The OECD list compares the percentage of each country’s residents ages 25 to 64 who have completed some form of tertiary education: a two-year or four-year degree or a vocational program. Based on the OECD’s data, Canada is the most educated country globally, with 60% of adults meeting the OECD criteria. Russia has the second-highest percentage of 56.7%, followed by Japan with 52.7%.
Below the list of most educated countries by 2022 according to OECD Data:
| country | tertiary | upperSecondary | belowUpperSecondary | pop2022 |
| Canada | 60 | 32.5 | 7.6 | 38454.327 |
| Russia | 56.7 | 38.5 | 4.8 | 144713.314 |
| Japan | 52.7 | 123951.692 | ||
| Luxembourg | 51.3 | 22.8 | 25.8 | 647.599 |
| South Korea | 50.7 | 38.6 | 10.6 | 51815.81 |
| United States | 50.1 | 41.7 | 8.3 | 338289.857 |
| Israel | 50.1 | 37.9 | 12 | 9038.309 |
| Ireland | 49.9 | 35.5 | 14.5 | 5023.109 |
| United Kingdom | 49.4 | 32.3 | 18.3 | 67508.936 |
| Australia | 49.3 | 34.4 | 16.2 | 26177.413 |
| Finland | 47.9 | 43.3 | 8.8 | 5540.745 |
| Switzerland | 45.3 | 44 | 10.7 | 8740.472 |
| Norway | 45.3 | 37.2 | 17.5 | 5434.319 |
| Sweden | 44.6 | 39.3 | 16.1 | 10549.347 |
| Lithuania | 44.1 | 49.5 | 6.4 | 2750.055 |
| Netherlands | 42.6 | 38.4 | 19 | 17564.014 |
| Belgium | 42.4 | 37.3 | 20.2 | 11655.93 |
| Estonia | 42.2 | 48.4 | 9.3 | 1326.062 |
| Iceland | 40.6 | 35.3 | 24.1 | 372.899 |
| New Zealand | 40.1 | 40.8 | 19.1 | 5185.288 |
| France | 39.7 | 41.8 | 18.5 | 64626.628 |
| Spain | 39.7 | 23.2 | 37.1 | 47558.63 |
| Denmark | 39.3 | 42 | 18.6 | 5882.261 |
| Latvia | 37.8 | 51.6 | 10.5 | 1850.651 |
| Slovenia | 35.9 | 54.4 | 9.8 | 2119.844 |
| Argentina | 35.7 | 28 | 36.4 | 45510.318 |
| Austria | 34.2 | 51.5 | 14.3 | 8939.617 |
| Greece | 32.7 | 43.7 | 23.6 | 10384.971 |
| Poland | 32.4 | 60.4 | 6.8 | 39857.145 |
| Germany | 31.3 | 54.9 | 13.9 | 83369.843 |
| Portugal | 28.2 | 27.2 | 44.6 | 10270.865 |
| Hungary | 27.2 | 58.4 | 14.4 | 9967.308 |
| Slovakia | 26.8 | 65.7 | 7.5 | 5643.453 |
| Chile | 25.2 | 42.3 | 32.6 | 19603.733 |
| Costa Rica | 25.1 | 17.6 | 57.3 | 5180.829 |
| Czech Republic | 24.9 | 69.2 | 5.9 | 10493.986 |
| Colombia | 24.6 | 34.2 | 41.2 | 51874.024 |
| Saudi Arabia | 23.6 | 32.9 | 43.5 | 36408.82 |
| Turkey | 22 | 19.7 | 58.3 | 85341.241 |
| Brazil | 20.1 | 36.9 | 43 | 215313.498 |
| Italy | 20.1 | 42.7 | 37.1 | 59037.474 |
| Mexico | 19.4 | 22.2 | 58.4 | 127504.125 |
| South Africa | 15.8 | 31.8 | 52.3 | 59893.885 |
| Indonesia | 11.9 | 26 | 62.1 | 275501.339 |
