The World: Population - Age 30-34 (2015) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 48. | Afghanistan | 1,932,992 | 2015 | |
| 139. | Albania | 225,717 | 2015 | |
| 29. | Algeria | 3,582,590 | 2015 | |
| 204. | American Samoa | 4,687 | 2015 | |
| 202. | Andorra | 5,460 | 2015 | |
| 63. | Angola | 1,242,556 | 2015 | |
| 221. | Anguilla | 1,069 | 2015 | |
| 197. | Antigua and Barbuda | 6,582 | 2015 | |
| 35. | Argentina | 3,236,699 | 2015 | |
| 133. | Armenia | 270,195 | 2015 | |
| 193. | Aruba | 8,056 | 2015 | |
| 55. | Australia | 1,618,887 | 2015 | |
| 99. | Austria | 522,520 | 2015 | |
| 77. | Azerbaijan | 805,570 | 2015 | |
| 147. | Bahrain | 162,013 | 2015 | |
| 7. | Bangladesh | 12,435,335 | 2015 | |
| 180. | Barbados | 21,369 | 2015 | |
| 78. | Belarus | 793,693 | 2015 | |
| 93. | Belgium | 643,526 | 2015 | |
| 176. | Belize | 26,101 | 2015 | |
| 88. | Benin | 674,941 | 2015 | |
| 207. | Bermuda | 4,046 | 2015 | |
| 161. | Bhutan | 68,132 | 2015 | |
| 76. | Bolivia | 850,665 | 2015 | |
| 124. | Bosnia and Herzegovina | 322,966 | 2015 | |
| 142. | Botswana | 198,849 | 2015 | |
| 5. | Brazil | 17,152,732 | 2015 | |
| 212. | British Virgin Islands | 2,911 | 2015 | |
| 171. | Brunei | 40,995 | 2015 | |
| 105. | Bulgaria | 490,965 | 2015 | |
| 66. | Burkina Faso | 1,183,541 | 2015 | |
| 84. | Burundi | 730,764 | 2015 | |
| 60. | Cambodia | 1,411,439 | 2015 | |
| 57. | Cameroon | 1,535,938 | 2015 | |
| 41. | Canada | 2,352,387 | 2015 | |
| 170. | Cape Verde | 43,490 | 2015 | |
| 210. | Cayman Islands | 3,622 | 2015 | |
| 118. | Central African Republic | 367,606 | 2015 | |
| 85. | Chad | 719,974 | 2015 | |
| 196. | Channel Islands | 6,665 | 2015 | |
| 62. | Chile | 1,305,956 | 2015 | |
| 1. | China | 100,309,536 | 2015 | |
| 30. | Colombia | 3,482,579 | 2015 | |
| 164. | Comoros | 54,185 | 2015 | |
| 227. | Cook Islands | 438 | 2015 | |
| 114. | Costa Rica | 402,951 | 2015 | |
| 53. | Cote d'Ivoire | 1,692,451 | 2015 | |
| 125. | Croatia | 315,915 | 2015 | |
| 87. | Cuba | 694,361 | 2015 | |
| 156. | Cyprus | 105,925 | 2015 | |
| 86. | Czech Republic | 703,066 | 2015 | |
| 19. | Democratic Republic of the Congo | 5,130,063 | 2015 | |
| 126. | Denmark | 303,749 | 2015 | |
| 162. | Djibouti | 67,285 | 2015 | |
| 200. | Dominica | 5,644 | 2015 | |
| 79. | Dominican Republic | 778,500 | 2015 | |
| 158. | East Timor | 100,396 | 2015 | |
| 64. | Ecuador | 1,219,266 | 2015 | |
| 14. | Egypt | 7,636,356 | 2015 | |
| 110. | El Salvador | 451,139 | 2015 | |
| 168. | Equatorial Guinea | 48,340 | 2015 | |
| 111. | Eritrea | 447,577 | 2015 | |
| 159. | Estonia | 90,857 | 2015 | |
| 17. | Ethiopia | 6,524,218 | 2015 | |
| 213. | Faroe Islands | 2,444 | 2015 | |
| 189. | Federated States of Micronesia | 8,301 | 2015 | |
| 160. | Fiji | 75,412 | 2015 | |
| 121. | Finland | 331,549 | 2015 | |
| 23. | France | 4,184,680 | 2015 | |
| 179. | French Polynesia | 22,017 | 2015 | |
| 155. | Gabon | 107,635 | 2015 | |
| 152. | Gaza Strip | 118,968 | 2015 | |
| 123. | Georgia | 326,618 | 2015 | |
| 20. | Germany | 4,916,056 | 2015 | |
| 46. | Ghana | 1,996,612 | 2015 | |
| 215. | Gibraltar | 2,192 | 2015 | |
| 82. | Greece | 746,121 | 2015 | |
| 209. | Greenland | 3,678 | 2015 | |
| 191. | Grenada | 8,148 | 2015 | |
| 187. | Guam | 12,315 | 2015 | |
| 68. | Guatemala | 1,051,552 | 2015 | |
| 205. | Guernsey | 4,180 | 2015 | |
| 81. | Guinea | 748,279 | 2015 | |
| 151. | Guinea-Bissau | 121,090 | 2015 | |
| 167. | Guyana | 48,690 | 2015 | |
| 80. | Haiti | 758,240 | 2015 | |
| 90. | Honduras | 669,402 | 2015 | |
| 101. | Hong Kong | 516,888 | 2015 | |
| 92. | Hungary | 646,507 | 2015 | |
| 178. | Iceland | 22,267 | 2015 | |
| 2. | India | 97,513,544 | 2015 | |
| 4. | Indonesia | 20,148,016 | 2015 | |
| 13. | Iran | 8,379,135 | 2015 | |
| 38. | Iraq | 2,629,207 | 2015 | |
| 115. | Ireland | 398,859 | 2015 | |
| 203. | Isle of Man | 4,785 | 2015 | |
| 96. | Israel | 555,614 | 2015 | |
| 26. | Italy | 3,772,180 | 2015 | |
| 138. | Jamaica | 242,386 | 2015 | |
| 15. | Japan | 7,471,754 | 2015 |
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