| # | Flag | Country | Population ages 15-64, totalPopulation ages 15-64, total | Year |
|---|---|---|---|---|
| 1 | China | 991,444,061 | 2018 | |
| 2 | India | 898,526,060 | 2018 | |
| 3 | United States | 213,870,421 | 2018 | |
| 4 | Indonesia | 180,773,237 | 2018 | |
| 5 | Brazil | 146,134,856 | 2018 | |
| 6 | Pakistan | 129,100,614 | 2018 | |
| 7 | Bangladesh | 108,176,093 | 2018 | |
| 8 | Nigeria | 104,612,704 | 2018 | |
| 9 | Russia | 97,617,861 | 2018 | |
| 10 | Mexico | 84,131,637 | 2018 | |
| 11 | Japan | 75,517,984 | 2018 | |
| 12 | Philippines | 67,835,490 | 2018 | |
| 13 | Vietnam | 66,446,920 | 2018 | |
| 14 | Ethiopia | 61,664,133 | 2018 | |
| 15 | Egypt | 60,493,639 | 2018 | |
| 16 | Iran | 57,790,313 | 2018 | |
| 17 | Turkey | 55,208,366 | 2018 | |
| 18 | Germany | 54,117,035 | 2018 | |
| 19 | Thailand | 49,417,568 | 2018 | |
| 20 | Democratic Republic Of Congo | 42,722,470 | 2018 | |
| 21 | United Kingdom | 42,235,882 | 2018 | |
| 22 | France | 41,500,627 | 2018 | |
| 23 | Italy | 38,223,037 | 2018 | |
| 24 | South Africa | 37,985,247 | 2018 | |
| 25 | South Korea | 37,288,885 | 2018 | |
| 26 | Myanmar | 36,392,541 | 2018 | |
| 27 | Colombia | 34,236,260 | 2018 | |
| 28 | Spain | 30,693,768 | 2018 | |
| 29 | Ukraine | 30,095,262 | 2018 | |
| 30 | Tanzania | 29,400,027 | 2018 | |
| 31 | Kenya | 29,395,611 | 2018 | |
| 32 | Argentina | 28,464,684 | 2018 | |
| 33 | Algeria | 27,060,844 | 2018 | |
| 34 | Poland | 25,745,274 | 2018 | |
| 35 | Canada | 24,644,683 | 2018 | |
| 36 | Saudi Arabia | 24,161,033 | 2018 | |
| 37 | Morocco | 23,712,222 | 2018 | |
| 38 | Sudan | 23,382,140 | 2018 | |
| 39 | Uzbekistan | 22,192,371 | 2018 | |
| 40 | Malaysia | 21,895,260 | 2018 | |
| 41 | Iraq | 21,710,689 | 2018 | |
| 42 | Uganda | 21,543,824 | 2018 | |
| 43 | Peru | 20,975,187 | 2018 | |
| 44 | Afghanistan | 20,349,018 | 2018 | |
| 45 | Venezuela | 19,026,547 | 2018 | |
| 46 | North Korea | 17,966,242 | 2018 | |
| 47 | Nepal | 17,935,204 | 2018 | |
| 48 | Ghana | 17,348,730 | 2018 | |
| 49 | Yemen | 16,384,545 | 2018 | |
| 50 | Australia | 16,273,807 | 2018 | |
| 51 | Angola | 15,687,597 | 2018 | |
| 52 | Mozambique | 15,427,738 | 2018 | |
| 53 | Madagascar | 14,799,024 | 2018 | |
| 54 | Sri Lanka | 14,267,519 | 2018 | |
| 55 | Ivory Coast | 13,730,129 | 2018 | |
| 56 | Cameroon | 13,700,713 | 2018 | |
| 57 | Romania | 12,944,385 | 2018 | |
| 58 | Chile | 12,819,312 | 2018 | |
| 59 | Kazakhstan | 11,784,122 | 2018 | |
| 60 | Netherlands | 11,131,287 | 2018 | |
| 61 | Ecuador | 11,018,040 | 2018 | |
| 62 | Niger | 10,621,110 | 2018 | |
| 63 | Guatemala | 10,479,280 | 2018 | |
| 64 | Cambodia | 10,435,168 | 2018 | |
| 65 | Burkina Faso | 10,398,219 | 2018 | |
| 66 | Syria | 10,097,520 | 2018 | |
| 67 | Malawi | 9,671,950 | 2018 | |
| 68 | Mali | 9,531,476 | 2018 | |
| 69 | Zambia | 9,209,402 | 2018 | |
| 70 | Senegal | 8,601,672 | 2018 | |
| 71 | United Arab Emirates | 8,177,029 | 2018 | |
| 72 | Zimbabwe | 8,114,147 | 2018 | |
| 73 | Chad | 7,837,244 | 2018 | |
| 74 | Tunisia | 7,828,333 | 2018 | |
| 75 | Cuba | 7,811,578 | 2018 | |
| 76 | Somalia | 7,642,657 | 2018 | |
| 77 | Belgium | 7,317,434 | 2018 | |
| 78 | Rwanda | 7,030,297 | 2018 | |
| 79 | Bolivia | 7,027,817 | 2018 | |
| 80 | Azerbaijan | 7,005,679 | 2018 | |
| 81 | Greece | 7,005,042 | 2018 | |
| 82 | Haiti | 6,949,882 | 2018 | |
| 83 | Czech Republic | 6,905,693 | 2018 | |
| 84 | Guinea | 6,801,651 | 2018 | |
| 85 | Dominican Republic | 6,789,146 | 2018 | |
| 86 | Portugal | 6,653,467 | 2018 | |
| 87 | Hungary | 6,500,787 | 2018 | |
| 88 | Belarus | 6,445,907 | 2018 | |
| 89 | Sweden | 6,339,212 | 2018 | |
| 90 | Benin | 6,236,228 | 2018 | |
| 91 | Honduras | 6,154,549 | 2018 | |
| 92 | Jordan | 6,070,359 | 2018 | |
| 93 | South Sudan | 6,050,831 | 2018 | |
| 94 | Austria | 5,884,838 | 2018 | |
| 95 | Burundi | 5,845,637 | 2018 | |
| 96 | Switzerland | 5,658,742 | 2018 | |
| 97 | Tajikistan | 5,559,504 | 2018 | |
| 98 | Israel | 5,351,621 | 2018 | |
| 99 | Hong Kong | 5,307,574 | 2018 | |
| 100 | Papua New Guinea | 5,207,428 | 2018 | |
| 101 | Lebanon | 4,705,848 | 2018 | |
| 102 | Serbia | 4,592,469 | 2018 | |
| 103 | Bulgaria | 4,533,213 | 2018 | |
| 104 | Libya | 4,517,713 | 2018 | |
| 105 | Laos | 4,474,329 | 2018 | |
| 106 | Paraguay | 4,472,569 | 2018 | |
| 107 | Togo | 4,405,623 | 2018 | |
| 108 | Sierra Leone | 4,262,119 | 2018 | |
| 109 | Nicaragua | 4,250,231 | 2018 | |
| 110 | El Salvador | 4,140,541 | 2018 | |
| 111 | Singapore | 4,041,681 | 2018 | |
| 112 | Kyrgyzstan | 3,993,906 | 2018 | |
| 113 | Turkmenistan | 3,788,401 | 2018 | |
| 114 | Slovakia | 3,754,568 | 2018 | |
| 115 | Denmark | 3,693,618 | 2018 | |
| 116 | Oman | 3,670,706 | 2018 | |
| 117 | Norway | 3,466,050 | 2018 | |
| 118 | Costa Rica | 3,442,038 | 2018 | |
| 119 | Finland | 3,416,656 | 2018 | |
| 120 | New Zealand | 3,156,495 | 2018 | |
| 121 | Kuwait | 3,154,853 | 2018 | |
| 122 | Republic of Ireland | 3,115,763 | 2018 | |
| 123 | Republic of the Congo | 2,856,285 | 2018 | |
| 124 | Panama | 2,704,739 | 2018 | |
| 125 | Liberia | 2,671,366 | 2018 | |
| 126 | Croatia | 2,663,348 | 2018 | |
| 127 | Moldova | 2,579,573 | 2018 | |
| 128 | Mauritania | 2,515,050 | 2018 | |
| 129 | Central African Republic | 2,497,247 | 2018 | |
| 130 | Georgia | 2,446,466 | 2018 | |
| 131 | Qatar | 2,355,166 | 2018 | |
| 132 | Bosnia and Herzegovina | 2,287,979 | 2018 | |
| 133 | Uruguay | 2,219,169 | 2018 | |
| 134 | Puerto Rico | 2,137,289 | 2018 | |
| 135 | Mongolia | 2,090,547 | 2018 | |
| 136 | Armenia | 2,021,673 | 2018 | |
| 137 | Albania | 1,986,338 | 2018 | |
| 138 | Jamaica | 1,980,675 | 2018 | |
| 139 | Lithuania | 1,836,623 | 2018 | |
| 140 | Eritrea | 1,754,510 | 2011 | |
| 141 | Namibia | 1,467,334 | 2018 | |
| 142 | Botswana | 1,459,887 | 2018 | |
| 143 | Republic of Macedonia | 1,452,620 | 2018 | |
| 144 | Slovenia | 1,348,712 | 2018 | |
| 145 | Lesotho | 1,269,530 | 2018 | |
| 146 | Gabon | 1,264,827 | 2018 | |
| 147 | Latvia | 1,241,504 | 2018 | |
| 148 | Bahrain | 1,230,416 | 2018 | |
| 149 | Gambia | 1,198,638 | 2018 | |
| 150 | Guinea-Bissau | 1,041,997 | 2018 | |
| 151 | Trinidad and Tobago | 960,757 | 2018 | |
| 152 | Mauritius | 894,328 | 2018 | |
| 153 | Estonia | 841,353 | 2018 | |
| 154 | Cyprus | 826,566 | 2018 | |
| 155 | Equatorial Guinea | 787,257 | 2018 | |
| 156 | Swaziland | 679,661 | 2018 | |
| 157 | East Timor | 670,595 | 2018 | |
| 158 | Djibouti | 624,682 | 2018 | |
| 159 | Fiji | 576,435 | 2018 | |
| 160 | Bhutan | 519,006 | 2018 | |
| 161 | Guyana | 513,822 | 2018 | |
| 162 | Macao | 478,525 | 2018 | |
| 163 | Comoros | 478,193 | 2018 | |
| 164 | Luxembourg | 419,627 | 2018 | |
| 165 | Montenegro | 415,425 | 2018 | |
| 166 | Suriname | 384,488 | 2018 | |
| 167 | Solomon Islands | 378,621 | 2018 | |
| 168 | Maldives | 373,778 | 2018 | |
| 169 | Cape Verde | 357,207 | 2018 | |
| 170 | Malta | 317,546 | 2018 | |
| 171 | Brunei | 310,857 | 2018 | |
| 172 | The Bahamas | 270,532 | 2018 | |
| 173 | Belize | 249,752 | 2018 | |
| 174 | Iceland | 230,408 | 2018 | |
| 175 | New Caledonia | 192,009 | 2018 | |
| 176 | French Polynesia | 191,581 | 2018 | |
| 177 | Barbados | 188,302 | 2018 | |
| 178 | Vanuatu | 174,752 | 2018 | |
| 179 | Saint Lucia | 130,279 | 2018 | |
| 180 | São Tomé and Príncipe | 115,456 | 2018 | |
| 181 | Samoa | 113,533 | 2018 | |
| 182 | Guam | 108,976 | 2018 | |
| 183 | Curacao | 103,342 | 2018 | |
| 184 | Saint Vincent and the Grenadines | 75,519 | 2018 | |
| 185 | Grenada | 73,845 | 2018 | |
| 186 | Aruba | 72,781 | 2018 | |
| 187 | Kiribati | 70,316 | 2018 | |
| 188 | Federated States of Micronesia | 70,072 | 2018 | |
| 189 | Antigua and Barbuda | 66,664 | 2018 | |
| 190 | Seychelles | 66,513 | 2018 | |
| 191 | Virgin Islands (US) | 65,071 | 2018 | |
| 192 | Tonga | 60,715 | 2018 |