| # | Flag | Country | Population ages 0-4, male (% of male population)Population ages 0-4, male (% of male population) | Year |
|---|---|---|---|---|
| 1 | Niger | 20.6% | 2018 | |
| 2 | Uganda | 18.46% | 2018 | |
| 3 | Mali | 18.42% | 2018 | |
| 4 | Somalia | 18.4% | 2018 | |
| 5 | Angola | 18.39% | 2018 | |
| 6 | Democratic Republic Of Congo | 18.27% | 2018 | |
| 7 | Burundi | 18.27% | 2018 | |
| 8 | Chad | 18.26% | 2018 | |
| 9 | Gambia | 17.66% | 2018 | |
| 10 | Mozambique | 17.36% | 2018 | |
| 11 | Tanzania | 17.34% | 2018 | |
| 12 | Burkina Faso | 17.27% | 2018 | |
| 13 | Zambia | 17.08% | 2018 | |
| 14 | Nigeria | 16.98% | 2018 | |
| 15 | Senegal | 16.56% | 2018 | |
| 16 | Eritrea | 16.55% | 2011 | |
| 17 | Benin | 16.31% | 2018 | |
| 18 | Malawi | 16.24% | 2018 | |
| 19 | Ivory Coast | 16.1% | 2018 | |
| 20 | Cameroon | 16% | 2018 | |
| 21 | East Timor | 15.97% | 2018 | |
| 22 | Guinea-Bissau | 15.96% | 2018 | |
| 23 | Guinea | 15.78% | 2018 | |
| 24 | South Sudan | 15.71% | 2018 | |
| 25 | Republic of the Congo | 15.7% | 2018 | |
| 26 | Central African Republic | 15.66% | 2018 | |
| 27 | Zimbabwe | 15.49% | 2018 | |
| 28 | Liberia | 15.43% | 2018 | |
| 29 | São Tomé and Príncipe | 15.42% | 2018 | |
| 30 | Iraq | 15.34% | 2018 | |
| 31 | Sierra Leone | 15.24% | 2018 | |
| 32 | Madagascar | 15.2% | 2018 | |
| 33 | Togo | 15.16% | 2018 | |
| 34 | Mauritania | 15.07% | 2018 | |
| 35 | Sudan | 14.96% | 2018 | |
| 36 | Comoros | 14.75% | 2018 | |
| 37 | Ethiopia | 14.64% | 2018 | |
| 38 | Afghanistan | 14.63% | 2018 | |
| 39 | Yemen | 14.48% | 2018 | |
| 40 | Rwanda | 14.43% | 2018 | |
| 41 | Ghana | 14.41% | 2018 | |
| 42 | Kenya | 14.38% | 2018 | |
| 43 | Namibia | 13.98% | 2018 | |
| 44 | Swaziland | 13.66% | 2018 | |
| 45 | Solomon Islands | 13.51% | 2018 | |
| 46 | Tajikistan | 13.48% | 2018 | |
| 47 | Equatorial Guinea | 13.31% | 2018 | |
| 48 | Gabon | 13.27% | 2018 | |
| 49 | Lesotho | 13.25% | 2018 | |
| 50 | Kiribati | 12.98% | 2018 | |
| 51 | Egypt | 12.96% | 2018 | |
| 52 | Vanuatu | 12.78% | 2018 | |
| 53 | Papua New Guinea | 12.72% | 2018 | |
| 54 | Pakistan | 12.69% | 2018 | |
| 55 | Jordan | 12.64% | 2018 | |
| 56 | Kyrgyzstan | 12.54% | 2018 | |
| 57 | Guatemala | 12.33% | 2018 | |
| 58 | Turkmenistan | 12.27% | 2018 | |
| 59 | Mongolia | 11.72% | 2018 | |
| 60 | Tonga | 11.65% | 2018 | |
| 61 | Samoa | 11.62% | 2018 | |
| 62 | Haiti | 11.44% | 2018 | |
| 63 | Cambodia | 11.4% | 2018 | |
| 64 | Botswana | 11.35% | 2018 | |
| 65 | Laos | 11.23% | 2018 | |
| 66 | Philippines | 11.21% | 2018 | |
| 67 | Federated States of Micronesia | 11.19% | 2018 | |
| 68 | Kazakhstan | 11.07% | 2018 | |
| 69 | Algeria | 11.02% | 2018 | |
| 70 | Belize | 10.96% | 2018 | |
| 71 | Bolivia | 10.92% | 2018 | |
| 72 | Djibouti | 10.65% | 2018 | |
| 73 | Syria | 10.48% | 2018 | |
| 74 | Honduras | 10.41% | 2018 | |
| 75 | South Africa | 10.22% | 2018 | |
| 76 | Uzbekistan | 10.21% | 2018 | |
| 77 | Israel | 10.2% | 2018 | |
| 78 | Cape Verde | 10.08% | 2018 | |
| 79 | Paraguay | 9.9% | 2018 | |
| 80 | Dominican Republic | 9.89% | 2018 | |
| 81 | Morocco | 9.89% | 2018 | |
| 82 | Nepal | 9.88% | 2018 | |
| 83 | Guyana | 9.86% | 2018 | |
| 84 | Ecuador | 9.8% | 2018 | |
| 85 | El Salvador | 9.78% | 2018 | |
| 86 | Nicaragua | 9.7% | 2018 | |
| 87 | Libya | 9.59% | 2018 | |
| 88 | Panama | 9.52% | 2018 | |
| 89 | Peru | 9.45% | 2018 | |
| 90 | Fiji | 9.45% | 2018 | |
| 91 | Venezuela | 9.42% | 2018 | |
| 92 | Indonesia | 9.3% | 2018 | |
| 93 | Azerbaijan | 9.23% | 2018 | |
| 94 | Tunisia | 9.2% | 2018 | |
| 95 | Grenada | 9.19% | 2018 | |
| 96 | Bangladesh | 9.17% | 2018 | |
| 97 | Suriname | 9.05% | 2018 | |
| 98 | India | 9.02% | 2018 | |
| 99 | Mexico | 9% | 2018 | |
| 100 | Argentina | 8.67% | 2018 | |
| 101 | Myanmar | 8.63% | 2018 | |
| 102 | Vietnam | 8.47% | 2018 | |
| 103 | Turkey | 8.39% | 2018 | |
| 104 | Malaysia | 8.32% | 2018 | |
| 105 | Guam | 8.28% | 2018 | |
| 106 | Seychelles | 8.27% | 2018 | |
| 107 | Antigua and Barbuda | 8.22% | 2018 | |
| 108 | Bhutan | 8.22% | 2018 | |
| 109 | Iran | 8.17% | 2018 | |
| 110 | Saudi Arabia | 7.99% | 2018 | |
| 111 | Lebanon | 7.99% | 2018 | |
| 112 | Maldives | 7.96% | 2018 | |
| 113 | Sri Lanka | 7.89% | 2018 | |
| 114 | New Caledonia | 7.86% | 2018 | |
| 115 | Brunei | 7.79% | 2018 | |
| 116 | Jamaica | 7.74% | 2018 | |
| 117 | French Polynesia | 7.69% | 2018 | |
| 118 | Colombia | 7.66% | 2018 | |
| 119 | Armenia | 7.47% | 2018 | |
| 120 | Saint Vincent and the Grenadines | 7.4% | 2018 | |
| 121 | The Bahamas | 7.28% | 2018 | |
| 122 | Uruguay | 7.25% | 2018 | |
| 123 | Georgia | 7.24% | 2018 | |
| 124 | Brazil | 7.23% | 2018 | |
| 125 | Republic of Ireland | 7.18% | 2018 | |
| 126 | Russia | 7.15% | 2018 | |
| 127 | Curacao | 7.14% | 2018 | |
| 128 | Costa Rica | 7.08% | 2018 | |
| 129 | North Korea | 7.08% | 2018 | |
| 130 | Virgin Islands (US) | 6.91% | 2018 | |
| 131 | Kuwait | 6.87% | 2018 | |
| 132 | Trinidad and Tobago | 6.83% | 2018 | |
| 133 | New Zealand | 6.74% | 2018 | |
| 134 | Australia | 6.69% | 2018 | |
| 135 | Belarus | 6.67% | 2018 | |
| 136 | Chile | 6.66% | 2018 | |
| 137 | Iceland | 6.58% | 2018 | |
| 138 | Oman | 6.57% | 2018 | |
| 139 | United States | 6.35% | 2018 | |
| 140 | Barbados | 6.33% | 2018 | |
| 141 | Macao | 6.32% | 2018 | |
| 142 | United Kingdom | 6.28% | 2018 | |
| 143 | Saint Lucia | 6.2% | 2018 | |
| 144 | Sweden | 6.18% | 2018 | |
| 145 | China | 6.15% | 2018 | |
| 146 | France | 6.1% | 2018 | |
| 147 | Albania | 6.07% | 2018 | |
| 148 | Norway | 6% | 2018 | |
| 149 | Belgium | 5.92% | 2018 | |
| 150 | Montenegro | 5.88% | 2018 | |
| 151 | Luxembourg | 5.86% | 2018 | |
| 152 | Lithuania | 5.86% | 2018 | |
| 153 | Ukraine | 5.83% | 2018 | |
| 154 | Republic of Macedonia | 5.78% | 2018 | |
| 155 | Estonia | 5.68% | 2018 | |
| 156 | Cyprus | 5.66% | 2018 | |
| 157 | Puerto Rico | 5.65% | 2018 | |
| 158 | Finland | 5.64% | 2018 | |
| 159 | Aruba | 5.61% | 2018 | |
| 160 | Bahrain | 5.57% | 2018 | |
| 161 | Cuba | 5.56% | 2018 | |
| 162 | Serbia | 5.54% | 2018 | |
| 163 | Moldova | 5.54% | 2018 | |
| 164 | Latvia | 5.49% | 2018 | |
| 165 | Canada | 5.48% | 2018 | |
| 166 | Thailand | 5.46% | 2018 | |
| 167 | Mauritius | 5.44% | 2018 | |
| 168 | Netherlands | 5.42% | 2018 | |
| 169 | Slovakia | 5.42% | 2018 | |
| 170 | Switzerland | 5.41% | 2018 | |
| 171 | Denmark | 5.25% | 2018 | |
| 172 | Slovenia | 5.25% | 2018 | |
| 173 | Czech Republic | 5.24% | 2018 | |
| 174 | Malta | 5.12% | 2018 | |
| 175 | Austria | 5.04% | 2018 | |
| 176 | Romania | 5.03% | 2018 | |
| 177 | Poland | 4.9% | 2018 | |
| 178 | Hong Kong | 4.89% | 2018 | |
| 179 | Croatia | 4.86% | 2018 | |
| 180 | Hungary | 4.85% | 2018 | |
| 181 | Bulgaria | 4.83% | 2018 | |
| 182 | Singapore | 4.82% | 2018 | |
| 183 | Bosnia and Herzegovina | 4.7% | 2018 | |
| 184 | Germany | 4.6% | 2018 | |
| 185 | Spain | 4.54% | 2018 | |
| 186 | South Korea | 4.54% | 2018 | |
| 187 | Italy | 4.35% | 2018 | |
| 188 | Japan | 4.34% | 2018 | |
| 189 | Portugal | 4.32% | 2018 | |
| 190 | Greece | 4.25% | 2018 | |
| 191 | Qatar | 3.39% | 2018 | |
| 192 | United Arab Emirates | 3.35% | 2018 |