The World: Population - Age 0-4 (2021) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 1. | India | 116,153,152 | 2021 | |
| 2. | China | 77,232,272 | 2021 | |
| 3. | Nigeria | 33,565,992 | 2021 | |
| 4. | United States of America | 22,506,398 | 2021 | |
| 5. | Ethiopia | 21,482,680 | 2021 | |
| 6. | Pakistan | 21,053,992 | 2021 | |
| 7. | Indonesia | 20,524,096 | 2021 | |
| 8. | Bangladesh | 17,152,912 | 2021 | |
| 9. | Brazil | 17,060,338 | 2021 | |
| 10. | Philippines | 12,982,141 | 2021 | |
| 11. | Democratic Republic of the Congo | 12,840,374 | 2021 | |
| 12. | Mexico | 10,383,654 | 2021 | |
| 13. | Egypt | 9,840,040 | 2021 | |
| 14. | Uganda | 9,713,373 | 2021 | |
| 15. | Sudan | 8,259,286 | 2021 | |
| 16. | Vietnam | 7,152,605 | 2021 | |
| 17. | Iran | 6,853,948 | 2021 | |
| 18. | Turkey | 6,509,179 | 2021 | |
| 19. | Russia | 6,361,393 | 2021 | |
| 20. | Tanzania | 6,051,257 | 2021 | |
| 21. | Afghanistan | 5,766,850 | 2021 | |
| 22. | Kenya | 5,210,233 | 2021 | |
| 23. | Myanmar | 4,917,998 | 2021 | |
| 24. | Mozambique | 4,819,457 | 2021 | |
| 25. | Japan | 4,706,576 | 2021 | |
| 26. | Niger | 4,512,240 | 2021 | |
| 27. | Madagascar | 4,464,119 | 2021 | |
| 28. | South Africa | 4,241,018 | 2021 | |
| 29. | Iraq | 4,188,582 | 2021 | |
| 30. | Thailand | 4,084,857 | 2021 | |
| 31. | United Kingdom | 3,897,909 | 2021 | |
| 32. | Burkina Faso | 3,855,720 | 2021 | |
| 33. | France | 3,849,320 | 2021 | |
| 34. | Angola | 3,745,130 | 2021 | |
| 35. | Colombia | 3,745,035 | 2021 | |
| 36. | Yemen | 3,684,258 | 2021 | |
| 37. | Argentina | 3,523,765 | 2021 | |
| 38. | Germany | 3,464,699 | 2021 | |
| 39. | Malawi | 3,322,298 | 2021 | |
| 40. | Nepal | 3,223,243 | 2021 | |
| 41. | Zambia | 3,218,077 | 2021 | |
| 42. | Mali | 3,163,838 | 2021 | |
| 43. | Cote d'Ivoire | 3,135,321 | 2021 | |
| 44. | Ghana | 3,133,588 | 2021 | |
| 45. | Cameroon | 3,099,233 | 2021 | |
| 46. | Malaysia | 2,936,419 | 2021 | |
| 47. | Morocco | 2,899,133 | 2021 | |
| 48. | Algeria | 2,841,161 | 2021 | |
| 49. | Venezuela | 2,774,634 | 2021 | |
| 50. | Peru | 2,680,161 | 2021 | |
| 51. | Italy | 2,645,783 | 2021 | |
| 52. | Saudi Arabia | 2,627,309 | 2021 | |
| 53. | Syria | 2,430,330 | 2021 | |
| 54. | Uzbekistan | 2,422,225 | 2021 | |
| 55. | Senegal | 2,326,002 | 2021 | |
| 56. | Zimbabwe | 2,278,138 | 2021 | |
| 57. | Burundi | 2,270,140 | 2021 | |
| 58. | Spain | 2,256,434 | 2021 | |
| 59. | Guinea | 2,113,162 | 2021 | |
| 60. | Rwanda | 2,067,148 | 2021 | |
| 61. | South Korea | 2,002,161 | 2021 | |
| 62. | Somalia | 1,949,746 | 2021 | |
| 63. | Chad | 1,922,590 | 2021 | |
| 64. | Ukraine | 1,860,650 | 2021 | |
| 65. | Canada | 1,857,630 | 2021 | |
| 66. | Benin | 1,851,053 | 2021 | |
| 67. | Guatemala | 1,811,601 | 2021 | |
| 68. | North Korea | 1,806,942 | 2021 | |
| 69. | Cambodia | 1,736,540 | 2021 | |
| 70. | Poland | 1,718,177 | 2021 | |
| 71. | Sri Lanka | 1,644,516 | 2021 | |
| 72. | Kazakhstan | 1,591,287 | 2021 | |
| 73. | Ecuador | 1,426,482 | 2021 | |
| 74. | Australia | 1,425,877 | 2021 | |
| 75. | Togo | 1,284,561 | 2021 | |
| 76. | Chile | 1,188,562 | 2021 | |
| 77. | Bolivia | 1,172,393 | 2021 | |
| 78. | Haiti | 1,060,760 | 2021 | |
| 79. | Sierra Leone | 1,052,682 | 2021 | |
| 80. | Honduras | 986,945 | 2021 | |
| 81. | Dominican Republic | 965,338 | 2021 | |
| 82. | Taiwan | 964,233 | 2021 | |
| 83. | Eritrea | 940,884 | 2021 | |
| 84. | Tajikistan | 939,905 | 2021 | |
| 85. | Netherlands | 938,270 | 2021 | |
| 86. | Romania | 919,389 | 2021 | |
| 87. | Republic of Congo | 888,532 | 2021 | |
| 88. | Central African Republic | 886,358 | 2021 | |
| 89. | Tunisia | 863,636 | 2021 | |
| 90. | Jordan | 852,276 | 2021 | |
| 91. | Laos | 791,379 | 2021 | |
| 92. | Papua New Guinea | 785,453 | 2021 | |
| 93. | Azerbaijan | 744,141 | 2021 | |
| 94. | Libya | 737,818 | 2021 | |
| 95. | Israel | 722,639 | 2021 | |
| 96. | Liberia | 689,377 | 2021 | |
| 97. | Kyrgyzstan | 649,426 | 2021 | |
| 98. | Paraguay | 574,553 | 2021 | |
| 99. | Mauritania | 542,636 | 2021 | |
| 100. | Cuba | 535,430 | 2021 |
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