Average IQ in Japan
Japan has an average IQ of 106, ranking #3 out of 195 countries globally. This is considered very high on the worldwide scale.
Compare Japan with similar countries
Japan's average is 106. Open nearby profiles to see how the ranking, education data, and methodology compare.
Key Statistics
Education System in Japan
Japan uses a 6-3-3 system (elementary, junior high, high school) with rigorous national curriculum standards. The country consistently ranks among the top performers on PISA assessments.
IQ and Economic Development
Japan's GDP per capita of $42,940 places it among the world's wealthier nations. Research shows a moderate correlation (r ≈ 0.7) between national GDP and measured IQ, though this relationship is complex and bidirectional.
With 13.4 average years of schooling and a 3.4% GDP investment in education, Japan has room to increase education investment relative to GDP.
Asia Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | Singapore | 108 |
| 2 | South Korea | 106 |
| 3 | China | 106 |
| 4 | North Korea | 102 |
| 5 | Mongolia | 101 |
| 6 | Israel | 100 |
| 7 | Vietnam | 99 |
| 8 | Kazakhstan | 96 |
| 9 | Malaysia | 95 |
| 10 | Georgia | 94 |
Data Sources for Japan
National IQ estimates are approximate and based on meta-analyses of available cognitive testing data (Becker, 2019; Lynn & Vanhanen, 2012; World Population Review, 2025). These scores reflect measured test performance and are influenced by education, nutrition, healthcare, and socioeconomic factors — they do not measure innate intelligence. Within-country variation is much larger than between-country differences. IQ tests developed in Western contexts may not translate fairly across all cultures. Interpret with appropriate caution.
See the full methodology on our main IQ by Country page for complete source descriptions and data quality notes.
Frequently Asked Questions
Country averages answer curiosity. If the question behind your search is really about your own path, start with our career aptitude test guide — what these tests measure, what they miss, and how to use one well.
Where a number like this actually leads
A national average says little about any individual. What a score does predict is the kind of work it suits — that is the question the career tools answer.
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