The World: Population - Age 15-19 (2026) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 26. | Thailand | 4,255,526 | 2026 (Est.) | |
| 178. | The Bahamas | 24,743 | 2026 (Est.) | |
| 133. | The Gambia | 250,541 | 2026 (Est.) | |
| 79. | Togo | 1,033,538 | 2026 (Est.) | |
| 189. | Tonga | 9,969 | 2026 (Est.) | |
| 162. | Trinidad and Tobago | 74,153 | 2026 (Est.) | |
| 86. | Tunisia | 861,194 | 2026 (Est.) | |
| 16. | Turkey | 6,932,830 | 2026 (Est.) | |
| 110. | Turkmenistan | 441,735 | 2026 (Est.) | |
| 204. | Turks and Caicos Islands | 4,087 | 2026 (Est.) | |
| 222. | Tuvalu | 960 | 2026 (Est.) | |
| 199. | U.S. Virgin Islands | 5,533 | 2026 (Est.) | |
| 19. | Uganda | 6,590,865 | 2026 (Est.) | |
| 57. | Ukraine | 2,150,592 | 2026 (Est.) | |
| 111. | United Arab Emirates | 419,328 | 2026 (Est.) | |
| 29. | United Kingdom | 3,981,460 | 2026 (Est.) | |
| 4. | United States of America | 23,170,296 | 2026 (Est.) | |
| 136. | Uruguay | 224,432 | 2026 (Est.) | |
| 54. | Uzbekistan | 2,278,081 | 2026 (Est.) | |
| 180. | Vanuatu | 21,521 | 2026 (Est.) | |
| 49. | Venezuela | 2,682,909 | 2026 (Est.) | |
| 15. | Vietnam | 7,573,939 | 2026 (Est.) | |
| 221. | Wallis and Futuna | 997 | 2026 (Est.) | |
| 123. | West Bank | 305,918 | 2026 (Est.) | |
| 161. | Western Sahara | 76,000 | 2026 (Est.) | |
| 32. | Yemen | 3,667,588 | 2026 (Est.) | |
| 52. | Zambia | 2,443,238 | 2026 (Est.) | |
| 66. | Zimbabwe | 1,695,090 | 2026 (Est.) |
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