The World: Population - Age 25-29 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 97. | Jordan | 610,393 | 2020 | |
| 63. | Kazakhstan | 1,549,496 | 2020 | |
| 27. | Kenya | 4,010,522 | 2020 | |
| 189. | Kiribati | 10,276 | 2020 | |
| 148. | Kosovo | 156,241 | 2020 | |
| 120. | Kuwait | 343,857 | 2020 | |
| 106. | Kyrgyzstan | 554,772 | 2020 | |
| 89. | Laos | 690,462 | 2020 | |
| 153. | Latvia | 128,620 | 2020 | |
| 121. | Lebanon | 339,442 | 2020 | |
| 146. | Lesotho | 179,544 | 2020 | |
| 131. | Liberia | 299,676 | 2020 | |
| 103. | Libya | 593,463 | 2020 | |
| 216. | Liechtenstein | 2,389 | 2020 | |
| 142. | Lithuania | 233,126 | 2020 | |
| 173. | Luxembourg | 38,484 | 2020 | |
| 170. | Macau | 46,501 | 2020 | |
| 152. | Macedonia | 147,448 | 2020 | |
| 50. | Madagascar | 2,256,299 | 2020 | |
| 59. | Malawi | 1,638,724 | 2020 | |
| 46. | Malaysia | 2,509,470 | 2020 | |
| 171. | Maldives | 46,175 | 2020 | |
| 69. | Mali | 1,327,604 | 2020 | |
| 177. | Malta | 26,697 | 2020 | |
| 202. | Marshall Islands | 5,195 | 2020 | |
| 123. | Mauritania | 325,453 | 2020 | |
| 156. | Mauritius | 106,807 | 2020 | |
| 186. | Mayotte | 14,948 | 2020 | |
| 9. | Mexico | 10,033,324 | 2020 | |
| 141. | Moldova | 236,931 | 2020 | |
| 219. | Monaco | 1,342 | 2020 | |
| 132. | Mongolia | 297,854 | 2020 | |
| 174. | Montenegro | 35,631 | 2020 | |
| 227. | Montserrat | 358 | 2020 | |
| 40. | Morocco | 2,782,250 | 2020 | |
| 49. | Mozambique | 2,373,265 | 2020 | |
| 20. | Myanmar | 5,063,099 | 2020 | |
| 140. | Namibia | 240,729 | 2020 | |
| 223. | Nauru | 716 | 2020 | |
| 31. | Nepal | 3,447,374 | 2020 | |
| 72. | Netherlands | 1,106,109 | 2020 | |
| 188. | Netherlands Antilles | 11,196 | 2020 | |
| 179. | New Caledonia | 23,693 | 2020 | |
| 127. | New Zealand | 308,092 | 2020 | |
| 92. | Nicaragua | 645,343 | 2020 | |
| 62. | Niger | 1,569,943 | 2020 | |
| 7. | Nigeria | 15,867,118 | 2020 | |
| 53. | North Korea | 2,049,859 | 2020 | |
| 211. | Northern Mariana Islands | 3,554 | 2020 | |
| 124. | Norway | 324,177 | 2020 | |
| 117. | Oman | 373,878 | 2020 | |
| 5. | Pakistan | 20,306,532 | 2020 | |
| 217. | Palau | 1,947 | 2020 | |
| 130. | Panama | 301,278 | 2020 | |
| 96. | Papua New Guinea | 611,001 | 2020 | |
| 90. | Paraguay | 681,136 | 2020 | |
| 39. | Peru | 2,844,794 | 2020 | |
| 10. | Philippines | 9,761,588 | 2020 | |
| 48. | Poland | 2,412,656 | 2020 | |
| 95. | Portugal | 628,696 | 2020 | |
| 138. | Puerto Rico | 260,193 | 2020 | |
| 125. | Qatar | 321,388 | 2020 | |
| 112. | Republic of Congo | 437,416 | 2020 | |
| 71. | Romania | 1,224,252 | 2020 | |
| 14. | Russia | 7,736,651 | 2020 | |
| 74. | Rwanda | 1,037,708 | 2020 | |
| 225. | Saint Barthélemy | 512 | 2020 | |
| 226. | Saint Helena | 451 | 2020 | |
| 210. | Saint Kitts and Nevis | 3,779 | 2020 | |
| 187. | Saint Lucia | 12,277 | 2020 | |
| 215. | Saint Martin | 2,458 | 2020 | |
| 228. | Saint Pierre and Miquelon | 190 | 2020 | |
| 195. | Saint Vincent and the Grenadines | 7,524 | 2020 | |
| 183. | Samoa | 17,685 | 2020 | |
| 218. | San Marino | 1,873 | 2020 | |
| 185. | Sao Tome and Principe | 15,527 | 2020 | |
| 36. | Saudi Arabia | 3,089,250 | 2020 | |
| 70. | Senegal | 1,281,570 | 2020 | |
| 113. | Serbia | 431,681 | 2020 | |
| 198. | Seychelles | 7,122 | 2020 | |
| 109. | Sierra Leone | 500,579 | 2020 | |
| 91. | Singapore | 656,044 | 2020 | |
| 212. | Sint Maarten | 3,167 | 2020 | |
| 118. | Slovakia | 359,117 | 2020 | |
| 157. | Slovenia | 102,579 | 2020 | |
| 166. | Solomon Islands | 58,259 | 2020 | |
| 85. | Somalia | 844,146 | 2020 | |
| 21. | South Africa | 4,712,663 | 2020 | |
| 32. | South Korea | 3,422,886 | 2020 | |
| 43. | Spain | 2,634,015 | 2020 | |
| 58. | Sri Lanka | 1,640,505 | 2020 | |
| 22. | Sudan | 4,708,456 | 2020 | |
| 169. | Suriname | 47,828 | 2020 | |
| 150. | Swaziland | 151,921 | 2020 | |
| 94. | Sweden | 639,696 | 2020 | |
| 111. | Switzerland | 491,671 | 2020 | |
| 52. | Syria | 2,177,756 | 2020 | |
| 61. | Taiwan | 1,587,888 | 2020 | |
| 86. | Tajikistan | 800,654 | 2020 | |
| 23. | Tanzania | 4,554,782 | 2020 |
