The Organization for Co-operation and Development (OECD) stated Russia the most educated country in the world, says the USA Today. More than half of Russian adults held tertiary degrees in 2012 — the equivalent of college degree in the United States — more than in any other country reviewed. Then come Canada, Japan, Israel, and the USA.

To identify the most educated countries in the world, 24/7 Wall St. reviewed the 10 countries with the highest proportions of residents aged 25 to 64 with a tertiary education in 2012. These data were included as part of the OECD's 2014 Education at a Glance report. The countries considered included the 34 OECD member countries, and ten non-OECD nations. Included in the report were data on the proportion of adults completing various levels of education, unemployment rates, as well as public and private education expenditure. We also reviewed data from the OECD's Survey of Adult Skills, which included advanced adult proficiency in both math and reading. The most current figures for education expenditure by country are from 2011.

These are the most educated countries in the world.

1) Russian Federation

Pct. population with tertiary education: 53.5%

Tertiary education spending per student: $7,424

2) Canada

Pct. population with tertiary education: 52.6%

Tertiary education spending per student: $23,225

3) Japan

Pct. population with tertiary education: 46.6%

Tertiary education spending per student: $16,445

4) Israel

Pct. population with tertiary education: 46.4%

Tertiary education spending per student: $11,553

5) United States

Pct. population with tertiary education: 43.1%

Tertiary education spending per student: $26,021