The World: Population - Age 15-19 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 228. | Saint Barthélemy | 205 | 2020 | |
| 227. | Saint Pierre and Miquelon | 269 | 2020 | |
| 226. | Montserrat | 371 | 2020 | |
| 225. | Saint Helena | 466 | 2020 | |
| 224. | Cook Islands | 637 | 2020 | |
| 223. | Nauru | 838 | 2020 | |
| 222. | Tuvalu | 949 | 2020 | |
| 221. | Wallis and Futuna | 1,188 | 2020 | |
| 220. | Anguilla | 1,281 | 2020 | |
| 219. | Monaco | 1,476 | 2020 | |
| 218. | Saint Martin | 1,636 | 2020 | |
| 217. | Palau | 1,785 | 2020 | |
| 216. | Gibraltar | 1,866 | 2020 | |
| 215. | San Marino | 1,945 | 2020 | |
| 214. | Liechtenstein | 2,085 | 2020 | |
| 213. | British Virgin Islands | 2,144 | 2020 | |
| 212. | Sint Maarten | 2,602 | 2020 | |
| 211. | Northern Mariana Islands | 2,741 | 2020 | |
| 210. | Guernsey | 3,270 | 2020 | |
| 209. | Saint Kitts and Nevis | 3,509 | 2020 | |
| 208. | Turks and Caicos Islands | 3,550 | 2020 | |
| 207. | Faroe Islands | 3,553 | 2020 | |
| 206. | Cayman Islands | 3,578 | 2020 | |
| 205. | Greenland | 4,012 | 2020 | |
| 204. | Bermuda | 4,237 | 2020 | |
| 203. | Andorra | 4,587 | 2020 | |
| 202. | Dominica | 4,752 | 2020 | |
| 201. | Isle of Man | 4,849 | 2020 | |
| 200. | Channel Islands | 5,581 | 2020 | |
| 199. | Seychelles | 5,886 | 2020 | |
| 198. | U.S. Virgin Islands | 6,256 | 2020 | |
| 197. | Aruba | 6,736 | 2020 | |
| 196. | American Samoa | 6,846 | 2020 | |
| 195. | Saint Vincent and the Grenadines | 7,484 | 2020 | |
| 194. | Antigua and Barbuda | 7,645 | 2020 | |
| 193. | Marshall Islands | 7,829 | 2020 | |
| 192. | Grenada | 8,225 | 2020 | |
| 191. | Netherlands Antilles | 9,969 | 2020 | |
| 190. | Federated States of Micronesia | 10,294 | 2020 | |
| 189. | Saint Lucia | 10,822 | 2020 | |
| 188. | Kiribati | 10,940 | 2020 | |
| 187. | Tonga | 10,994 | 2020 | |
| 186. | Guam | 16,551 | 2020 | |
| 185. | Barbados | 18,125 | 2020 | |
| 184. | Malta | 20,447 | 2020 | |
| 183. | Samoa | 20,924 | 2020 | |
| 182. | Iceland | 20,990 | 2020 | |
| 181. | Vanuatu | 21,747 | 2020 | |
| 180. | French Polynesia | 21,883 | 2020 | |
| 179. | New Caledonia | 21,915 | 2020 | |
| 178. | The Bahamas | 24,822 | 2020 | |
| 177. | Sao Tome and Principe | 25,117 | 2020 | |
| 176. | Maldives | 29,027 | 2020 | |
| 175. | Montenegro | 29,536 | 2020 | |
| 174. | Mayotte | 30,478 | 2020 | |
| 173. | Macau | 30,809 | 2020 | |
| 172. | Luxembourg | 33,196 | 2020 | |
| 171. | Brunei | 34,761 | 2020 | |
| 170. | Belize | 38,953 | 2020 | |
| 169. | Suriname | 51,441 | 2020 | |
| 168. | Cape Verde | 54,304 | 2020 | |
| 167. | Estonia | 61,757 | 2020 | |
| 166. | Western Sahara | 66,755 | 2020 | |
| 165. | Cyprus | 67,074 | 2020 | |
| 164. | Bhutan | 68,536 | 2020 | |
| 163. | Trinidad and Tobago | 70,104 | 2020 | |
| 162. | Solomon Islands | 70,539 | 2020 | |
| 161. | Fiji | 73,108 | 2020 | |
| 160. | Guyana | 79,900 | 2020 | |
| 159. | Slovenia | 89,047 | 2020 | |
| 158. | Equatorial Guinea | 89,386 | 2020 | |
| 157. | Djibouti | 91,052 | 2020 | |
| 156. | Latvia | 94,232 | 2020 | |
| 155. | Mauritius | 96,378 | 2020 | |
| 154. | Qatar | 97,511 | 2020 | |
| 153. | Comoros | 98,052 | 2020 | |
| 152. | Bahrain | 101,101 | 2020 | |
| 151. | Macedonia | 122,956 | 2020 | |
| 150. | East Timor | 127,654 | 2020 | |
| 149. | Lithuania | 150,068 | 2020 | |
| 148. | Armenia | 155,504 | 2020 | |
| 147. | Kosovo | 163,747 | 2020 | |
| 146. | Swaziland | 171,400 | 2020 | |
| 145. | Moldova | 185,155 | 2020 | |
| 144. | Kuwait | 187,717 | 2020 | |
| 143. | Lesotho | 196,554 | 2020 | |
| 142. | Bosnia and Herzegovina | 196,944 | 2020 | |
| 141. | Guinea-Bissau | 201,943 | 2020 | |
| 140. | Gabon | 209,120 | 2020 | |
| 139. | Albania | 211,389 | 2020 | |
| 138. | Georgia | 214,474 | 2020 | |
| 137. | Croatia | 215,935 | 2020 | |
| 136. | The Gambia | 227,490 | 2020 | |
| 135. | Botswana | 237,250 | 2020 | |
| 134. | Gaza Strip | 237,550 | 2020 | |
| 133. | Puerto Rico | 244,630 | 2020 | |
| 132. | Namibia | 244,637 | 2020 | |
| 131. | Uruguay | 246,266 | 2020 | |
| 130. | Mongolia | 272,071 | 2020 | |
| 129. | Hong Kong | 274,689 | 2020 |
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