Average IQ in Tanzania
Tanzania has an average IQ of 78, ranking #154 out of 195 countries globally. This is considered below the global average on the worldwide scale.
Key Statistics
Education System in Tanzania
Tanzania provides 7 years of compulsory primary education with instruction in Swahili. The country has eliminated primary school fees, dramatically increasing enrollment rates.
IQ and Economic Development
Tanzania's GDP per capita of $2,950 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 6 average years of schooling and a 3.4% GDP investment in education, Tanzania has room to increase education investment relative to GDP.
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 Tanzania
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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