The World: Population - Age 40-44 (2021) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 52. | Afghanistan | 1,601,966 | 2021 | |
| 140. | Albania | 176,628 | 2021 | |
| 27. | Algeria | 3,247,227 | 2021 | |
| 204. | American Samoa | 4,311 | 2021 | |
| 192. | Andorra | 7,086 | 2021 | |
| 62. | Angola | 1,027,488 | 2021 | |
| 220. | Anguilla | 1,257 | 2021 | |
| 194. | Antigua and Barbuda | 6,688 | 2021 | |
| 28. | Argentina | 3,226,612 | 2021 | |
| 136. | Armenia | 224,863 | 2021 | |
| 189. | Aruba | 8,119 | 2021 | |
| 50. | Australia | 1,611,186 | 2021 | |
| 101. | Austria | 499,780 | 2021 | |
| 82. | Azerbaijan | 687,613 | 2021 | |
| 143. | Bahrain | 154,979 | 2021 | |
| 6. | Bangladesh | 12,728,882 | 2021 | |
| 181. | Barbados | 19,732 | 2021 | |
| 80. | Belarus | 710,222 | 2021 | |
| 83. | Belgium | 663,585 | 2021 | |
| 178. | Belize | 21,191 | 2021 | |
| 89. | Benin | 568,220 | 2021 | |
| 208. | Bermuda | 3,752 | 2021 | |
| 162. | Bhutan | 56,766 | 2021 | |
| 79. | Bolivia | 711,219 | 2021 | |
| 117. | Bosnia and Herzegovina | 324,684 | 2021 | |
| 146. | Botswana | 135,404 | 2021 | |
| 5. | Brazil | 16,490,523 | 2021 | |
| 210. | British Virgin Islands | 3,078 | 2021 | |
| 170. | Brunei | 37,378 | 2021 | |
| 97. | Bulgaria | 512,397 | 2021 | |
| 64. | Burkina Faso | 995,805 | 2021 | |
| 88. | Burundi | 587,318 | 2021 | |
| 65. | Cambodia | 937,351 | 2021 | |
| 59. | Cameroon | 1,194,428 | 2021 | |
| 37. | Canada | 2,331,106 | 2021 | |
| 172. | Cape Verde | 34,882 | 2021 | |
| 205. | Cayman Islands | 4,301 | 2021 | |
| 126. | Central African Republic | 281,684 | 2021 | |
| 98. | Chad | 510,338 | 2021 | |
| 203. | Channel Islands | 4,556 | 2021 | |
| 58. | Chile | 1,231,119 | 2021 | |
| 2. | China | 90,635,936 | 2021 | |
| 31. | Colombia | 3,099,583 | 2021 | |
| 166. | Comoros | 45,111 | 2021 | |
| 227. | Cook Islands | 408 | 2021 | |
| 115. | Costa Rica | 358,954 | 2021 | |
| 55. | Cote d'Ivoire | 1,378,626 | 2021 | |
| 119. | Croatia | 318,953 | 2021 | |
| 85. | Cuba | 618,558 | 2021 | |
| 153. | Cyprus | 101,247 | 2021 | |
| 70. | Czech Republic | 842,631 | 2021 | |
| 24. | Democratic Republic of the Congo | 4,131,871 | 2021 | |
| 116. | Denmark | 334,521 | 2021 | |
| 161. | Djibouti | 56,851 | 2021 | |
| 201. | Dominica | 4,924 | 2021 | |
| 81. | Dominican Republic | 695,149 | 2021 | |
| 159. | East Timor | 67,658 | 2021 | |
| 61. | Ecuador | 1,115,165 | 2021 | |
| 15. | Egypt | 6,608,887 | 2021 | |
| 110. | El Salvador | 406,058 | 2021 | |
| 168. | Equatorial Guinea | 41,275 | 2021 | |
| 113. | Eritrea | 391,503 | 2021 | |
| 156. | Estonia | 80,662 | 2021 | |
| 18. | Ethiopia | 5,257,766 | 2021 | |
| 212. | Faroe Islands | 2,695 | 2021 | |
| 193. | Federated States of Micronesia | 6,935 | 2021 | |
| 160. | Fiji | 67,282 | 2021 | |
| 118. | Finland | 324,312 | 2021 | |
| 23. | France | 4,157,591 | 2021 | |
| 180. | French Polynesia | 20,185 | 2021 | |
| 158. | Gabon | 70,517 | 2021 | |
| 152. | Gaza Strip | 104,864 | 2021 | |
| 123. | Georgia | 288,165 | 2021 | |
| 19. | Germany | 4,785,137 | 2021 | |
| 51. | Ghana | 1,609,127 | 2021 | |
| 217. | Gibraltar | 2,033 | 2021 | |
| 71. | Greece | 831,178 | 2021 | |
| 211. | Greenland | 2,952 | 2021 | |
| 195. | Grenada | 6,416 | 2021 | |
| 185. | Guam | 11,712 | 2021 | |
| 68. | Guatemala | 859,330 | 2021 | |
| 206. | Guernsey | 4,246 | 2021 | |
| 84. | Guinea | 620,586 | 2021 | |
| 154. | Guinea-Bissau | 95,207 | 2021 | |
| 165. | Guyana | 45,767 | 2021 | |
| 86. | Haiti | 615,225 | 2021 | |
| 91. | Honduras | 545,366 | 2021 | |
| 95. | Hong Kong | 527,754 | 2021 | |
| 76. | Hungary | 780,331 | 2021 | |
| 177. | Iceland | 22,049 | 2021 | |
| 1. | India | 90,792,776 | 2021 | |
| 4. | Indonesia | 19,596,930 | 2021 | |
| 14. | Iran | 7,199,587 | 2021 | |
| 39. | Iraq | 2,285,901 | 2021 | |
| 108. | Ireland | 425,319 | 2021 | |
| 199. | Isle of Man | 5,405 | 2021 | |
| 93. | Israel | 539,199 | 2021 | |
| 20. | Italy | 4,387,119 | 2021 | |
| 141. | Jamaica | 176,182 | 2021 | |
| 11. | Japan | 8,013,978 | 2021 |
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