Average IQ in São Tomé and Príncipe
São Tomé and Príncipe has an average IQ of 72, ranking #182 out of 195 countries globally. This is considered below the global average on the worldwide scale.
Key Statistics
Education System in São Tomé and Príncipe
São Tomé and Príncipe provides 6 years of compulsory education in Portuguese. The small island nation has relatively high literacy rates for the region.
IQ and Economic Development
São Tomé and Príncipe's GDP per capita of $4,560 reflects a lower-income economy. Research shows a moderate correlation (r ≈ 0.7) between national GDP and measured IQ, though this relationship is complex and bidirectional.
With 5.9 average years of schooling and a 5% GDP investment in education, São Tomé and Príncipe maintains a moderate investment in education.
Countries with Similar IQ Scores
Africa Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | Mauritius | 92 |
| 2 | Morocco | 87 |
| 3 | Tunisia | 87 |
| 4 | Egypt | 86 |
| 5 | Algeria | 86 |
| 6 | Seychelles | 86 |
| 7 | Libya | 85 |
| 8 | South Africa | 84 |
| 9 | Nigeria | 84 |
| 10 | Madagascar | 84 |
Data Sources for São Tomé and Príncipe
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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