Average IQ in Grenada
Grenada has an average IQ of 77, ranking #161 out of 195 countries globally. This is considered below the global average on the worldwide scale.
Key Statistics
Education System in Grenada
Grenada provides free compulsory education through age 16 in English. The island is home to St. George's University, a major international medical school.
IQ and Economic Development
Grenada's GDP per capita of $16,450 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 9.4 average years of schooling and a 3.2% GDP investment in education, Grenada has room to increase education investment relative to GDP.
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Countries with Similar IQ Scores
North America Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | Canada | 101 |
| 2 | United States | 100 |
| 3 | Mexico | 90 |
| 4 | Costa Rica | 89 |
| 5 | Cuba | 88 |
| 6 | Panama | 87 |
| 7 | Dominican Republic | 85 |
| 8 | Honduras | 84 |
| 9 | Trinidad and Tobago | 83 |
| 10 | Guatemala | 83 |
Data Sources for Grenada
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.
Grenada'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.