The World: Population - Age 15-19 (2015) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 63. | Zimbabwe | 1,566,379 | 2015 | |
| 61. | Zambia | 1,689,921 | 2015 | |
| 35. | Yemen | 3,017,925 | 2015 | |
| 167. | Western Sahara | 59,021 | 2015 | |
| 123. | West Bank | 308,425 | 2015 | |
| 220. | Wallis and Futuna | 1,332 | 2015 | |
| 14. | Vietnam | 7,559,911 | 2015 | |
| 41. | Venezuela | 2,749,665 | 2015 | |
| 181. | Vanuatu | 22,331 | 2015 | |
| 42. | Uzbekistan | 2,701,664 | 2015 | |
| 133. | Uruguay | 269,644 | 2015 | |
| 5. | United States of America | 20,909,270 | 2015 | |
| 30. | United Kingdom | 3,723,637 | 2015 | |
| 127. | United Arab Emirates | 294,777 | 2015 | |
| 52. | Ukraine | 2,101,139 | 2015 | |
| 25. | Uganda | 4,475,599 | 2015 | |
| 198. | U.S. Virgin Islands | 6,719 | 2015 | |
| 222. | Tuvalu | 1,079 | 2015 | |
| 209. | Turks and Caicos Islands | 3,522 | 2015 | |
| 106. | Turkmenistan | 483,331 | 2015 | |
| 15. | Turkey | 6,919,163 | 2015 | |
| 83. | Tunisia | 803,574 | 2015 | |
| 163. | Trinidad and Tobago | 73,015 | 2015 | |
| 190. | Tonga | 11,281 | 2015 | |
| 86. | Togo | 765,127 | 2015 | |
| 140. | The Gambia | 211,174 | 2015 | |
| 176. | The Bahamas | 27,277 | 2015 | |
| 22. | Thailand | 4,782,425 | 2015 | |
| 20. | Tanzania | 5,407,185 | 2015 | |
| 84. | Tajikistan | 802,999 | 2015 | |
| 66. | Taiwan | 1,502,670 | 2015 | |
| 48. | Syria | 2,403,179 | 2015 | |
| 111. | Switzerland | 435,168 | 2015 | |
| 105. | Sweden | 483,363 | 2015 | |
| 149. | Swaziland | 163,144 | 2015 | |
| 169. | Suriname | 53,456 | 2015 | |
| 19. | Sudan | 5,428,802 | 2015 | |
| 62. | Sri Lanka | 1,594,143 | 2015 | |
| 51. | Spain | 2,226,585 | 2015 | |
| 34. | South Korea | 3,211,506 | 2015 | |
| 23. | South Africa | 4,680,621 | 2015 | |
| 78. | Somalia | 1,112,199 | 2015 | |
| 165. | Solomon Islands | 65,816 | 2015 | |
| 154. | Slovenia | 91,390 | 2015 | |
| 129. | Slovakia | 289,658 | 2015 | |
| 211. | Sint Maarten | 3,243 | 2015 | |
| 112. | Singapore | 403,112 | 2015 | |
| 99. | Sierra Leone | 581,518 | 2015 | |
| 200. | Seychelles | 6,089 | 2015 | |
| 114. | Serbia | 389,629 | 2015 | |
| 64. | Senegal | 1,523,719 | 2015 | |
| 47. | Saudi Arabia | 2,525,530 | 2015 | |
| 183. | Sao Tome and Principe | 21,945 | 2015 | |
| 216. | San Marino | 1,944 | 2015 | |
| 184. | Samoa | 20,630 | 2015 | |
| 193. | Saint Vincent and the Grenadines | 8,499 | 2015 | |
| 227. | Saint Pierre and Miquelon | 281 | 2015 | |
| 218. | Saint Martin | 1,587 | 2015 | |
| 187. | Saint Lucia | 13,184 | 2015 | |
| 206. | Saint Kitts and Nevis | 3,995 | 2015 | |
| 226. | Saint Helena | 488 | 2015 | |
| 228. | Saint Barthélemy | 204 | 2015 | |
| 71. | Rwanda | 1,334,227 | 2015 | |
| 16. | Russia | 6,282,786 | 2015 | |
| 77. | Romania | 1,138,634 | 2015 | |
| 101. | Republic of Congo | 535,270 | 2015 | |
| 157. | Qatar | 88,807 | 2015 | |
| 131. | Puerto Rico | 278,019 | 2015 | |
| 97. | Portugal | 611,458 | 2015 | |
| 57. | Poland | 1,973,454 | 2015 | |
| 9. | Philippines | 10,861,379 | 2015 | |
| 40. | Peru | 2,844,275 | 2015 | |
| 91. | Paraguay | 678,558 | 2015 | |
| 90. | Papua New Guinea | 700,885 | 2015 | |
| 117. | Panama | 325,816 | 2015 | |
| 217. | Palau | 1,812 | 2015 | |
| 4. | Pakistan | 22,013,400 | 2015 | |
| 122. | Oman | 309,479 | 2015 | |
| 121. | Norway | 312,070 | 2015 | |
| 212. | Northern Mariana Islands | 3,037 | 2015 | |
| 58. | North Korea | 1,948,601 | 2015 | |
| 6. | Nigeria | 19,296,292 | 2015 | |
| 54. | Niger | 2,048,368 | 2015 | |
| 95. | Nicaragua | 637,402 | 2015 | |
| 126. | New Zealand | 299,389 | 2015 | |
| 179. | New Caledonia | 22,903 | 2015 | |
| 191. | Netherlands Antilles | 10,472 | 2015 | |
| 80. | Netherlands | 1,003,134 | 2015 | |
| 31. | Nepal | 3,660,908 | 2015 | |
| 224. | Nauru | 798 | 2015 | |
| 134. | Namibia | 262,486 | 2015 | |
| 21. | Myanmar | 5,019,088 | 2015 | |
| 37. | Mozambique | 2,942,996 | 2015 | |
| 38. | Morocco | 2,933,264 | 2015 | |
| 225. | Montserrat | 735 | 2015 | |
| 175. | Montenegro | 30,313 | 2015 | |
| 130. | Mongolia | 284,183 | 2015 | |
| 219. | Monaco | 1,388 | 2015 | |
| 139. | Moldova | 212,656 | 2015 | |
| 11. | Mexico | 10,610,584 | 2015 |
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