The World: Population - Age 0-4 (2026) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 214. | British Virgin Islands | 2,379 | 2026 (Est.) | |
| 9. | Brazil | 16,752,931 | 2026 (Est.) | |
| 136. | Botswana | 229,285 | 2026 (Est.) | |
| 144. | Bosnia and Herzegovina | 180,238 | 2026 (Est.) | |
| 76. | Bolivia | 1,164,793 | 2026 (Est.) | |
| 164. | Bhutan | 60,423 | 2026 (Est.) | |
| 204. | Bermuda | 4,001 | 2026 (Est.) | |
| 63. | Benin | 1,973,415 | 2026 (Est.) | |
| 170. | Belize | 42,517 | 2026 (Est.) | |
| 103. | Belgium | 509,550 | 2026 (Est.) | |
| 112. | Belarus | 365,923 | 2026 (Est.) | |
| 186. | Barbados | 15,993 | 2026 (Est.) | |
| 8. | Bangladesh | 17,363,172 | 2026 (Est.) | |
| 155. | Bahrain | 96,695 | 2026 (Est.) | |
| 96. | Azerbaijan | 667,645 | 2026 (Est.) | |
| 115. | Austria | 359,545 | 2026 (Est.) | |
| 72. | Australia | 1,454,923 | 2026 (Est.) | |
| 196. | Aruba | 7,206 | 2026 (Est.) | |
| 147. | Armenia | 150,635 | 2026 (Est.) | |
| 39. | Argentina | 3,444,929 | 2026 (Est.) | |
| 193. | Antigua and Barbuda | 7,698 | 2026 (Est.) | |
| 218. | Anguilla | 1,381 | 2026 (Est.) | |
| 30. | Angola | 4,133,322 | 2026 (Est.) | |
| 211. | Andorra | 2,927 | 2026 (Est.) | |
| 194. | American Samoa | 7,684 | 2026 (Est.) | |
| 50. | Algeria | 2,671,385 | 2026 (Est.) | |
| 143. | Albania | 188,582 | 2026 (Est.) | |
| 19. | Afghanistan | 6,101,863 | 2026 (Est.) |
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