The World: Population - Age 20-24 (2015) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 101. | Libya | 594,720 | 2015 | |
| 102. | Czech Republic | 593,014 | 2015 | |
| 103. | Singapore | 586,026 | 2015 | |
| 104. | Kyrgyzstan | 568,735 | 2015 | |
| 105. | Turkmenistan | 544,926 | 2015 | |
| 106. | Greece | 537,139 | 2015 | |
| 107. | Sierra Leone | 516,048 | 2015 | |
| 108. | Central African Republic | 511,551 | 2015 | |
| 109. | Austria | 503,763 | 2015 | |
| 110. | United Arab Emirates | 489,621 | 2015 | |
| 111. | Switzerland | 477,568 | 2015 | |
| 112. | Republic of Congo | 449,857 | 2015 | |
| 113. | Serbia | 433,034 | 2015 | |
| 114. | Costa Rica | 422,482 | 2015 | |
| 115. | Hong Kong | 405,983 | 2015 | |
| 116. | Denmark | 370,901 | 2015 | |
| 117. | Bulgaria | 366,098 | 2015 | |
| 118. | Slovakia | 358,738 | 2015 | |
| 119. | Lebanon | 357,299 | 2015 | |
| 120. | Mauritania | 334,407 | 2015 | |
| 121. | Finland | 331,936 | 2015 | |
| 122. | Oman | 331,801 | 2015 | |
| 123. | Georgia | 322,044 | 2015 | |
| 124. | Norway | 319,631 | 2015 | |
| 125. | Jamaica | 318,085 | 2015 | |
| 126. | New Zealand | 310,405 | 2015 | |
| 127. | Liberia | 305,312 | 2015 | |
| 128. | Panama | 303,230 | 2015 | |
| 129. | Mongolia | 299,334 | 2015 | |
| 130. | Albania | 295,280 | 2015 | |
| 131. | West Bank | 291,060 | 2015 | |
| 132. | Ireland | 285,493 | 2015 | |
| 133. | Bosnia and Herzegovina | 283,709 | 2015 | |
| 134. | Puerto Rico | 275,517 | 2015 | |
| 135. | Armenia | 274,297 | 2015 | |
| 136. | Croatia | 271,027 | 2015 | |
| 137. | Moldova | 265,916 | 2015 | |
| 138. | Uruguay | 261,507 | 2015 | |
| 139. | Namibia | 248,873 | 2015 | |
| 140. | Kuwait | 248,648 | 2015 | |
| 141. | Lithuania | 236,579 | 2015 | |
| 142. | Botswana | 232,420 | 2015 | |
| 143. | The Gambia | 198,238 | 2015 | |
| 144. | Qatar | 195,565 | 2015 | |
| 145. | Lesotho | 191,347 | 2015 | |
| 146. | Gaza Strip | 185,342 | 2015 | |
| 147. | Guinea-Bissau | 163,752 | 2015 | |
| 148. | Kosovo | 163,446 | 2015 | |
| 149. | Gabon | 160,643 | 2015 | |
| 150. | Swaziland | 156,472 | 2015 | |
| 151. | Macedonia | 148,212 | 2015 | |
| 152. | Latvia | 131,572 | 2015 | |
| 153. | East Timor | 127,143 | 2015 | |
| 154. | Bahrain | 116,745 | 2015 | |
| 155. | Mauritius | 107,200 | 2015 | |
| 156. | Slovenia | 102,288 | 2015 | |
| 157. | Cyprus | 101,258 | 2015 | |
| 158. | Djibouti | 90,910 | 2015 | |
| 159. | Trinidad and Tobago | 80,822 | 2015 | |
| 160. | Fiji | 76,060 | 2015 | |
| 161. | Bhutan | 75,151 | 2015 | |
| 162. | Guyana | 73,020 | 2015 | |
| 163. | Estonia | 72,120 | 2015 | |
| 164. | Equatorial Guinea | 66,810 | 2015 | |
| 165. | Comoros | 66,792 | 2015 | |
| 166. | Solomon Islands | 58,732 | 2015 | |
| 167. | Cape Verde | 56,971 | 2015 | |
| 168. | Western Sahara | 53,015 | 2015 | |
| 169. | Maldives | 50,918 | 2015 | |
| 170. | Suriname | 47,863 | 2015 | |
| 171. | Macau | 44,803 | 2015 | |
| 172. | Brunei | 37,775 | 2015 | |
| 173. | Montenegro | 36,144 | 2015 | |
| 174. | Belize | 35,003 | 2015 | |
| 175. | Luxembourg | 33,943 | 2015 | |
| 176. | The Bahamas | 28,377 | 2015 | |
| 177. | Malta | 26,622 | 2015 | |
| 178. | French Polynesia | 23,717 | 2015 | |
| 179. | Iceland | 23,462 | 2015 | |
| 180. | New Caledonia | 22,980 | 2015 | |
| 181. | Vanuatu | 22,903 | 2015 | |
| 182. | Barbados | 20,446 | 2015 | |
| 183. | Samoa | 18,840 | 2015 | |
| 184. | Sao Tome and Principe | 16,906 | 2015 | |
| 185. | Mayotte | 16,450 | 2015 | |
| 186. | Guam | 16,038 | 2015 | |
| 187. | Saint Lucia | 13,534 | 2015 | |
| 188. | Netherlands Antilles | 11,332 | 2015 | |
| 189. | Kiribati | 10,525 | 2015 | |
| 190. | Federated States of Micronesia | 9,699 | 2015 | |
| 191. | Tonga | 9,427 | 2015 | |
| 192. | Grenada | 8,956 | 2015 | |
| 193. | Saint Vincent and the Grenadines | 8,422 | 2015 | |
| 194. | Channel Islands | 7,645 | 2015 | |
| 195. | Aruba | 7,495 | 2015 | |
| 196. | American Samoa | 7,347 | 2015 | |
| 197. | Antigua and Barbuda | 7,330 | 2015 | |
| 198. | Seychelles | 6,776 | 2015 | |
| 199. | U.S. Virgin Islands | 6,678 | 2015 | |
| 200. | Dominica | 6,388 | 2015 |
