Average IQ in Brazil
Brazil has an average IQ of 90, ranking #71 out of 195 countries globally. This is considered average on the worldwide scale.
Key Statistics
Education System in Brazil
Brazil provides 14 years of compulsory education (ages 4-17). As the largest country in Latin America, significant regional disparities exist between the more developed south and the less developed north.
IQ and Economic Development
Brazil's GDP per capita of $15,130 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 8.1 average years of schooling and a 6.1% GDP investment in education, Brazil invests heavily in its education system compared to global norms.
Countries with Similar IQ Scores
South America Rankings
Data Sources for Brazil
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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