IQ Career Lab

Average IQ in Sudan

Sudan has an average IQ of 78, ranking #153 out of 195 countries globally. This is considered below the global average on the worldwide scale.

78
Average IQ Score
Below 80 (Below 80) · Rank #153 of 195
Source: Lynn & Vanhanen (2012) (2012)

Key Statistics

Population
46,900,000
GDP per Capita (PPP)
$4,210
World Bank, 2023
Literacy Rate
61%
UNESCO, 2023
Human Development Index
0.508
UNDP, 2023
Mean Years of Schooling
3.8
Adults 25+
Education Expenditure
2.2%
% of GDP

Education System in Sudan

Sudan provides 8 years of compulsory education with instruction in Arabic. Ongoing civil conflict has severely disrupted education access across the country.

IQ and Economic Development

Sudan's GDP per capita of $4,210 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 3.8 average years of schooling and a 2.2% GDP investment in education, Sudan has room to increase education investment relative to GDP.

Countries with Similar IQ Scores

Africa Rankings

Data Sources for Sudan

IQ Score:Lynn & Vanhanen (2012) (2012) — from "Intelligence: A Unifying Construct." Some estimates in this dataset may be imputed from educational achievement data rather than direct testing.
GDP & Education Spending:World Bank (2023)
HDI & Schooling:UNDP Human Development Report (2023–2024)
Literacy Rate:UNESCO Institute for Statistics (2023)
Population:UN World Population Prospects (2024)

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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