The World: Population - Age 45-49 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 51. | Afghanistan | 1,343,212 | 2020 | |
| 137. | Albania | 169,530 | 2020 | |
| 31. | Algeria | 2,543,988 | 2020 | |
| 206. | American Samoa | 4,018 | 2020 | |
| 187. | Andorra | 8,322 | 2020 | |
| 69. | Angola | 787,513 | 2020 | |
| 220. | Anguilla | 1,360 | 2020 | |
| 195. | Antigua and Barbuda | 6,494 | 2020 | |
| 30. | Argentina | 2,664,839 | 2020 | |
| 133. | Armenia | 195,702 | 2020 | |
| 191. | Aruba | 7,916 | 2020 | |
| 48. | Australia | 1,625,909 | 2020 | |
| 80. | Austria | 574,568 | 2020 | |
| 76. | Azerbaijan | 634,572 | 2020 | |
| 145. | Bahrain | 118,494 | 2020 | |
| 6. | Bangladesh | 10,855,931 | 2020 | |
| 176. | Barbados | 21,670 | 2020 | |
| 74. | Belarus | 667,029 | 2020 | |
| 72. | Belgium | 697,568 | 2020 | |
| 181. | Belize | 16,405 | 2020 | |
| 96. | Benin | 453,418 | 2020 | |
| 205. | Bermuda | 4,044 | 2020 | |
| 164. | Bhutan | 42,564 | 2020 | |
| 83. | Bolivia | 561,532 | 2020 | |
| 109. | Bosnia and Herzegovina | 352,735 | 2020 | |
| 149. | Botswana | 88,286 | 2020 | |
| 5. | Brazil | 14,738,358 | 2020 | |
| 213. | British Virgin Islands | 2,756 | 2020 | |
| 171. | Brunei | 29,678 | 2020 | |
| 92. | Bulgaria | 490,699 | 2020 | |
| 70. | Burkina Faso | 767,978 | 2020 | |
| 98. | Burundi | 442,942 | 2020 | |
| 68. | Cambodia | 823,177 | 2020 | |
| 63. | Cameroon | 882,517 | 2020 | |
| 32. | Canada | 2,263,696 | 2020 | |
| 173. | Cape Verde | 27,459 | 2020 | |
| 203. | Cayman Islands | 4,527 | 2020 | |
| 129. | Central African Republic | 223,386 | 2020 | |
| 104. | Chad | 390,925 | 2020 | |
| 198. | Channel Islands | 5,431 | 2020 | |
| 56. | Chile | 1,124,994 | 2020 | |
| 1. | China | 114,270,296 | 2020 | |
| 28. | Colombia | 3,028,373 | 2020 | |
| 166. | Comoros | 41,602 | 2020 | |
| 223. | Cook Islands | 641 | 2020 | |
| 115. | Costa Rica | 319,856 | 2020 | |
| 57. | Cote d'Ivoire | 1,090,655 | 2020 | |
| 121. | Croatia | 298,298 | 2020 | |
| 60. | Cuba | 945,270 | 2020 | |
| 147. | Cyprus | 89,184 | 2020 | |
| 64. | Czech Republic | 846,438 | 2020 | |
| 26. | Democratic Republic of the Congo | 3,147,347 | 2020 | |
| 105. | Denmark | 387,364 | 2020 | |
| 165. | Djibouti | 42,326 | 2020 | |
| 204. | Dominica | 4,248 | 2020 | |
| 77. | Dominican Republic | 629,330 | 2020 | |
| 157. | East Timor | 64,325 | 2020 | |
| 61. | Ecuador | 939,880 | 2020 | |
| 19. | Egypt | 4,575,230 | 2020 | |
| 110. | El Salvador | 351,660 | 2020 | |
| 170. | Equatorial Guinea | 34,131 | 2020 | |
| 117. | Eritrea | 316,717 | 2020 | |
| 152. | Estonia | 79,706 | 2020 | |
| 24. | Ethiopia | 3,815,570 | 2020 | |
| 211. | Faroe Islands | 3,032 | 2020 | |
| 197. | Federated States of Micronesia | 5,709 | 2020 | |
| 159. | Fiji | 52,543 | 2020 | |
| 120. | Finland | 300,826 | 2020 | |
| 20. | France | 4,545,823 | 2020 | |
| 180. | French Polynesia | 20,071 | 2020 | |
| 158. | Gabon | 59,196 | 2020 | |
| 154. | Gaza Strip | 76,990 | 2020 | |
| 122. | Georgia | 283,437 | 2020 | |
| 18. | Germany | 5,023,693 | 2020 | |
| 50. | Ghana | 1,410,594 | 2020 | |
| 218. | Gibraltar | 1,833 | 2020 | |
| 66. | Greece | 845,631 | 2020 | |
| 212. | Greenland | 2,791 | 2020 | |
| 194. | Grenada | 6,746 | 2020 | |
| 183. | Guam | 12,449 | 2020 | |
| 75. | Guatemala | 665,086 | 2020 | |
| 202. | Guernsey | 4,698 | 2020 | |
| 90. | Guinea | 500,687 | 2020 | |
| 153. | Guinea-Bissau | 78,589 | 2020 | |
| 163. | Guyana | 43,016 | 2020 | |
| 88. | Haiti | 504,936 | 2020 | |
| 99. | Honduras | 432,139 | 2020 | |
| 82. | Hong Kong | 562,537 | 2020 | |
| 71. | Hungary | 767,122 | 2020 | |
| 178. | Iceland | 21,336 | 2020 | |
| 2. | India | 82,377,296 | 2020 | |
| 4. | Indonesia | 17,939,196 | 2020 | |
| 15. | Iran | 5,347,524 | 2020 | |
| 41. | Iraq | 1,840,810 | 2020 | |
| 108. | Ireland | 379,915 | 2020 | |
| 196. | Isle of Man | 6,434 | 2020 | |
| 89. | Israel | 501,334 | 2020 | |
| 17. | Italy | 5,106,839 | 2020 | |
| 144. | Jamaica | 139,836 | 2020 | |
| 8. | Japan | 9,449,453 | 2020 |
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