | 567,436 | 2020 | |
| 103. | Libya | 593,463 | 2020 | |
| 102. | Belarus | 597,973 | 2020 | |
| 101. | Eritrea | 598,014 | 2020 | |
| 100. | Czech Republic | 598,552 | 2020 | |
| 99. | Israel | 605,184 | 2020 | |
| 98. | Hungary | 607,659 | 2020 | |
| 97. | Jordan | 610,393 | 2020 | |
| 96. | Papua New Guinea | 611,001 | 2020 | |
| 95. | Portugal | 628,696 | 2020 | |
| 94. | Sweden | 639,696 | 2020 | |
| 93. | Belgium | 643,008 | 2020 | |
| 92. | Nicaragua | 645,343 | 2020 | |
| 91. | Singapore | 656,044 | 2020 | |
| 90. | Paraguay | 681,136 | 2020 | |
| 89. | Laos | 690,462 | 2020 | |
| 88. | Togo | 700,570 | 2020 | |
| 87. | Cuba | 731,366 | 2020 | |
| 86. | Tajikistan | 800,654 | 2020 | |
| 85. | Somalia | 844,146 | 2020 | |
| 84. | Tunisia | 854,110 | 2020 | |
| 83. | Honduras | 864,033 | 2020 | |
| 82. | Dominican Republic | 916,823 | 2020 | |
| 81. | United Arab Emirates | 926,185 | 2020 | |
| 80. | Azerbaijan | 927,568 | 2020 | |
| 79. | Benin | 943,946 | 2020 | |
| 78. | Haiti | 1,012,289 | 2020 | |
| 77. | Burundi | 1,014,291 | 2020 | |
| 76. | Bolivia | 1,017,415 | 2020 | |
| 75. | Guinea | 1,033,532 | 2020 | |
| 74. | Rwanda | 1,037,708 | 2020 | |
| 73. | Chad | 1,038,547 | 2020 | |
| 72. | Netherlands | 1,106,109 | 2020 | |
| 71. | Romania | 1,224,252 | 2020 | |
| 70. | Senegal | 1,281,570 | 2020 | |
| 69. | Mali | 1,327,604 | 2020 | |
| 68. | Zambia | 1,382,505 | 2020 | |
| 67. | Ecuador | 1,415,380 | 2020 | |
| 66. | Chile | 1,427,770 | 2020 | |
| 65. | Zimbabwe | 1,460,587 | 2020 | |
| 64. | Guatemala | 1,536,580 | 2020 | |
| 63. | Kazakhstan | 1,549,496 | 2020 | |
| 62. | Niger | 1,569,943 | 2020 | |
| 61. | Taiwan | 1,587,888 | 2020 | |
| 60. | Cambodia | 1,629,403 | 2020 | |
| 59. | Malawi | 1,638,724 | 2020 | |
| 58. | Sri Lanka | 1,640,505 | 2020 | |
| 57. | Burkina Faso | 1,701,243 | 2020 | |
| 56. | Australia | 1,707,146 | 2020 | |
| 55. | Angola | 1,772,118 | 2020 | |
| 54. | Cameroon | 1,989,152 | 2020 | |
| 53. | North Korea | 2,049,859 | 2020 | |
| 52. | Syria | 2,177,756 | 2020 | |
| 51. | Cote d'Ivoire | 2,250,367 | 2020 | |
| 50. | Madagascar | 2,256,299 | 2020 | |
| 49. | Mozambique | 2,373,265 | 2020 | |
| 48. | Poland | 2,412,656 | 2020 | |
| 47. | Canada | 2,417,255 | 2020 | |
| 46. | Malaysia | 2,509,470 | 2020 | |
| 45. | Ghana | 2,586,824 | 2020 | |
| 44. | Yemen | 2,590,474 | 2020 | |
| 43. | Spain | 2,634,015 | 2020 | |
| 42. | Ukraine | 2,700,410 | 2020 | |
| 41. | Venezuela | 2,714,387 | 2020 | |
| 40. | Morocco | 2,782,250 | 2020 | |
| 39. | Peru | 2,844,794 | 2020 | |
| 38. | Iraq | 3,027,924 | 2020 | |
| 37. | Uzbekistan | 3,074,395 | 2020 | |
| 36. | Saudi Arabia | 3,089,250 | 2020 | |
| 35. | Afghanistan | 3,178,442 | 2020 | |
| 34. | Italy | 3,315,948 | 2020 | |
| 33. | Argentina | 3,357,178 | 2020 | |
| 32. | South Korea | 3,422,886 | 2020 | |
| 31. | Nepal | 3,447,374 | 2020 | |
| 30. | Algeria | 3,565,026 | 2020 | |
| 29. | Uganda | 3,669,623 | 2020 |
