The World: Population - Age 25-29 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 186. | Mayotte | 13,385 | 2018 | |
| 157. | Mauritius | 106,478 | 2018 | |
| 128. | Mauritania | 311,922 | 2018 | |
| 201. | Marshall Islands | 5,562 | 2018 | |
| 176. | Malta | 28,248 | 2018 | |
| 70. | Mali | 1,243,991 | 2018 | |
| 169. | Maldives | 49,782 | 2018 | |
| 47. | Malaysia | 2,433,853 | 2018 | |
| 62. | Malawi | 1,553,682 | 2018 | |
| 52. | Madagascar | 2,120,818 | 2018 | |
| 150. | Macedonia | 150,660 | 2018 | |
| 171. | Macau | 48,595 | 2018 | |
| 174. | Luxembourg | 37,302 | 2018 | |
| 140. | Lithuania | 257,149 | 2018 | |
| 216. | Liechtenstein | 2,364 | 2018 | |
| 99. | Libya | 602,412 | 2018 | |
| 132. | Liberia | 302,862 | 2018 | |
| 145. | Lesotho | 185,764 | 2018 | |
| 120. | Lebanon | 355,880 | 2018 | |
| 148. | Latvia | 155,880 | 2018 | |
| 90. | Laos | 671,026 | 2018 | |
| 103. | Kyrgyzstan | 575,658 | 2018 | |
| 122. | Kuwait | 335,932 | 2018 | |
| 147. | Kosovo | 170,440 | 2018 | |
| 189. | Kiribati | 10,215 | 2018 | |
| 28. | Kenya | 3,975,899 | 2018 | |
| 58. | Kazakhstan | 1,631,758 | 2018 | |
| 101. | Jordan | 583,790 | 2018 | |
| 18. | Japan | 6,129,885 | 2018 | |
| 133. | Jamaica | 301,607 | 2018 | |
| 31. | Italy | 3,373,951 | 2018 | |
| 100. | Israel | 593,917 | 2018 | |
| 202. | Isle of Man | 5,296 | 2018 | |
| 130. | Ireland | 307,420 | 2018 | |
| 39. | Iraq | 2,939,056 | 2018 | |
| 12. | Iran | 8,935,761 | 2018 | |
| 4. | Indonesia | 20,478,796 | 2018 | |
| 2. | India | 106,472,584 | 2018 | |
| 179. | Iceland | 23,761 | 2018 | |
| 97. | Hungary | 621,182 | 2018 | |
| 114. | Hong Kong | 426,965 | 2018 | |
| 85. | Honduras | 831,104 | 2018 | |
| 78. | Haiti | 965,413 | 2018 | |
| 163. | Guyana | 62,955 | 2018 | |
| 149. | Guinea-Bissau | 151,654 | 2018 | |
| 77. | Guinea | 969,712 | 2018 | |
| 204. | Guernsey | 4,457 | 2018 | |
| 64. | Guatemala | 1,462,521 | 2018 | |
| 184. | Guam | 15,420 | 2018 | |
| 191. | Grenada | 8,669 | 2018 | |
| 203. | Greenland | 4,763 | 2018 | |
| 104. | Greece | 572,565 | 2018 | |
| 215. | Gibraltar | 2,485 | 2018 | |
| 45. | Ghana | 2,558,181 | 2018 | |
| 22. | Germany | 4,860,283 | 2018 | |
| 121. | Georgia | 346,892 | 2018 | |
| 146. | Gaza Strip | 181,180 | 2018 | |
| 152. | Gabon | 146,287 | 2018 | |
| 178. | French Polynesia | 24,477 | 2018 | |
| 27. | France | 4,070,923 | 2018 | |
| 123. | Finland | 331,444 | 2018 | |
| 162. | Fiji | 72,573 | 2018 | |
| 192. | Federated States of Micronesia | 8,512 | 2018 | |
| 207. | Faroe Islands | 4,018 | 2018 | |
| 14. | Ethiopia | 8,379,176 | 2018 | |
| 160. | Estonia | 82,937 | 2018 | |
| 105. | Eritrea | 561,253 | 2018 | |
| 164. | Equatorial Guinea | 62,387 | 2018 | |
| 106. | El Salvador | 549,837 | 2018 | |
| 15. | Egypt | 7,506,041 | 2018 | |
| 68. | Ecuador | 1,379,317 | 2018 | |
| 154. | East Timor | 127,688 | 2018 | |
| 80. | Dominican Republic | 896,014 | 2018 | |
| 200. | Dominica | 5,977 | 2018 | |
| 158. | Djibouti | 92,231 | 2018 | |
| 119. | Denmark | 363,375 | 2018 | |
| 16. | Democratic Republic of the Congo | 7,120,247 | 2018 | |
| 96. | Czech Republic | 638,660 | 2018 | |
| 156. | Cyprus | 108,231 | 2018 | |
| 87. | Cuba | 801,584 | 2018 | |
| 137. | Croatia | 271,706 | 2018 | |
| 49. | Cote d'Ivoire | 2,192,384 | 2018 | |
| 113. | Costa Rica | 430,502 | 2018 | |
| 224. | Cook Islands | 599 | 2018 | |
| 165. | Comoros | 61,910 | 2018 | |
| 26. | Colombia | 4,103,987 | 2018 | |
| 1. | China | 112,848,104 | 2018 | |
| 65. | Chile | 1,454,817 | 2018 | |
| 190. | Channel Islands | 8,751 | 2018 | |
| 76. | Chad | 969,804 | 2018 | |
| 111. | Central African Republic | 483,622 | 2018 | |
| 208. | Cayman Islands | 3,943 | 2018 | |
| 167. | Cape Verde | 54,353 | 2018 | |
| 48. | Canada | 2,427,946 | 2018 | |
| 54. | Cameroon | 1,952,221 | 2018 | |
| 55. | Cambodia | 1,691,774 | 2018 | |
| 79. | Burundi | 949,556 | 2018 | |
| 60. | Burkina Faso | 1,584,724 | 2018 | |
| 116. | Bulgaria | 401,890 | 2018 | |
| 172. | Brunei | 41,890 | 2018 |
