The World: Population - Age 0-4 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 177. | Mayotte | 26,265 | 2018 | |
| 158. | Mauritius | 87,812 | 2018 | |
| 100. | Mauritania | 529,904 | 2018 | |
| 192. | Marshall Islands | 8,747 | 2018 | |
| 181. | Malta | 20,991 | 2018 | |
| 45. | Mali | 3,012,614 | 2018 | |
| 174. | Maldives | 30,318 | 2018 | |
| 46. | Malaysia | 2,946,428 | 2018 | |
| 40. | Malawi | 3,161,448 | 2018 | |
| 27. | Madagascar | 4,229,418 | 2018 | |
| 151. | Macedonia | 119,426 | 2018 | |
| 176. | Macau | 26,774 | 2018 | |
| 173. | Luxembourg | 32,114 | 2018 | |
| 148. | Lithuania | 160,429 | 2018 | |
| 216. | Liechtenstein | 1,986 | 2018 | |
| 94. | Libya | 755,746 | 2018 | |
| 96. | Liberia | 669,116 | 2018 | |
| 138. | Lesotho | 218,211 | 2018 | |
| 122. | Lebanon | 292,907 | 2018 | |
| 155. | Latvia | 100,555 | 2018 | |
| 91. | Laos | 789,747 | 2018 | |
| 97. | Kyrgyzstan | 656,398 | 2018 | |
| 131. | Kuwait | 269,511 | 2018 | |
| 149. | Kosovo | 152,432 | 2018 | |
| 188. | Kiribati | 10,760 | 2018 | |
| 21. | Kenya | 5,732,632 | 2018 | |
| 72. | Kazakhstan | 1,684,124 | 2018 | |
| 90. | Jordan | 837,769 | 2018 | |
| 23. | Japan | 4,973,882 | 2018 | |
| 132. | Jamaica | 262,279 | 2018 | |
| 51. | Italy | 2,699,918 | 2018 | |
| 95. | Israel | 721,267 | 2018 | |
| 202. | Isle of Man | 4,869 | 2018 | |
| 116. | Ireland | 361,582 | 2018 | |
| 28. | Iraq | 4,197,568 | 2018 | |
| 17. | Iran | 7,007,580 | 2018 | |
| 6. | Indonesia | 20,870,818 | 2018 | |
| 1. | India | 116,683,184 | 2018 | |
| 182. | Iceland | 20,771 | 2018 | |
| 109. | Hungary | 451,878 | 2018 | |
| 126. | Hong Kong | 279,670 | 2018 | |
| 80. | Honduras | 990,673 | 2018 | |
| 78. | Haiti | 1,067,780 | 2018 | |
| 167. | Guyana | 55,890 | 2018 | |
| 134. | Guinea-Bissau | 258,238 | 2018 | |
| 62. | Guinea | 1,990,505 | 2018 | |
| 211. | Guernsey | 3,202 | 2018 | |
| 67. | Guatemala | 1,814,296 | 2018 | |
| 186. | Guam | 16,205 | 2018 | |
| 193. | Grenada | 8,700 | 2018 | |
| 203. | Greenland | 4,075 | 2018 | |
| 108. | Greece | 462,020 | 2018 | |
| 214. | Gibraltar | 2,042 | 2018 | |
| 39. | Ghana | 3,163,689 | 2018 | |
| 38. | Germany | 3,441,093 | 2018 | |
| 137. | Georgia | 231,262 | 2018 | |
| 125. | Gaza Strip | 283,851 | 2018 | |
| 127. | Gabon | 279,265 | 2018 | |
| 180. | French Polynesia | 21,227 | 2018 | |
| 31. | France | 3,906,215 | 2018 | |
| 129. | Finland | 272,182 | 2018 | |
| 159. | Fiji | 84,753 | 2018 | |
| 191. | Federated States of Micronesia | 9,988 | 2018 | |
| 209. | Faroe Islands | 3,483 | 2018 | |
| 7. | Ethiopia | 19,951,936 | 2018 | |
| 166. | Estonia | 62,317 | 2018 | |
| 85. | Eritrea | 935,194 | 2018 | |
| 152. | Equatorial Guinea | 114,244 | 2018 | |
| 104. | El Salvador | 489,903 | 2018 | |
| 13. | Egypt | 9,879,704 | 2018 | |
| 73. | Ecuador | 1,441,541 | 2018 | |
| 150. | East Timor | 149,087 | 2018 | |
| 83. | Dominican Republic | 961,153 | 2018 | |
| 201. | Dominica | 5,507 | 2018 | |
| 156. | Djibouti | 94,376 | 2018 | |
| 123. | Denmark | 291,795 | 2018 | |
| 11. | Democratic Republic of the Congo | 12,660,993 | 2018 | |
| 111. | Czech Republic | 419,975 | 2018 | |
| 164. | Cyprus | 68,101 | 2018 | |
| 99. | Cuba | 541,552 | 2018 | |
| 141. | Croatia | 209,512 | 2018 | |
| 42. | Cote d'Ivoire | 3,119,270 | 2018 | |
| 113. | Costa Rica | 379,937 | 2018 | |
| 224. | Cook Islands | 604 | 2018 | |
| 154. | Comoros | 100,594 | 2018 | |
| 33. | Colombia | 3,781,952 | 2018 | |
| 2. | China | 80,221,664 | 2018 | |
| 76. | Chile | 1,196,439 | 2018 | |
| 200. | Channel Islands | 5,888 | 2018 | |
| 63. | Chad | 1,891,514 | 2018 | |
| 88. | Central African Republic | 852,789 | 2018 | |
| 207. | Cayman Islands | 3,670 | 2018 | |
| 168. | Cape Verde | 53,836 | 2018 | |
| 65. | Canada | 1,831,455 | 2018 | |
| 43. | Cameroon | 3,068,436 | 2018 | |
| 70. | Cambodia | 1,762,250 | 2018 | |
| 58. | Burundi | 2,139,107 | 2018 | |
| 35. | Burkina Faso | 3,605,839 | 2018 | |
| 124. | Bulgaria | 288,682 | 2018 | |
| 171. | Brunei | 36,531 | 2018 |
