The World: Population - Age 30-34 (2023) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 40. | Afghanistan | 2,854,711 | 2023 | |
| 134. | Albania | 283,360 | 2023 | |
| 30. | Algeria | 3,520,777 | 2023 | |
| 198. | American Samoa | 6,510 | 2023 | |
| 210. | Andorra | 3,911 | 2023 | |
| 59. | Angola | 1,590,752 | 2023 | |
| 221. | Anguilla | 1,242 | 2023 | |
| 195. | Antigua and Barbuda | 7,283 | 2023 | |
| 31. | Argentina | 3,353,679 | 2023 | |
| 131. | Armenia | 301,455 | 2023 | |
| 192. | Aruba | 8,207 | 2023 | |
| 55. | Australia | 1,763,341 | 2023 | |
| 107. | Austria | 522,573 | 2023 | |
| 76. | Azerbaijan | 967,812 | 2023 | |
| 146. | Bahrain | 169,528 | 2023 | |
| 7. | Bangladesh | 14,558,173 | 2023 | |
| 182. | Barbados | 20,794 | 2023 | |
| 89. | Belarus | 675,763 | 2023 | |
| 92. | Belgium | 666,482 | 2023 | |
| 175. | Belize | 32,486 | 2023 | |
| 82. | Benin | 859,094 | 2023 | |
| 207. | Bermuda | 4,369 | 2023 | |
| 161. | Bhutan | 76,559 | 2023 | |
| 75. | Bolivia | 983,560 | 2023 | |
| 129. | Bosnia and Herzegovina | 317,539 | 2023 | |
| 143. | Botswana | 210,631 | 2023 | |
| 6. | Brazil | 16,148,535 | 2023 | |
| 212. | British Virgin Islands | 3,526 | 2023 | |
| 171. | Brunei | 44,707 | 2023 | |
| 117. | Bulgaria | 388,601 | 2023 | |
| 61. | Burkina Faso | 1,540,902 | 2023 | |
| 79. | Burundi | 929,297 | 2023 | |
| 56. | Cambodia | 1,665,873 | 2023 | |
| 54. | Cameroon | 1,866,839 | 2023 | |
| 46. | Canada | 2,503,142 | 2023 | |
| 167. | Cape Verde | 52,849 | 2023 | |
| 206. | Cayman Islands | 4,491 | 2023 | |
| 111. | Central African Republic | 465,376 | 2023 | |
| 80. | Chad | 916,519 | 2023 | |
| 190. | Channel Islands | 8,659 | 2023 | |
| 63. | Chile | 1,450,056 | 2023 | |
| 1. | China | 112,113,888 | 2023 | |
| 27. | Colombia | 4,063,233 | 2023 | |
| 165. | Comoros | 60,188 | 2023 | |
| 224. | Cook Islands | 487 | 2023 | |
| 114. | Costa Rica | 431,092 | 2023 | |
| 50. | Cote d'Ivoire | 2,125,957 | 2023 | |
| 137. | Croatia | 272,176 | 2023 | |
| 87. | Cuba | 785,800 | 2023 | |
| 156. | Cyprus | 110,363 | 2023 | |
| 95. | Czech Republic | 643,933 | 2023 | |
| 16. | Democratic Republic of the Congo | 6,946,641 | 2023 | |
| 120. | Denmark | 366,042 | 2023 | |
| 158. | Djibouti | 93,345 | 2023 | |
| 200. | Dominica | 5,658 | 2023 | |
| 81. | Dominican Republic | 878,477 | 2023 | |
| 154. | East Timor | 126,912 | 2023 | |
| 68. | Ecuador | 1,369,860 | 2023 | |
| 15. | Egypt | 7,472,011 | 2023 | |
| 108. | El Salvador | 521,407 | 2023 | |
| 164. | Equatorial Guinea | 61,714 | 2023 | |
| 105. | Eritrea | 548,365 | 2023 | |
| 160. | Estonia | 78,946 | 2023 | |
| 14. | Ethiopia | 8,157,866 | 2023 | |
| 208. | Faroe Islands | 4,010 | 2023 | |
| 193. | Federated States of Micronesia | 7,783 | 2023 | |
| 162. | Fiji | 70,508 | 2023 | |
| 124. | Finland | 331,433 | 2023 | |
| 26. | France | 4,126,883 | 2023 | |
| 178. | French Polynesia | 24,834 | 2023 | |
| 153. | Gabon | 132,074 | 2023 | |
| 145. | Gaza Strip | 180,470 | 2023 | |
| 123. | Georgia | 338,651 | 2023 | |
| 21. | Germany | 4,918,495 | 2023 | |
| 45. | Ghana | 2,515,367 | 2023 | |
| 216. | Gibraltar | 2,423 | 2023 | |
| 100. | Greece | 593,903 | 2023 | |
| 204. | Greenland | 4,648 | 2023 | |
| 191. | Grenada | 8,445 | 2023 | |
| 184. | Guam | 15,372 | 2023 | |
| 64. | Guatemala | 1,429,836 | 2023 | |
| 205. | Guernsey | 4,500 | 2023 | |
| 77. | Guinea | 946,317 | 2023 | |
| 151. | Guinea-Bissau | 144,167 | 2023 | |
| 163. | Guyana | 61,820 | 2023 | |
| 78. | Haiti | 933,541 | 2023 | |
| 86. | Honduras | 808,042 | 2023 | |
| 112. | Hong Kong | 444,033 | 2023 | |
| 97. | Hungary | 620,766 | 2023 | |
| 180. | Iceland | 23,802 | 2023 | |
| 2. | India | 105,582,904 | 2023 | |
| 4. | Indonesia | 20,237,204 | 2023 | |
| 12. | Iran | 8,888,979 | 2023 | |
| 39. | Iraq | 2,922,633 | 2023 | |
| 126. | Ireland | 326,540 | 2023 | |
| 202. | Isle of Man | 5,451 | 2023 | |
| 99. | Israel | 596,068 | 2023 | |
| 29. | Italy | 3,535,182 | 2023 | |
| 135. | Jamaica | 282,780 | 2023 | |
| 18. | Japan | 6,119,894 | 2023 |
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