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.
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.
Countries with Similar IQ Scores
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
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