The World: Population - Age 15-19 (2020) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 64. | Zimbabwe | 1,658,834 | 2020 | |
| 56. | Zambia | 1,971,384 | 2020 | |
| 33. | Yemen | 3,399,879 | 2020 | |
| 166. | Western Sahara | 66,755 | 2020 | |
| 121. | West Bank | 302,846 | 2020 | |
| 221. | Wallis and Futuna | 1,188 | 2020 | |
| 14. | Vietnam | 7,534,468 | 2020 | |
| 43. | Venezuela | 2,702,895 | 2020 | |
| 181. | Vanuatu | 21,747 | 2020 | |
| 52. | Uzbekistan | 2,410,680 | 2020 | |
| 131. | Uruguay | 246,266 | 2020 | |
| 5. | United States of America | 22,122,648 | 2020 | |
| 31. | United Kingdom | 3,589,804 | 2020 | |
| 116. | United Arab Emirates | 350,846 | 2020 | |
| 58. | Ukraine | 1,966,423 | 2020 | |
| 22. | Uganda | 5,255,521 | 2020 | |
| 198. | U.S. Virgin Islands | 6,256 | 2020 | |
| 222. | Tuvalu | 949 | 2020 | |
| 208. | Turks and Caicos Islands | 3,550 | 2020 | |
| 109. | Turkmenistan | 437,347 | 2020 | |
| 15. | Turkey | 6,999,416 | 2020 | |
| 87. | Tunisia | 777,900 | 2020 | |
| 163. | Trinidad and Tobago | 70,104 | 2020 | |
| 187. | Tonga | 10,994 | 2020 | |
| 83. | Togo | 879,361 | 2020 | |
| 136. | The Gambia | 227,490 | 2020 | |
| 178. | The Bahamas | 24,822 | 2020 | |
| 25. | Thailand | 4,316,729 | 2020 | |
| 20. | Tanzania | 5,762,160 | 2020 | |
| 84. | Tajikistan | 813,580 | 2020 | |
| 76. | Taiwan | 1,195,620 | 2020 | |
| 49. | Syria | 2,436,843 | 2020 | |
| 111. | Switzerland | 396,750 | 2020 | |
| 106. | Sweden | 491,048 | 2020 | |
| 146. | Swaziland | 171,400 | 2020 | |
| 169. | Suriname | 51,441 | 2020 | |
| 18. | Sudan | 5,977,637 | 2020 | |
| 61. | Sri Lanka | 1,760,193 | 2020 | |
| 46. | Spain | 2,532,968 | 2020 | |
| 48. | South Korea | 2,501,513 | 2020 | |
| 24. | South Africa | 4,549,124 | 2020 | |
| 73. | Somalia | 1,266,081 | 2020 | |
| 162. | Solomon Islands | 70,539 | 2020 | |
| 159. | Slovenia | 89,047 | 2020 | |
| 128. | Slovakia | 281,305 | 2020 | |
| 212. | Sint Maarten | 2,602 | 2020 | |
| 115. | Singapore | 369,899 | 2020 | |
| 92. | Sierra Leone | 681,417 | 2020 | |
| 199. | Seychelles | 5,886 | 2020 | |
| 113. | Serbia | 385,519 | 2020 | |
| 62. | Senegal | 1,719,188 | 2020 | |
| 50. | Saudi Arabia | 2,432,948 | 2020 | |
| 177. | Sao Tome and Principe | 25,117 | 2020 | |
| 215. | San Marino | 1,945 | 2020 | |
| 183. | Samoa | 20,924 | 2020 | |
| 195. | Saint Vincent and the Grenadines | 7,484 | 2020 | |
| 227. | Saint Pierre and Miquelon | 269 | 2020 | |
| 218. | Saint Martin | 1,636 | 2020 | |
| 189. | Saint Lucia | 10,822 | 2020 | |
| 209. | Saint Kitts and Nevis | 3,509 | 2020 | |
| 225. | Saint Helena | 466 | 2020 | |
| 228. | Saint Barthélemy | 205 | 2020 | |
| 65. | Rwanda | 1,542,387 | 2020 | |
| 16. | Russia | 6,940,326 | 2020 | |
| 79. | Romania | 1,061,563 | 2020 | |
| 97. | Republic of Congo | 609,896 | 2020 | |
| 154. | Qatar | 97,511 | 2020 | |
| 133. | Puerto Rico | 244,630 | 2020 | |
| 96. | Portugal | 612,845 | 2020 | |
| 60. | Poland | 1,786,313 | 2020 | |
| 10. | Philippines | 11,557,414 | 2020 | |
| 44. | Peru | 2,696,236 | 2020 | |
| 98. | Paraguay | 605,928 | 2020 | |
| 88. | Papua New Guinea | 746,997 | 2020 | |
| 119. | Panama | 322,031 | 2020 | |
| 217. | Palau | 1,785 | 2020 | |
| 6. | Pakistan | 21,955,908 | 2020 | |
| 124. | Oman | 295,666 | 2020 | |
| 125. | Norway | 291,083 | 2020 | |
| 211. | Northern Mariana Islands | 2,741 | 2020 | |
| 59. | North Korea | 1,829,568 | 2020 | |
| 3. | Nigeria | 22,955,900 | 2020 | |
| 47. | Niger | 2,513,733 | 2020 | |
| 99. | Nicaragua | 591,994 | 2020 | |
| 123. | New Zealand | 297,304 | 2020 | |
| 179. | New Caledonia | 21,915 | 2020 | |
| 191. | Netherlands Antilles | 9,969 | 2020 | |
| 80. | Netherlands | 1,011,182 | 2020 | |
| 34. | Nepal | 3,395,527 | 2020 | |
| 223. | Nauru | 838 | 2020 | |
| 132. | Namibia | 244,637 | 2020 | |
| 23. | Myanmar | 4,858,595 | 2020 | |
| 35. | Mozambique | 3,294,875 | 2020 | |
| 39. | Morocco | 2,873,559 | 2020 | |
| 226. | Montserrat | 371 | 2020 | |
| 175. | Montenegro | 29,536 | 2020 | |
| 130. | Mongolia | 272,071 | 2020 | |
| 219. | Monaco | 1,476 | 2020 | |
| 145. | Moldova | 185,155 | 2020 | |
| 11. | Mexico | 10,380,551 | 2020 |
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