The World: Population - Age 45-49 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 185. | Mayotte | 10,780 | 2020 | |
| 151. | Mauritius | 88,218 | 2020 | |
| 139. | Mauritania | 163,491 | 2020 | |
| 208. | Marshall Islands | 3,565 | 2020 | |
| 174. | Malta | 27,158 | 2020 | |
| 85. | Mali | 539,257 | 2020 | |
| 177. | Maldives | 21,502 | 2020 | |
| 36. | Malaysia | 2,020,742 | 2020 | |
| 78. | Malawi | 616,358 | 2020 | |
| 58. | Madagascar | 1,033,176 | 2020 | |
| 142. | Macedonia | 148,436 | 2020 | |
| 162. | Macau | 46,902 | 2020 | |
| 168. | Luxembourg | 36,642 | 2020 | |
| 126. | Lithuania | 250,446 | 2020 | |
| 214. | Liechtenstein | 2,751 | 2020 | |
| 94. | Libya | 477,975 | 2020 | |
| 136. | Liberia | 173,358 | 2020 | |
| 156. | Lesotho | 69,950 | 2020 | |
| 123. | Lebanon | 273,883 | 2020 | |
| 141. | Latvia | 150,812 | 2020 | |
| 111. | Laos | 350,340 | 2020 | |
| 118. | Kyrgyzstan | 312,345 | 2020 | |
| 134. | Kuwait | 183,127 | 2020 | |
| 146. | Kosovo | 110,370 | 2020 | |
| 200. | Kiribati | 5,047 | 2020 | |
| 38. | Kenya | 1,911,941 | 2020 | |
| 54. | Kazakhstan | 1,155,388 | 2020 | |
| 106. | Jordan | 383,907 | 2020 | |
| 8. | Japan | 9,449,453 | 2020 | |
| 144. | Jamaica | 139,836 | 2020 | |
| 17. | Italy | 5,106,839 | 2020 | |
| 89. | Israel | 501,334 | 2020 | |
| 196. | Isle of Man | 6,434 | 2020 | |
| 108. | Ireland | 379,915 | 2020 | |
| 41. | Iraq | 1,840,810 | 2020 | |
| 15. | Iran | 5,347,524 | 2020 | |
| 4. | Indonesia | 17,939,196 | 2020 | |
| 2. | India | 82,377,296 | 2020 | |
| 178. | Iceland | 21,336 | 2020 | |
| 71. | Hungary | 767,122 | 2020 | |
| 82. | Hong Kong | 562,537 | 2020 | |
| 99. | Honduras | 432,139 | 2020 | |
| 88. | Haiti | 504,936 | 2020 | |
| 163. | Guyana | 43,016 | 2020 | |
| 153. | Guinea-Bissau | 78,589 | 2020 | |
| 90. | Guinea | 500,687 | 2020 | |
| 202. | Guernsey | 4,698 | 2020 | |
| 75. | Guatemala | 665,086 | 2020 | |
| 183. | Guam | 12,449 | 2020 | |
| 194. | Grenada | 6,746 | 2020 | |
| 212. | Greenland | 2,791 | 2020 | |
| 66. | Greece | 845,631 | 2020 | |
| 218. | Gibraltar | 1,833 | 2020 | |
| 50. | Ghana | 1,410,594 | 2020 | |
| 18. | Germany | 5,023,693 | 2020 | |
| 122. | Georgia | 283,437 | 2020 | |
| 154. | Gaza Strip | 76,990 | 2020 | |
| 158. | Gabon | 59,196 | 2020 | |
| 180. | French Polynesia | 20,071 | 2020 | |
| 20. | France | 4,545,823 | 2020 | |
| 120. | Finland | 300,826 | 2020 | |
| 159. | Fiji | 52,543 | 2020 | |
| 197. | Federated States of Micronesia | 5,709 | 2020 | |
| 211. | Faroe Islands | 3,032 | 2020 | |
| 24. | Ethiopia | 3,815,570 | 2020 | |
| 152. | Estonia | 79,706 | 2020 | |
| 117. | Eritrea | 316,717 | 2020 | |
| 170. | Equatorial Guinea | 34,131 | 2020 | |
| 110. | El Salvador | 351,660 | 2020 | |
| 19. | Egypt | 4,575,230 | 2020 | |
| 61. | Ecuador | 939,880 | 2020 | |
| 157. | East Timor | 64,325 | 2020 | |
| 77. | Dominican Republic | 629,330 | 2020 | |
| 204. | Dominica | 4,248 | 2020 | |
| 165. | Djibouti | 42,326 | 2020 | |
| 105. | Denmark | 387,364 | 2020 | |
| 26. | Democratic Republic of the Congo | 3,147,347 | 2020 | |
| 64. | Czech Republic | 846,438 | 2020 | |
| 147. | Cyprus | 89,184 | 2020 | |
| 60. | Cuba | 945,270 | 2020 | |
| 121. | Croatia | 298,298 | 2020 | |
| 57. | Cote d'Ivoire | 1,090,655 | 2020 | |
| 115. | Costa Rica | 319,856 | 2020 | |
| 223. | Cook Islands | 641 | 2020 | |
| 166. | Comoros | 41,602 | 2020 | |
| 28. | Colombia | 3,028,373 | 2020 | |
| 1. | China | 114,270,296 | 2020 | |
| 56. | Chile | 1,124,994 | 2020 | |
| 198. | Channel Islands | 5,431 | 2020 | |
| 104. | Chad | 390,925 | 2020 | |
| 129. | Central African Republic | 223,386 | 2020 | |
| 203. | Cayman Islands | 4,527 | 2020 | |
| 173. | Cape Verde | 27,459 | 2020 | |
| 32. | Canada | 2,263,696 | 2020 | |
| 63. | Cameroon | 882,517 | 2020 | |
| 68. | Cambodia | 823,177 | 2020 | |
| 98. | Burundi | 442,942 | 2020 | |
| 70. | Burkina Faso | 767,978 | 2020 | |
| 92. | Bulgaria | 490,699 | 2020 | |
| 171. | Brunei | 29,678 | 2020 |
