Average IQ in Thailand
Thailand has an average IQ of 93, ranking #63 out of 195 countries globally. This is considered average on the worldwide scale.
Key Statistics
Education System in Thailand
Thailand provides 15 years of free education (3 pre-primary + 6 primary + 6 secondary). The government has invested heavily in expanding access, though quality gaps between urban and rural areas persist.
IQ and Economic Development
Thailand's GDP per capita of $18,400 reflects a developing economy. Research shows a moderate correlation (r ≈ 0.7) between national GDP and measured IQ, though this relationship is complex and bidirectional.
With 8.7 average years of schooling and a 3.2% GDP investment in education, Thailand has room to increase education investment relative to GDP.
Countries with Similar IQ Scores
Asia Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | Singapore | 108 |
| 2 | Japan | 106 |
| 3 | South Korea | 106 |
| 4 | China | 106 |
| 5 | North Korea | 102 |
| 6 | Mongolia | 101 |
| 7 | Israel | 100 |
| 8 | Vietnam | 99 |
| 9 | Kazakhstan | 96 |
| 10 | Malaysia | 95 |
Data Sources for Thailand
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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