The World: Population - Age 20-24 (2015) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 185. | Mayotte | 16,450 | 2015 | |
| 155. | Mauritius | 107,200 | 2015 | |
| 120. | Mauritania | 334,407 | 2015 | |
| 201. | Marshall Islands | 5,323 | 2015 | |
| 177. | Malta | 26,622 | 2015 | |
| 69. | Mali | 1,371,342 | 2015 | |
| 169. | Maldives | 50,918 | 2015 | |
| 45. | Malaysia | 2,521,072 | 2015 | |
| 57. | Malawi | 1,677,237 | 2015 | |
| 51. | Madagascar | 2,287,305 | 2015 | |
| 151. | Macedonia | 148,212 | 2015 | |
| 171. | Macau | 44,803 | 2015 | |
| 175. | Luxembourg | 33,943 | 2015 | |
| 141. | Lithuania | 236,579 | 2015 | |
| 215. | Liechtenstein | 2,222 | 2015 | |
| 101. | Libya | 594,720 | 2015 | |
| 127. | Liberia | 305,312 | 2015 | |
| 145. | Lesotho | 191,347 | 2015 | |
| 119. | Lebanon | 357,299 | 2015 | |
| 152. | Latvia | 131,572 | 2015 | |
| 88. | Laos | 706,002 | 2015 | |
| 104. | Kyrgyzstan | 568,735 | 2015 | |
| 140. | Kuwait | 248,648 | 2015 | |
| 148. | Kosovo | 163,446 | 2015 | |
| 189. | Kiribati | 10,525 | 2015 | |
| 27. | Kenya | 4,076,291 | 2015 | |
| 64. | Kazakhstan | 1,557,400 | 2015 | |
| 91. | Jordan | 633,074 | 2015 | |
| 18. | Japan | 6,132,368 | 2015 | |
| 125. | Jamaica | 318,085 | 2015 | |
| 35. | Italy | 3,140,358 | 2015 | |
| 100. | Israel | 601,367 | 2015 | |
| 202. | Isle of Man | 5,282 | 2015 | |
| 132. | Ireland | 285,493 | 2015 | |
| 37. | Iraq | 3,043,335 | 2015 | |
| 13. | Iran | 8,241,794 | 2015 | |
| 4. | Indonesia | 21,189,508 | 2015 | |
| 1. | India | 110,070,048 | 2015 | |
| 179. | Iceland | 23,462 | 2015 | |
| 97. | Hungary | 610,328 | 2015 | |
| 115. | Hong Kong | 405,983 | 2015 | |
| 84. | Honduras | 883,041 | 2015 | |
| 76. | Haiti | 1,041,905 | 2015 | |
| 162. | Guyana | 73,020 | 2015 | |
| 147. | Guinea-Bissau | 163,752 | 2015 | |
| 74. | Guinea | 1,054,453 | 2015 | |
| 205. | Guernsey | 4,161 | 2015 | |
| 63. | Guatemala | 1,578,528 | 2015 | |
| 186. | Guam | 16,038 | 2015 | |
| 192. | Grenada | 8,956 | 2015 | |
| 203. | Greenland | 4,905 | 2015 | |
| 106. | Greece | 537,139 | 2015 | |
| 214. | Gibraltar | 2,525 | 2015 | |
| 43. | Ghana | 2,630,140 | 2015 | |
| 24. | Germany | 4,379,055 | 2015 | |
| 123. | Georgia | 322,044 | 2015 | |
| 146. | Gaza Strip | 185,342 | 2015 | |
| 149. | Gabon | 160,643 | 2015 | |
| 178. | French Polynesia | 23,717 | 2015 | |
| 28. | France | 3,947,782 | 2015 | |
| 121. | Finland | 331,936 | 2015 | |
| 160. | Fiji | 76,060 | 2015 | |
| 190. | Federated States of Micronesia | 9,699 | 2015 | |
| 207. | Faroe Islands | 3,881 | 2015 | |
| 11. | Ethiopia | 8,883,280 | 2015 | |
| 163. | Estonia | 72,120 | 2015 | |
| 98. | Eritrea | 608,627 | 2015 | |
| 164. | Equatorial Guinea | 66,810 | 2015 | |
| 96. | El Salvador | 614,111 | 2015 | |
| 16. | Egypt | 7,655,362 | 2015 | |
| 68. | Ecuador | 1,425,279 | 2015 | |
| 153. | East Timor | 127,143 | 2015 | |
| 80. | Dominican Republic | 936,622 | 2015 | |
| 200. | Dominica | 6,388 | 2015 | |
| 158. | Djibouti | 90,910 | 2015 | |
| 116. | Denmark | 370,901 | 2015 | |
| 14. | Democratic Republic of the Congo | 7,854,344 | 2015 | |
| 102. | Czech Republic | 593,014 | 2015 | |
| 157. | Cyprus | 101,258 | 2015 | |
| 86. | Cuba | 748,214 | 2015 | |
| 136. | Croatia | 271,027 | 2015 | |
| 50. | Cote d'Ivoire | 2,298,295 | 2015 | |
| 114. | Costa Rica | 422,482 | 2015 | |
| 223. | Cook Islands | 846 | 2015 | |
| 165. | Comoros | 66,792 | 2015 | |
| 26. | Colombia | 4,189,261 | 2015 | |
| 2. | China | 102,641,960 | 2015 | |
| 66. | Chile | 1,432,515 | 2015 | |
| 194. | Channel Islands | 7,645 | 2015 | |
| 72. | Chad | 1,085,624 | 2015 | |
| 108. | Central African Republic | 511,551 | 2015 | |
| 210. | Cayman Islands | 3,673 | 2015 | |
| 167. | Cape Verde | 56,971 | 2015 | |
| 49. | Canada | 2,332,035 | 2015 | |
| 54. | Cameroon | 2,048,327 | 2015 | |
| 59. | Cambodia | 1,655,404 | 2015 | |
| 77. | Burundi | 1,033,536 | 2015 | |
| 56. | Burkina Faso | 1,740,200 | 2015 | |
| 117. | Bulgaria | 366,098 | 2015 | |
| 172. | Brunei | 37,775 | 2015 |
