The World: Population - Age 20-24 (2019) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 228. | Saint Pierre and Miquelon | 203 | 2019 | |
| 227. | Saint Barthélemy | 314 | 2019 | |
| 226. | Saint Helena | 484 | 2019 | |
| 225. | Cook Islands | 677 | 2019 | |
| 224. | Nauru | 756 | 2019 | |
| 223. | Montserrat | 775 | 2019 | |
| 222. | Tuvalu | 1,073 | 2019 | |
| 221. | Wallis and Futuna | 1,165 | 2019 | |
| 220. | Anguilla | 1,180 | 2019 | |
| 219. | Monaco | 1,466 | 2019 | |
| 218. | Saint Martin | 1,708 | 2019 | |
| 217. | Palau | 1,743 | 2019 | |
| 216. | San Marino | 1,983 | 2019 | |
| 215. | Gibraltar | 2,078 | 2019 | |
| 214. | Liechtenstein | 2,292 | 2019 | |
| 213. | British Virgin Islands | 2,510 | 2019 | |
| 212. | Northern Mariana Islands | 2,816 | 2019 | |
| 211. | Sint Maarten | 3,257 | 2019 | |
| 210. | Faroe Islands | 3,641 | 2019 | |
| 209. | Saint Kitts and Nevis | 3,727 | 2019 | |
| 208. | Cayman Islands | 3,749 | 2019 | |
| 207. | Turks and Caicos Islands | 3,834 | 2019 | |
| 206. | Guernsey | 3,847 | 2019 | |
| 205. | Andorra | 3,934 | 2019 | |
| 204. | Bermuda | 4,280 | 2019 | |
| 203. | Greenland | 4,482 | 2019 | |
| 202. | Isle of Man | 5,168 | 2019 | |
| 201. | Dominica | 5,335 | 2019 | |
| 200. | U.S. Virgin Islands | 5,837 | 2019 | |
| 199. | Seychelles | 6,125 | 2019 | |
| 198. | American Samoa | 6,674 | 2019 | |
| 197. | Marshall Islands | 6,766 | 2019 | |
| 196. | Saint Vincent and the Grenadines | 7,740 | 2019 | |
| 195. | Channel Islands | 7,743 | 2019 | |
| 194. | Aruba | 7,806 | 2019 | |
| 193. | Antigua and Barbuda | 8,077 | 2019 | |
| 192. | Grenada | 8,104 | 2019 | |
| 191. | Federated States of Micronesia | 9,307 | 2019 | |
| 190. | Tonga | 9,838 | 2019 | |
| 189. | Netherlands Antilles | 10,784 | 2019 | |
| 188. | Kiribati | 11,464 | 2019 | |
| 187. | Saint Lucia | 12,374 | 2019 | |
| 186. | Guam | 16,499 | 2019 | |
| 185. | Barbados | 18,285 | 2019 | |
| 184. | Samoa | 19,081 | 2019 | |
| 183. | Sao Tome and Principe | 19,717 | 2019 | |
| 182. | Mayotte | 21,350 | 2019 | |
| 181. | French Polynesia | 21,622 | 2019 | |
| 180. | Iceland | 22,181 | 2019 | |
| 179. | Vanuatu | 22,243 | 2019 | |
| 178. | New Caledonia | 23,205 | 2019 | |
| 177. | Malta | 24,431 | 2019 | |
| 176. | The Bahamas | 27,548 | 2019 | |
| 175. | Montenegro | 29,710 | 2019 | |
| 174. | Luxembourg | 35,507 | 2019 | |
| 173. | Macau | 35,993 | 2019 | |
| 172. | Belize | 36,796 | 2019 | |
| 171. | Brunei | 40,228 | 2019 | |
| 170. | Maldives | 41,094 | 2019 | |
| 169. | Suriname | 51,789 | 2019 | |
| 168. | Cape Verde | 55,476 | 2019 | |
| 167. | Estonia | 56,473 | 2019 | |
| 166. | Western Sahara | 58,597 | 2019 | |
| 165. | Solomon Islands | 64,042 | 2019 | |
| 164. | Trinidad and Tobago | 67,120 | 2019 | |
| 163. | Bhutan | 70,876 | 2019 | |
| 162. | Fiji | 74,046 | 2019 | |
| 161. | Comoros | 74,589 | 2019 | |
| 160. | Equatorial Guinea | 75,066 | 2019 | |
| 159. | Guyana | 79,841 | 2019 | |
| 158. | Latvia | 90,627 | 2019 | |
| 157. | Cyprus | 91,920 | 2019 | |
| 156. | Slovenia | 93,040 | 2019 | |
| 155. | Djibouti | 95,154 | 2019 | |
| 154. | Mauritius | 98,323 | 2019 | |
| 153. | East Timor | 124,098 | 2019 | |
| 152. | Bahrain | 125,496 | 2019 | |
| 151. | Macedonia | 145,916 | 2019 | |
| 150. | Kosovo | 160,056 | 2019 | |
| 149. | Swaziland | 160,234 | 2019 | |
| 148. | Gabon | 175,451 | 2019 | |
| 147. | Guinea-Bissau | 176,802 | 2019 | |
| 146. | Lesotho | 182,485 | 2019 | |
| 145. | Lithuania | 186,361 | 2019 | |
| 144. | Gaza Strip | 188,777 | 2019 | |
| 143. | Qatar | 191,591 | 2019 | |
| 142. | Armenia | 202,146 | 2019 | |
| 141. | Moldova | 206,272 | 2019 | |
| 140. | The Gambia | 207,243 | 2019 | |
| 139. | Botswana | 236,424 | 2019 | |
| 138. | Namibia | 257,093 | 2019 | |
| 137. | Kuwait | 259,852 | 2019 | |
| 136. | Georgia | 262,543 | 2019 | |
| 135. | Puerto Rico | 265,037 | 2019 | |
| 134. | Bosnia and Herzegovina | 265,950 | 2019 | |
| 133. | Uruguay | 268,507 | 2019 | |
| 132. | Croatia | 270,868 | 2019 | |
| 131. | Albania | 275,012 | 2019 | |
| 130. | Mongolia | 288,444 | 2019 | |
| 129. | Slovakia | 297,889 | 2019 |
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