The World: Population - Age 40-44 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 183. | Mayotte | 12,393 | 2018 | |
| 150. | Mauritius | 101,262 | 2018 | |
| 138. | Mauritania | 187,980 | 2018 | |
| 206. | Marshall Islands | 3,954 | 2018 | |
| 174. | Malta | 29,206 | 2018 | |
| 77. | Mali | 678,103 | 2018 | |
| 175. | Maldives | 25,088 | 2018 | |
| 38. | Malaysia | 2,145,257 | 2018 | |
| 73. | Malawi | 768,037 | 2018 | |
| 57. | Madagascar | 1,185,952 | 2018 | |
| 142. | Macedonia | 155,696 | 2018 | |
| 164. | Macau | 46,352 | 2018 | |
| 170. | Luxembourg | 35,446 | 2018 | |
| 130. | Lithuania | 243,447 | 2018 | |
| 214. | Liechtenstein | 2,537 | 2018 | |
| 99. | Libya | 490,584 | 2018 | |
| 137. | Liberia | 203,132 | 2018 | |
| 151. | Lesotho | 99,850 | 2018 | |
| 122. | Lebanon | 292,983 | 2018 | |
| 144. | Latvia | 146,526 | 2018 | |
| 109. | Laos | 387,681 | 2018 | |
| 114. | Kyrgyzstan | 355,037 | 2018 | |
| 132. | Kuwait | 239,686 | 2018 | |
| 146. | Kosovo | 117,826 | 2018 | |
| 197. | Kiribati | 5,644 | 2018 | |
| 33. | Kenya | 2,431,852 | 2018 | |
| 56. | Kazakhstan | 1,196,958 | 2018 | |
| 106. | Jordan | 403,830 | 2018 | |
| 10. | Japan | 8,850,728 | 2018 | |
| 141. | Jamaica | 161,586 | 2018 | |
| 18. | Italy | 4,811,717 | 2018 | |
| 91. | Israel | 530,947 | 2018 | |
| 199. | Isle of Man | 5,491 | 2018 | |
| 107. | Ireland | 395,868 | 2018 | |
| 40. | Iraq | 2,039,474 | 2018 | |
| 14. | Iran | 6,193,895 | 2018 | |
| 4. | Indonesia | 19,115,372 | 2018 | |
| 2. | India | 87,394,480 | 2018 | |
| 177. | Iceland | 21,293 | 2018 | |
| 67. | Hungary | 864,536 | 2018 | |
| 89. | Hong Kong | 536,535 | 2018 | |
| 100. | Honduras | 488,962 | 2018 | |
| 86. | Haiti | 569,546 | 2018 | |
| 165. | Guyana | 44,441 | 2018 | |
| 154. | Guinea-Bissau | 87,484 | 2018 | |
| 87. | Guinea | 568,032 | 2018 | |
| 202. | Guernsey | 4,319 | 2018 | |
| 72. | Guatemala | 771,731 | 2018 | |
| 185. | Guam | 11,766 | 2018 | |
| 193. | Grenada | 6,939 | 2018 | |
| 211. | Greenland | 2,876 | 2018 | |
| 68. | Greece | 843,669 | 2018 | |
| 217. | Gibraltar | 2,009 | 2018 | |
| 51. | Ghana | 1,531,158 | 2018 | |
| 19. | Germany | 4,608,653 | 2018 | |
| 123. | Georgia | 289,571 | 2018 | |
| 153. | Gaza Strip | 89,458 | 2018 | |
| 157. | Gabon | 64,960 | 2018 | |
| 180. | French Polynesia | 19,913 | 2018 | |
| 22. | France | 4,160,444 | 2018 | |
| 118. | Finland | 320,473 | 2018 | |
| 160. | Fiji | 60,114 | 2018 | |
| 194. | Federated States of Micronesia | 6,550 | 2018 | |
| 210. | Faroe Islands | 2,999 | 2018 | |
| 20. | Ethiopia | 4,551,582 | 2018 | |
| 156. | Estonia | 80,688 | 2018 | |
| 113. | Eritrea | 358,841 | 2018 | |
| 169. | Equatorial Guinea | 37,602 | 2018 | |
| 108. | El Salvador | 389,054 | 2018 | |
| 16. | Egypt | 5,455,692 | 2018 | |
| 61. | Ecuador | 1,036,060 | 2018 | |
| 159. | East Timor | 61,272 | 2018 | |
| 79. | Dominican Republic | 658,449 | 2018 | |
| 207. | Dominica | 3,836 | 2018 | |
| 162. | Djibouti | 49,835 | 2018 | |
| 111. | Denmark | 366,760 | 2018 | |
| 25. | Democratic Republic of the Congo | 3,673,456 | 2018 | |
| 64. | Czech Republic | 920,134 | 2018 | |
| 152. | Cyprus | 90,837 | 2018 | |
| 69. | Cuba | 824,404 | 2018 | |
| 119. | Croatia | 309,016 | 2018 | |
| 55. | Cote d'Ivoire | 1,270,720 | 2018 | |
| 117. | Costa Rica | 336,368 | 2018 | |
| 224. | Cook Islands | 538 | 2018 | |
| 166. | Comoros | 43,847 | 2018 | |
| 28. | Colombia | 3,064,520 | 2018 | |
| 1. | China | 98,987,816 | 2018 | |
| 58. | Chile | 1,168,776 | 2018 | |
| 201. | Channel Islands | 4,354 | 2018 | |
| 102. | Chad | 456,397 | 2018 | |
| 127. | Central African Republic | 255,542 | 2018 | |
| 203. | Cayman Islands | 4,205 | 2018 | |
| 173. | Cape Verde | 31,019 | 2018 | |
| 37. | Canada | 2,256,043 | 2018 | |
| 60. | Cameroon | 1,058,522 | 2018 | |
| 76. | Cambodia | 683,831 | 2018 | |
| 92. | Burundi | 521,157 | 2018 | |
| 65. | Burkina Faso | 898,353 | 2018 | |
| 90. | Bulgaria | 535,832 | 2018 | |
| 171. | Brunei | 34,577 | 2018 |
