The World: Population - Age 30-34 (2019) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 45. | Afghanistan | 2,356,498 | 2019 | |
| 137. | Albania | 264,047 | 2019 | |
| 29. | Algeria | 3,608,368 | 2019 | |
| 201. | American Samoa | 5,192 | 2019 | |
| 207. | Andorra | 4,029 | 2019 | |
| 62. | Angola | 1,396,445 | 2019 | |
| 220. | Anguilla | 1,262 | 2019 | |
| 197. | Antigua and Barbuda | 6,866 | 2019 | |
| 32. | Argentina | 3,267,344 | 2019 | |
| 130. | Armenia | 299,054 | 2019 | |
| 192. | Aruba | 8,095 | 2019 | |
| 55. | Australia | 1,681,042 | 2019 | |
| 104. | Austria | 511,901 | 2019 | |
| 76. | Azerbaijan | 926,589 | 2019 | |
| 148. | Bahrain | 163,071 | 2019 | |
| 7. | Bangladesh | 13,340,607 | 2019 | |
| 182. | Barbados | 19,930 | 2019 | |
| 85. | Belarus | 797,627 | 2019 | |
| 93. | Belgium | 639,870 | 2019 | |
| 175. | Belize | 29,617 | 2019 | |
| 86. | Benin | 758,112 | 2019 | |
| 205. | Bermuda | 4,213 | 2019 | |
| 161. | Bhutan | 75,409 | 2019 | |
| 75. | Bolivia | 937,335 | 2019 | |
| 126. | Bosnia and Herzegovina | 329,608 | 2019 | |
| 143. | Botswana | 203,148 | 2019 | |
| 6. | Brazil | 17,054,316 | 2019 | |
| 213. | British Virgin Islands | 3,187 | 2019 | |
| 172. | Brunei | 44,707 | 2019 | |
| 112. | Bulgaria | 460,852 | 2019 | |
| 64. | Burkina Faso | 1,337,636 | 2019 | |
| 81. | Burundi | 837,254 | 2019 | |
| 60. | Cambodia | 1,559,902 | 2019 | |
| 53. | Cameroon | 1,714,180 | 2019 | |
| 44. | Canada | 2,394,169 | 2019 | |
| 170. | Cape Verde | 49,690 | 2019 | |
| 209. | Cayman Islands | 3,828 | 2019 | |
| 115. | Central African Republic | 424,687 | 2019 | |
| 80. | Chad | 840,903 | 2019 | |
| 191. | Channel Islands | 8,274 | 2019 | |
| 63. | Chile | 1,344,184 | 2019 | |
| 1. | China | 115,379,808 | 2019 | |
| 25. | Colombia | 3,828,402 | 2019 | |
| 163. | Comoros | 57,240 | 2019 | |
| 226. | Cook Islands | 432 | 2019 | |
| 114. | Costa Rica | 433,452 | 2019 | |
| 50. | Cote d'Ivoire | 1,930,111 | 2019 | |
| 133. | Croatia | 291,036 | 2019 | |
| 84. | Cuba | 801,658 | 2019 | |
| 157. | Cyprus | 106,469 | 2019 | |
| 90. | Czech Republic | 667,141 | 2019 | |
| 18. | Democratic Republic of the Congo | 5,933,686 | 2019 | |
| 127. | Denmark | 324,940 | 2019 | |
| 160. | Djibouti | 78,366 | 2019 | |
| 200. | Dominica | 5,538 | 2019 | |
| 82. | Dominican Republic | 833,141 | 2019 | |
| 155. | East Timor | 121,516 | 2019 | |
| 66. | Ecuador | 1,311,415 | 2019 | |
| 14. | Egypt | 7,662,495 | 2019 | |
| 110. | El Salvador | 476,321 | 2019 | |
| 164. | Equatorial Guinea | 54,674 | 2019 | |
| 108. | Eritrea | 480,117 | 2019 | |
| 158. | Estonia | 93,942 | 2019 | |
| 15. | Ethiopia | 7,368,327 | 2019 | |
| 212. | Faroe Islands | 3,216 | 2019 | |
| 193. | Federated States of Micronesia | 8,057 | 2019 | |
| 162. | Fiji | 72,105 | 2019 | |
| 128. | Finland | 318,433 | 2019 | |
| 24. | France | 4,152,368 | 2019 | |
| 177. | French Polynesia | 24,418 | 2019 | |
| 154. | Gabon | 123,624 | 2019 | |
| 150. | Gaza Strip | 146,661 | 2019 | |
| 119. | Georgia | 354,749 | 2019 | |
| 19. | Germany | 5,043,203 | 2019 | |
| 46. | Ghana | 2,328,028 | 2019 | |
| 216. | Gibraltar | 2,224 | 2019 | |
| 91. | Greece | 644,029 | 2019 | |
| 206. | Greenland | 4,193 | 2019 | |
| 189. | Grenada | 9,854 | 2019 | |
| 184. | Guam | 13,774 | 2019 | |
| 67. | Guatemala | 1,251,571 | 2019 | |
| 204. | Guernsey | 4,437 | 2019 | |
| 79. | Guinea | 843,258 | 2019 | |
| 151. | Guinea-Bissau | 131,661 | 2019 | |
| 167. | Guyana | 51,083 | 2019 | |
| 78. | Haiti | 847,948 | 2019 | |
| 87. | Honduras | 743,673 | 2019 | |
| 111. | Hong Kong | 461,630 | 2019 | |
| 94. | Hungary | 623,838 | 2019 | |
| 180. | Iceland | 21,710 | 2019 | |
| 2. | India | 101,547,712 | 2019 | |
| 4. | Indonesia | 19,936,706 | 2019 | |
| 11. | Iran | 9,076,952 | 2019 | |
| 39. | Iraq | 2,870,262 | 2019 | |
| 121. | Ireland | 350,107 | 2019 | |
| 202. | Isle of Man | 5,016 | 2019 | |
| 100. | Israel | 576,911 | 2019 | |
| 31. | Italy | 3,569,855 | 2019 | |
| 139. | Jamaica | 248,902 | 2019 | |
| 17. | Japan | 6,758,016 | 2019 |
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