Average IQ in Guyana
Guyana has an average IQ of 76, ranking #166 out of 195 countries globally. This is considered below the global average on the worldwide scale.
Key Statistics
Education System in Guyana
Guyana provides free compulsory education from ages 5 to 15 in English. The country's recent oil boom is driving increased education investment.
Note: GDP per capita has surged due to recent offshore oil discoveries beginning in 2020, dramatically changing the economic profile.
IQ and Economic Development
Guyana's GDP per capita of $42,610 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 8.5 average years of schooling and a 4.5% GDP investment in education, Guyana maintains a moderate investment in education.
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Countries with Similar IQ Scores
South America Rankings
Data Sources for Guyana
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
See where your own score lands.
Guyana's average is an estimate from limited data. Your own number is something you can measure: take the free 50-question IQ test for your exact score and where you land against every country on this map.