| # | Flag | Country | Secondary education, pupilsSecondary education, pupils | Year |
|---|---|---|---|---|
| 1 | India | 132,161,360 | 2016 | |
| 2 | China | 83,407,928 | 2017 | |
| 3 | United States | 24,707,908 | 2016 | |
| 4 | Indonesia | 24,318,262 | 2017 | |
| 5 | Brazil | 23,538,072 | 2016 | |
| 6 | Bangladesh | 15,314,757 | 2017 | |
| 7 | Mexico | 14,034,552 | 2017 | |
| 8 | Pakistan | 12,529,168 | 2017 | |
| 9 | Turkey | 11,019,149 | 2016 | |
| 10 | Nigeria | 10,314,796 | 2016 | |
| 11 | Russia | 9,566,901 | 2016 | |
| 12 | Egypt | 8,938,257 | 2017 | |
| 13 | United Kingdom | 7,642,062 | 2016 | |
| 14 | Philippines | 7,397,290 | 2016 | |
| 15 | Japan | 7,157,298 | 2016 | |
| 16 | Germany | 7,073,164 | 2016 | |
| 17 | Vietnam | 6,818,774 | 1998 | |
| 18 | Thailand | 6,335,213 | 2017 | |
| 19 | France | 6,016,608 | 2016 | |
| 20 | Iran | 5,684,238 | 2017 | |
| 21 | South Africa | 5,164,481 | 2016 | |
| 22 | Ethiopia | 5,028,678 | 2015 | |
| 23 | Colombia | 4,784,846 | 2017 | |
| 24 | Democratic Republic Of Congo | 4,618,895 | 2015 | |
| 25 | Italy | 4,589,550 | 2016 | |
| 26 | Argentina | 4,583,002 | 2016 | |
| 27 | Algeria | 4,572,513 | 2011 | |
| 28 | Myanmar | 3,970,705 | 2017 | |
| 29 | Uzbekistan | 3,892,888 | 2017 | |
| 30 | Saudi Arabia | 3,419,441 | 2014 | |
| 31 | Nepal | 3,336,650 | 2017 | |
| 32 | Spain | 3,329,389 | 2016 | |
| 33 | South Korea | 3,231,795 | 2016 | |
| 34 | Kenya | 3,204,379 | 2009 | |
| 35 | Afghanistan | 2,907,800 | 2017 | |
| 36 | Morocco | 2,847,122 | 2017 | |
| 37 | Peru | 2,779,973 | 2018 | |
| 38 | Malaysia | 2,744,639 | 2017 | |
| 39 | Ghana | 2,677,145 | 2018 | |
| 40 | Australia | 2,650,486 | 2017 | |
| 41 | Sri Lanka | 2,648,660 | 2017 | |
| 42 | Canada | 2,640,933 | 2016 | |
| 43 | Poland | 2,462,928 | 2016 | |
| 44 | Venezuela | 2,391,174 | 2017 | |
| 45 | Ukraine | 2,334,978 | 2017 | |
| 46 | Cameroon | 2,206,878 | 2016 | |
| 47 | Sudan | 2,205,034 | 2017 | |
| 48 | North Korea | 2,148,364 | 2015 | |
| 49 | Iraq | 2,037,509 | 2007 | |
| 50 | Angola | 2,034,150 | 2016 | |
| 51 | Ecuador | 1,929,522 | 2016 | |
| 52 | Tanzania | 1,920,524 | 2017 | |
| 53 | Yemen | 1,915,871 | 2016 | |
| 54 | Ivory Coast | 1,898,243 | 2017 | |
| 55 | Syria | 1,857,140 | 2013 | |
| 56 | Kazakhstan | 1,842,919 | 2018 | |
| 57 | Netherlands | 1,611,016 | 2016 | |
| 58 | Madagascar | 1,534,273 | 2017 | |
| 59 | Chile | 1,520,724 | 2017 | |
| 60 | Romania | 1,515,238 | 2016 | |
| 61 | Bolivia | 1,236,952 | 2017 | |
| 62 | Guatemala | 1,220,327 | 2017 | |
| 63 | Mozambique | 1,216,214 | 2017 | |
| 64 | Belgium | 1,196,383 | 2016 | |
| 65 | Burkina Faso | 1,162,297 | 2017 | |
| 66 | Senegal | 1,082,330 | 2017 | |
| 67 | Tajikistan | 1,062,975 | 2013 | |
| 68 | Tunisia | 1,047,035 | 2016 | |
| 69 | Uganda | 1,031,520 | 2007 | |
| 70 | Mali | 1,017,415 | 2017 | |
| 71 | Malawi | 998,940 | 2017 | |
| 72 | Benin | 992,999 | 2016 | |
| 73 | Zimbabwe | 957,461 | 2013 | |
| 74 | Cambodia | 930,200 | 2008 | |
| 75 | Dominican Republic | 924,737 | 2017 | |
| 76 | Sweden | 856,094 | 2016 | |
| 77 | Azerbaijan | 819,625 | 1997 | |
| 78 | Israel | 819,462 | 2017 | |
| 79 | Cuba | 815,786 | 2017 | |
| 80 | Hungary | 808,744 | 2016 | |
| 81 | Niger | 786,582 | 2017 | |
| 82 | Portugal | 766,052 | 2016 | |
| 83 | Czech Republic | 765,502 | 2016 | |
| 84 | Jordan | 763,694 | 2017 | |
| 85 | Libya | 732,614 | 2006 | |
| 86 | Togo | 727,949 | 2017 | |
| 87 | Guinea | 715,702 | 2014 | |
| 88 | Austria | 687,361 | 2017 | |
| 89 | Laos | 677,497 | 2017 | |
| 90 | Burundi | 665,116 | 2017 | |
| 91 | Greece | 662,446 | 2016 | |
| 92 | Kyrgyzstan | 660,063 | 2017 | |
| 93 | Honduras | 655,090 | 2017 | |
| 94 | Turkmenistan | 650,998 | 2014 | |
| 95 | Belarus | 644,334 | 2017 | |
| 96 | Paraguay | 611,308 | 2016 | |
| 97 | Rwanda | 610,972 | 2017 | |
| 98 | Switzerland | 609,783 | 2016 | |
| 99 | Denmark | 540,622 | 2016 | |
| 100 | Finland | 539,816 | 2016 | |
| 101 | Serbia | 538,238 | 2017 | |
| 102 | El Salvador | 535,680 | 2017 | |
| 103 | Chad | 535,112 | 2016 | |
| 104 | Papua New Guinea | 507,278 | 2016 | |
| 105 | Sierra Leone | 492,140 | 2017 | |
| 106 | Bulgaria | 487,087 | 2016 | |
| 107 | New Zealand | 486,333 | 2017 | |
| 108 | Nicaragua | 465,201 | 2010 | |
| 109 | Costa Rica | 462,855 | 2016 | |
| 110 | Norway | 447,525 | 2017 | |
| 111 | Slovakia | 446,922 | 2016 | |
| 112 | United Arab Emirates | 441,510 | 2016 | |
| 113 | Lebanon | 401,031 | 2017 | |
| 114 | Republic of Ireland | 360,088 | 2016 | |
| 115 | Hong Kong | 357,158 | 2017 | |
| 116 | Croatia | 349,018 | 2016 | |
| 117 | Uruguay | 347,841 | 2016 | |
| 118 | Panama | 344,790 | 2016 | |
| 119 | Republic of the Congo | 339,250 | 2012 | |
| 120 | Kuwait | 302,047 | 2015 | |
| 121 | Oman | 295,770 | 2017 | |
| 122 | Albania | 280,378 | 2017 | |
| 123 | Mongolia | 275,983 | 2010 | |
| 124 | Georgia | 275,464 | 2017 | |
| 125 | Bosnia and Herzegovina | 253,070 | 2017 | |
| 126 | Lithuania | 250,870 | 2016 | |
| 127 | Eritrea | 247,424 | 2017 | |
| 128 | Armenia | 240,291 | 2015 | |
| 129 | Puerto Rico | 236,001 | 2016 | |
| 130 | Moldova | 227,263 | 2017 | |
| 131 | Liberia | 227,153 | 2016 | |
| 132 | Mauritania | 209,126 | 2017 | |
| 133 | Zambia | 208,640 | 1994 | |
| 134 | Jamaica | 204,080 | 2017 | |
| 135 | Singapore | 179,676 | 2016 | |
| 136 | Republic of Macedonia | 168,967 | 2015 | |
| 137 | Botswana | 168,220 | 2008 | |
| 138 | South Sudan | 164,135 | 2015 | |
| 139 | Namibia | 158,162 | 2007 | |
| 140 | East Timor | 149,883 | 2017 | |
| 141 | Slovenia | 148,896 | 2016 | |
| 142 | Haiti | 143,758 | 1986 | |
| 143 | Central African Republic | 137,844 | 2017 | |
| 144 | Lesotho | 136,497 | 2017 | |
| 145 | Mauritius | 125,270 | 2017 | |
| 146 | Gambia | 124,397 | 2010 | |
| 147 | Latvia | 117,360 | 2017 | |
| 148 | Swaziland | 108,288 | 2016 | |
| 149 | Trinidad and Tobago | 105,381 | 2004 | |
| 150 | Gabon | 105,191 | 2002 | |
| 151 | Qatar | 103,042 | 2017 | |
| 152 | Bahrain | 97,733 | 2017 | |
| 153 | Fiji | 97,254 | 2012 | |
| 154 | Guyana | 85,934 | 2012 | |
| 155 | Estonia | 80,212 | 2016 | |
| 156 | Bhutan | 75,444 | 2017 | |
| 157 | Comoros | 67,445 | 2017 | |
| 158 | Djibouti | 65,144 | 2018 | |
| 159 | Montenegro | 57,575 | 2017 | |
| 160 | Cyprus | 57,161 | 2015 | |
| 161 | Cape Verde | 56,469 | 2017 | |
| 162 | Guinea-Bissau | 55,176 | 2006 | |
| 163 | Suriname | 54,721 | 2015 | |
| 164 | Luxembourg | 47,715 | 2016 | |
| 165 | Brunei | 44,464 | 2017 | |
| 166 | Solomon Islands | 41,660 | 2012 | |
| 167 | Belize | 39,756 | 2017 | |
| 168 | Iceland | 35,651 | 2016 | |
| 169 | Maldives | 28,878 | 2004 | |
| 170 | Malta | 28,776 | 2016 | |
| 171 | The Bahamas | 28,384 | 2016 | |
| 172 | Macao | 27,473 | 2017 | |
| 173 | Samoa | 25,964 | 2016 | |
| 174 | São Tomé and Príncipe | 25,875 | 2017 | |
| 175 | New Caledonia | 25,560 | 1997 | |
| 176 | Equatorial Guinea | 25,544 | 2005 | |
| 177 | French Polynesia | 22,366 | 1993 | |
| 178 | Vanuatu | 20,568 | 2015 | |
| 179 | Barbados | 20,249 | 2017 | |
| 180 | Guam | 16,017 | 1989 | |
| 181 | Tonga | 15,800 | 2015 | |
| 182 | Federated States of Micronesia | 13,634 | 2005 | |
| 183 | Virgin Islands (US) | 12,900 | 1997 | |
| 184 | Saint Lucia | 12,217 | 2017 | |
| 185 | Kiribati | 11,583 | 2008 | |
| 186 | Curacao | 11,219 | 2013 | |
| 187 | Saint Vincent and the Grenadines | 10,113 | 2017 | |
| 188 | Grenada | 8,834 | 2017 | |
| 189 | Aruba | 8,377 | 2012 | |
| 190 | Antigua and Barbuda | 7,839 | 2017 | |
| 191 | Seychelles | 7,362 | 2017 | |
| 192 | Dominica | 5,561 | 2015 | |
| 193 | Marshall Islands | 5,500 | 2016 | |
| 194 | Andorra | 4,492 | 2017 | |
| 195 | Saint Kitts And Nevis | 4,175 | 2016 | |
| 196 | Bermuda | 4,040 | 2015 | |
| 197 | American Samoa | 3,643 | 1992 | |
| 198 | Cayman Islands | 3,476 | 2018 | |
| 199 | Monaco | 3,426 | 2017 | |
| 200 | Liechtenstein | 3,272 | 2016 | |
| 201 | Faroe Islands | 2,776 | 1971 | |
| 202 | Sint Maarten | 2,713 | 2014 | |
| 203 | San Marino | 2,407 | 2012 | |
| 204 | Virgin Islands (British) | 2,255 | 2017 | |
| 205 | Turks And Caicos Islands | 2,013 | 2015 | |
| 206 | Palau | 1,604 | 2014 | |
| 207 | Tuvalu | 1,123 | 2016 | |
| 208 | Nauru | 992 | 2016 |