| # | Flag | Country | Educational attainment, at least completed lower secondary, population 25+, total (%) (cumulative)Educational attainment, at least completed lower secondary, population 25+, total (%) (cumulative) | Year |
|---|---|---|---|---|
| 1 | Luxembourg | 100% | 2015 | |
| 2 | Latvia | 100% | 2016 | |
| 3 | Greenland | 100% | 2015 | |
| 4 | New Zealand | 100% | 2016 | |
| 5 | Uzbekistan | 99.904% | 2016 | |
| 6 | United Kingdom | 99.86% | 2014 | |
| 7 | Czech Republic | 99.804% | 2016 | |
| 8 | Slovakia | 99.295% | 2016 | |
| 9 | Norway | 99.234% | 2016 | |
| 10 | Austria | 98.923% | 2014 | |
| 11 | Georgia | 97.952% | 2016 | |
| 12 | Slovenia | 97.62% | 2016 | |
| 13 | Armenia | 97.222% | 2015 | |
| 14 | Hungary | 97.177% | 2016 | |
| 15 | Palau | 97.123% | 2013 | |
| 16 | Switzerland | 96.89% | 2016 | |
| 17 | Liechtenstein | 96.672% | 2000 | |
| 18 | Germany | 96.514% | 2016 | |
| 19 | Moldova | 96.376% | 2015 | |
| 20 | Iceland | 95.844% | 2005 | |
| 21 | Kyrgyzstan | 95.693% | 2009 | |
| 22 | Azerbaijan | 95.641% | 2016 | |
| 23 | United States | 95.585% | 2016 | |
| 24 | Kazakhstan | 95.567% | 2009 | |
| 25 | Cayman Islands | 95.251% | 2015 | |
| 26 | Bulgaria | 95.143% | 2016 | |
| 27 | Lithuania | 94.941% | 2016 | |
| 28 | Tajikistan | 94.529% | 2017 | |
| 29 | Russia | 93.66% | 2010 | |
| 30 | Australia | 92.764% | 2016 | |
| 31 | Denmark | 92.45% | 2016 | |
| 32 | Marshall Islands | 92.061% | 2011 | |
| 33 | Belarus | 91.902% | 2009 | |
| 34 | Bermuda | 91.328% | 2000 | |
| 35 | Turkmenistan | 90.768% | 1995 | |
| 36 | Sweden | 90.544% | 2016 | |
| 37 | Romania | 90.004% | 2016 | |
| 38 | Netherlands | 89.714% | 2016 | |
| 39 | Serbia | 89.49% | 2016 | |
| 40 | Montenegro | 89.425% | 2011 | |
| 41 | Estonia | 89.358% | 2000 | |
| 42 | Croatia | 89.219% | 2011 | |
| 43 | Israel | 89.181% | 2015 | |
| 44 | The Bahamas | 89.137% | 2010 | |
| 45 | Ukraine | 88.543% | 2001 | |
| 46 | Puerto Rico | 88.452% | 2017 | |
| 47 | Tonga | 87.998% | 2011 | |
| 48 | Albania | 87.215% | 2012 | |
| 49 | Republic of Ireland | 86.161% | 2017 | |
| 50 | Guam | 86.152% | 1990 | |
| 51 | South Korea | 85.721% | 2015 | |
| 52 | Poland | 85.328% | 2016 | |
| 53 | Belgium | 84.79% | 2016 | |
| 54 | Mongolia | 84.713% | 2010 | |
| 55 | Belize | 83.935% | 2010 | |
| 56 | France | 83.686% | 2016 | |
| 57 | Canada | 83.618% | 1991 | |
| 58 | Sri Lanka | 81.613% | 2016 | |
| 59 | Bosnia and Herzegovina | 81.166% | 2016 | |
| 60 | Cuba | 81.148% | 2012 | |
| 61 | Cyprus | 80.313% | 2016 | |
| 62 | Singapore | 79.607% | 2016 | |
| 63 | Hong Kong | 79.4% | 2017 | |
| 64 | Chile | 78.531% | 2015 | |
| 65 | Italy | 78.458% | 2015 | |
| 66 | Malta | 78.219% | 2016 | |
| 67 | Barbados | 78.104% | 2000 | |
| 68 | South Africa | 77.181% | 2015 | |
| 69 | Spain | 75.798% | 2016 | |
| 70 | Venezuela | 74.43% | 2016 | |
| 71 | Malaysia | 74.207% | 2016 | |
| 72 | Jordan | 74.111% | 2010 | |
| 73 | Macao | 73.339% | 2016 | |
| 74 | Andorra | 72.327% | 2016 | |
| 75 | United Arab Emirates | 70.71% | 2016 | |
| 76 | Philippines | 70.058% | 2013 | |
| 77 | Iran | 69.831% | 2016 | |
| 78 | Seychelles | 69.625% | 2002 | |
| 79 | Saint Kitts And Nevis | 69.596% | 1980 | |
| 80 | French Polynesia | 69.399% | 2007 | |
| 81 | Qatar | 67.496% | 2016 | |
| 82 | Saudi Arabia | 66.509% | 2013 | |
| 83 | Oman | 66.419% | 2015 | |
| 84 | Japan | 65.637% | 1990 | |
| 85 | China | 65.323% | 2010 | |
| 86 | Vietnam | 65% | 2009 | |
| 87 | Greece | 64.803% | 2016 | |
| 88 | Peru | 62.297% | 2015 | |
| 89 | Suriname | 61.804% | 2012 | |
| 90 | Panama | 61.49% | 2010 | |
| 91 | Aruba | 60.8% | 2010 | |
| 92 | Jamaica | 60.715% | 2011 | |
| 93 | Fiji | 60.303% | 2007 | |
| 94 | Mexico | 59.713% | 2016 | |
| 95 | Trinidad and Tobago | 59.63% | 2009 | |
| 96 | Bolivia | 58.821% | 2015 | |
| 97 | Zimbabwe | 58.763% | 2014 | |
| 98 | Brazil | 57.571% | 2015 | |
| 99 | Monaco | 57.106% | 1975 | |
| 100 | Dominican Republic | 56.611% | 2015 | |
| 101 | Uruguay | 56.031% | 2017 | |
| 102 | Kuwait | 55.872% | 2015 | |
| 103 | Virgin Islands (British) | 55.547% | 1991 | |
| 104 | Argentina | 54.724% | 2016 | |
| 105 | Ghana | 54.32% | 2010 | |
| 106 | Lebanon | 54.288% | 2007 | |
| 107 | Mauritius | 54.245% | 2011 | |
| 108 | Portugal | 54.191% | 2016 | |
| 109 | Cambodia | 54.111% | 2015 | |
| 110 | Turkey | 53.567% | 2016 | |
| 111 | Bahrain | 53.31% | 2016 | |
| 112 | Costa Rica | 53.107% | 2016 | |
| 113 | Colombia | 52.079% | 2016 | |
| 114 | Ecuador | 51.864% | 2016 | |
| 115 | Democratic Republic Of Congo | 50.664% | 2016 | |
| 116 | Finland | 50.626% | 1990 | |
| 117 | Nigeria | 49.42% | 2006 | |
| 118 | Republic of Macedonia | 47.797% | 2002 | |
| 119 | Paraguay | 47.796% | 2016 | |
| 120 | Algeria | 47.305% | 2008 | |
| 121 | Saint Lucia | 45.893% | 2013 | |
| 122 | Thailand | 45.07% | 2016 | |
| 123 | Tunisia | 44.591% | 2016 | |
| 124 | Iraq | 44.132% | 2013 | |
| 125 | Indonesia | 43.972% | 2016 | |
| 126 | El Salvador | 42.783% | 2017 | |
| 127 | Bangladesh | 41.501% | 2016 | |
| 128 | Samoa | 40.957% | 1981 | |
| 129 | Brunei | 39.593% | 1981 | |
| 130 | São Tomé and Príncipe | 38.859% | 2012 | |
| 131 | India | 37.566% | 2011 | |
| 132 | Pakistan | 37.238% | 2016 | |
| 133 | Guatemala | 36.794% | 2014 | |
| 134 | Cameroon | 36.228% | 2010 | |
| 135 | Syria | 34.07% | 2009 | |
| 136 | Honduras | 33.695% | 2016 | |
| 137 | South Sudan | 33.17% | 2008 | |
| 138 | Guyana | 31.193% | 2002 | |
| 139 | Cape Verde | 29.352% | 2015 | |
| 140 | Kenya | 29.074% | 2010 | |
| 141 | Angola | 28.923% | 2014 | |
| 142 | Namibia | 28.513% | 2001 | |
| 143 | Nepal | 26.938% | 2011 | |
| 144 | Dominica | 26.584% | 2001 | |
| 145 | Turks And Caicos Islands | 24.545% | 1980 | |
| 146 | Tuvalu | 24.317% | 1991 | |
| 147 | Uganda | 24.026% | 2012 | |
| 148 | Swaziland | 23.015% | 1986 | |
| 149 | Vanuatu | 22% | 1979 | |
| 150 | Zambia | 21.736% | 1990 | |
| 151 | Ivory Coast | 21.12% | 2014 | |
| 152 | Lesotho | 20.872% | 2008 | |
| 153 | Republic of the Congo | 19.72% | 1984 | |
| 154 | Togo | 18.271% | 2011 | |
| 155 | Senegal | 17.825% | 2017 | |
| 156 | Mozambique | 16.847% | 2015 | |
| 157 | Myanmar | 16.5% | 1983 | |
| 158 | Libya | 16.4% | 1984 | |
| 159 | Maldives | 15.877% | 2006 | |
| 160 | Benin | 14.317% | 2002 | |
| 161 | Ethiopia | 12.512% | 2011 | |
| 162 | Rwanda | 11.974% | 2014 | |
| 163 | Guinea | 11.683% | 2010 | |
| 164 | Tanzania | 11.027% | 2012 | |
| 165 | Haiti | 10.028% | 1986 | |
| 166 | Grenada | 10.004% | 1981 | |
| 167 | Saint Vincent and the Grenadines | 9.6% | 1980 | |
| 168 | Bhutan | 9.598% | 2012 | |
| 169 | Central African Republic | 9.446% | 1988 | |
| 170 | Liberia | 9.081% | 1974 | |
| 171 | Malawi | 8.572% | 1998 | |
| 172 | Burkina Faso | 8.488% | 2014 | |
| 173 | Niger | 8.365% | 2012 | |
| 174 | Mali | 7.795% | 2016 | |
| 175 | Burundi | 5.929% | 2014 | |
| 176 | Mauritania | 5.1% | 1988 | |
| 177 | Afghanistan | 4.149% | 1979 | |
| 178 | Gambia | 3.815% | 1973 | |
| 179 | Botswana | 3.093% | 1971 |