The World: Population - Age 45-49 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 101. | Zimbabwe | 392,026 | 2018 | |
| 94. | Zambia | 467,093 | 2018 | |
| 61. | Yemen | 867,512 | 2018 | |
| 173. | Western Sahara | 26,807 | 2018 | |
| 141. | West Bank | 146,316 | 2018 | |
| 221. | Wallis and Futuna | 1,040 | 2018 | |
| 12. | Vietnam | 6,268,678 | 2018 | |
| 41. | Venezuela | 1,753,206 | 2018 | |
| 182. | Vanuatu | 13,659 | 2018 | |
| 45. | Uzbekistan | 1,695,850 | 2018 | |
| 131. | Uruguay | 205,292 | 2018 | |
| 3. | United States of America | 20,922,296 | 2018 | |
| 20. | United Kingdom | 4,479,936 | 2018 | |
| 102. | United Arab Emirates | 389,861 | 2018 | |
| 27. | Ukraine | 2,972,684 | 2018 | |
| 54. | Uganda | 1,126,347 | 2018 | |
| 191. | U.S. Virgin Islands | 7,534 | 2018 | |
| 227. | Tuvalu | 409 | 2018 | |
| 204. | Turks and Caicos Islands | 4,480 | 2018 | |
| 118. | Turkmenistan | 303,159 | 2018 | |
| 15. | Turkey | 5,472,657 | 2018 | |
| 67. | Tunisia | 808,808 | 2018 | |
| 153. | Trinidad and Tobago | 75,127 | 2018 | |
| 198. | Tonga | 5,791 | 2018 | |
| 117. | Togo | 307,236 | 2018 | |
| 152. | The Gambia | 79,312 | 2018 | |
| 175. | The Bahamas | 24,092 | 2018 | |
| 16. | Thailand | 5,122,755 | 2018 | |
| 44. | Tanzania | 1,701,408 | 2018 | |
| 95. | Tajikistan | 423,696 | 2018 | |
| 39. | Taiwan | 1,775,603 | 2018 | |
| 53. | Syria | 1,178,794 | 2018 | |
| 81. | Switzerland | 569,569 | 2018 | |
| 78. | Sweden | 601,811 | 2018 | |
| 161. | Swaziland | 47,984 | 2018 | |
| 164. | Suriname | 40,051 | 2018 | |
| 33. | Sudan | 2,151,915 | 2018 | |
| 49. | Sri Lanka | 1,423,471 | 2018 | |
| 23. | Spain | 4,141,002 | 2018 | |
| 22. | South Korea | 4,217,751 | 2018 | |
| 34. | South Africa | 2,116,029 | 2018 | |
| 90. | Somalia | 475,102 | 2018 | |
| 170. | Solomon Islands | 32,222 | 2018 | |
| 143. | Slovenia | 142,020 | 2018 | |
| 104. | Slovakia | 382,932 | 2018 | |
| 208. | Sint Maarten | 3,553 | 2018 | |
| 100. | Singapore | 402,509 | 2018 | |
| 125. | Sierra Leone | 257,171 | 2018 | |
| 190. | Seychelles | 7,563 | 2018 | |
| 86. | Serbia | 489,527 | 2018 | |
| 83. | Senegal | 543,716 | 2018 | |
| 48. | Saudi Arabia | 1,562,899 | 2018 | |
| 192. | Sao Tome and Principe | 7,144 | 2018 | |
| 215. | San Marino | 2,662 | 2018 | |
| 185. | Samoa | 10,273 | 2018 | |
| 193. | Saint Vincent and the Grenadines | 6,945 | 2018 | |
| 225. | Saint Pierre and Miquelon | 546 | 2018 | |
| 217. | Saint Martin | 1,909 | 2018 | |
| 184. | Saint Lucia | 11,994 | 2018 | |
| 207. | Saint Kitts and Nevis | 3,760 | 2018 | |
| 222. | Saint Helena | 760 | 2018 | |
| 224. | Saint Barthélemy | 547 | 2018 | |
| 93. | Rwanda | 472,622 | 2018 | |
| 9. | Russia | 8,831,728 | 2018 | |
| 40. | Romania | 1,764,527 | 2018 | |
| 135. | Republic of Congo | 171,099 | 2018 | |
| 133. | Qatar | 181,671 | 2018 | |
| 123. | Puerto Rico | 266,188 | 2018 | |
| 66. | Portugal | 809,932 | 2018 | |
| 29. | Poland | 2,508,961 | 2018 | |
| 14. | Philippines | 5,635,285 | 2018 | |
| 38. | Peru | 1,815,624 | 2018 | |
| 99. | Paraguay | 403,994 | 2018 | |
| 109. | Papua New Guinea | 353,420 | 2018 | |
| 127. | Panama | 232,886 | 2018 | |
| 218. | Palau | 1,731 | 2018 | |
| 6. | Pakistan | 9,647,132 | 2018 | |
| 140. | Oman | 148,149 | 2018 | |
| 110. | Norway | 348,361 | 2018 | |
| 209. | Northern Mariana Islands | 3,476 | 2018 | |
| 35. | North Korea | 2,115,092 | 2018 | |
| 11. | Nigeria | 7,018,484 | 2018 | |
| 77. | Niger | 618,231 | 2018 | |
| 115. | Nicaragua | 314,327 | 2018 | |
| 113. | New Zealand | 320,381 | 2018 | |
| 180. | New Caledonia | 19,988 | 2018 | |
| 188. | Netherlands Antilles | 8,193 | 2018 | |
| 52. | Netherlands | 1,245,305 | 2018 | |
| 46. | Nepal | 1,601,381 | 2018 | |
| 226. | Nauru | 503 | 2018 | |
| 149. | Namibia | 83,741 | 2018 | |
| 24. | Myanmar | 3,559,395 | 2018 | |
| 65. | Mozambique | 830,813 | 2018 | |
| 36. | Morocco | 2,061,588 | 2018 | |
| 228. | Montserrat | 406 | 2018 | |
| 162. | Montenegro | 47,175 | 2018 | |
| 129. | Mongolia | 217,539 | 2018 | |
| 216. | Monaco | 2,040 | 2018 | |
| 130. | Moldova | 207,824 | 2018 | |
| 10. | Mexico | 7,725,601 | 2018 |
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