The World: Population - Age 0-4 (2016) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 57. | Zimbabwe | 2,095,133 | 2016 | |
| 46. | Zambia | 2,940,511 | 2016 | |
| 34. | Yemen | 3,771,275 | 2016 | |
| 162. | Western Sahara | 80,003 | 2016 | |
| 120. | West Bank | 314,301 | 2016 | |
| 222. | Wallis and Futuna | 1,076 | 2016 | |
| 16. | Vietnam | 7,451,267 | 2016 | |
| 50. | Venezuela | 2,740,248 | 2016 | |
| 179. | Vanuatu | 22,177 | 2016 | |
| 55. | Uzbekistan | 2,399,817 | 2016 | |
| 140. | Uruguay | 217,823 | 2016 | |
| 4. | United States of America | 21,892,576 | 2016 | |
| 32. | United Kingdom | 3,874,338 | 2016 | |
| 108. | United Arab Emirates | 470,803 | 2016 | |
| 58. | Ukraine | 2,077,147 | 2016 | |
| 14. | Uganda | 8,281,896 | 2016 | |
| 199. | U.S. Virgin Islands | 6,062 | 2016 | |
| 219. | Tuvalu | 1,190 | 2016 | |
| 205. | Turks and Caicos Islands | 4,055 | 2016 | |
| 105. | Turkmenistan | 479,951 | 2016 | |
| 19. | Turkey | 6,749,846 | 2016 | |
| 87. | Tunisia | 897,242 | 2016 | |
| 161. | Trinidad and Tobago | 81,109 | 2016 | |
| 187. | Tonga | 11,977 | 2016 | |
| 77. | Togo | 1,183,527 | 2016 | |
| 128. | The Gambia | 272,733 | 2016 | |
| 178. | The Bahamas | 24,846 | 2016 | |
| 28. | Thailand | 4,185,213 | 2016 | |
| 20. | Tanzania | 6,285,094 | 2016 | |
| 83. | Tajikistan | 959,579 | 2016 | |
| 79. | Taiwan | 1,003,345 | 2016 | |
| 53. | Syria | 2,487,728 | 2016 | |
| 115. | Switzerland | 365,291 | 2016 | |
| 107. | Sweden | 475,157 | 2016 | |
| 147. | Swaziland | 168,642 | 2016 | |
| 169. | Suriname | 46,727 | 2016 | |
| 15. | Sudan | 7,754,867 | 2016 | |
| 68. | Sri Lanka | 1,765,265 | 2016 | |
| 54. | Spain | 2,418,162 | 2016 | |
| 60. | South Korea | 2,026,246 | 2016 | |
| 25. | South Africa | 4,388,657 | 2016 | |
| 65. | Somalia | 1,815,492 | 2016 | |
| 163. | Solomon Islands | 77,067 | 2016 | |
| 160. | Slovenia | 85,179 | 2016 | |
| 126. | Slovakia | 278,326 | 2016 | |
| 213. | Sint Maarten | 2,587 | 2016 | |
| 135. | Singapore | 237,536 | 2016 | |
| 82. | Sierra Leone | 965,043 | 2016 | |
| 198. | Seychelles | 6,400 | 2016 | |
| 118. | Serbia | 327,595 | 2016 | |
| 56. | Senegal | 2,212,206 | 2016 | |
| 52. | Saudi Arabia | 2,545,865 | 2016 | |
| 174. | Sao Tome and Principe | 30,026 | 2016 | |
| 217. | San Marino | 1,532 | 2016 | |
| 184. | Samoa | 20,147 | 2016 | |
| 196. | Saint Vincent and the Grenadines | 6,936 | 2016 | |
| 228. | Saint Pierre and Miquelon | 234 | 2016 | |
| 212. | Saint Martin | 2,739 | 2016 | |
| 188. | Saint Lucia | 11,017 | 2016 | |
| 209. | Saint Kitts and Nevis | 3,531 | 2016 | |
| 225. | Saint Helena | 387 | 2016 | |
| 226. | Saint Barthélemy | 354 | 2016 | |
| 61. | Rwanda | 1,975,889 | 2016 | |
| 17. | Russia | 7,233,384 | 2016 | |
| 80. | Romania | 1,002,415 | 2016 | |
| 90. | Republic of Congo | 821,958 | 2016 | |
| 153. | Qatar | 106,594 | 2016 | |
| 139. | Puerto Rico | 217,852 | 2016 | |
| 103. | Portugal | 516,505 | 2016 | |
| 64. | Poland | 1,867,999 | 2016 | |
| 10. | Philippines | 12,751,535 | 2016 | |
| 51. | Peru | 2,733,873 | 2016 | |
| 98. | Paraguay | 547,789 | 2016 | |
| 93. | Papua New Guinea | 779,835 | 2016 | |
| 117. | Panama | 331,554 | 2016 | |
| 220. | Palau | 1,142 | 2016 | |
| 5. | Pakistan | 21,270,552 | 2016 | |
| 112. | Oman | 384,112 | 2016 | |
| 133. | Norway | 257,916 | 2016 | |
| 203. | Northern Mariana Islands | 4,112 | 2016 | |
| 70. | North Korea | 1,750,572 | 2016 | |
| 3. | Nigeria | 30,809,368 | 2016 | |
| 31. | Niger | 3,881,077 | 2016 | |
| 100. | Nicaragua | 525,873 | 2016 | |
| 123. | New Zealand | 294,244 | 2016 | |
| 183. | New Caledonia | 20,709 | 2016 | |
| 191. | Netherlands Antilles | 9,950 | 2016 | |
| 86. | Netherlands | 914,940 | 2016 | |
| 40. | Nepal | 3,121,242 | 2016 | |
| 221. | Nauru | 1,132 | 2016 | |
| 143. | Namibia | 211,377 | 2016 | |
| 24. | Myanmar | 4,934,827 | 2016 | |
| 26. | Mozambique | 4,354,754 | 2016 | |
| 45. | Morocco | 2,947,081 | 2016 | |
| 227. | Montserrat | 291 | 2016 | |
| 172. | Montenegro | 33,689 | 2016 | |
| 119. | Mongolia | 314,507 | 2016 | |
| 223. | Monaco | 976 | 2016 | |
| 141. | Moldova | 215,686 | 2016 | |
| 12. | Mexico | 10,510,134 | 2016 |
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