Average IQ in Peru: Estimates & Context
Estimated Avg IQ
~85
Rank in This Dataset
#91
of 125 countries covered
Region
South America
Important note: National average IQ scores are estimates based on limited sample sizes and vary across studies. These figures are heavily influenced by socioeconomic factors, access to quality education, healthcare, nutrition, and testing conditions. They do not reflect the intelligence or potential of any individual from that country. IQ scores measure specific cognitive skills and should be interpreted within their proper scientific context.
Where These Numbers Come From — and Why They're Debated
There is no official global IQ census. National IQ figures like the one above come from compiled cross-national datasets — most famously the compilations begun by Richard Lynn and Tatu Vanhanen (IQ and the Wealth of Nations, 2002) and successor datasets, alongside alternative estimates derived from international student assessments such as PISA and TIMSS. These compilations are heavily debated in the academic literature: critics have documented small and unrepresentative samples for many countries, scores extrapolated from neighboring nations, mixing of different tests and decades, and translation and cultural-fit problems. Different datasets can shift a country's estimate — and its rank — by several points.
For these reasons, the figure for Peru should be read as a rough estimate of average performance on Western-style cognitive tests under the conditions in which the underlying samples were collected — not as a measure of the innate ability or potential of Peru's people. Population-level test averages track education access, childhood nutrition, health, and economic development, and they change as those conditions change (see the Flynn Effect below).
Education System in Peru
Peru has made education a stated national priority, increasing the education budget significantly over the past two decades. The country participates in PISA and has shown some improvement but remains well below OECD averages. Significant disparities exist between Lima's urban schools and rural Andean and Amazonian communities. Intercultural bilingual education for Indigenous communities has expanded, though implementation quality varies. Teacher quality improvement has been a major reform focus, with new evaluation and incentive systems introduced.
To understand what IQ scores measure and how they're calculated, see our guide on what IQ is. For a breakdown of what different score levels mean, visit our IQ score ranges page.
Peru Compared to South America
South America IQ Comparison
Here is how Peru compares to other countries in South America that are included in our database:
| Country | Average IQ | Global Rank |
|---|---|---|
| Peru | 85 | #91 |
| Argentina | 93 | #55 |
| Colombia | 89 | #85 |
| Bolivia | 87 | #89 |
| Ecuador | 89 | #90 |
| Chile | 90 | #92 |
Countries with Similar Rankings
These countries have similar average IQ scores and global rankings to Peru:
| Country | Average IQ | Global Rank | Region |
|---|---|---|---|
| Algeria | 84 | #81 | Africa |
| Tunisia | 83 | #82 | Africa |
| Tanzania | 72 | #83 | Africa |
| Uganda | 73 | #84 | Africa |
| Colombia | 89 | #85 | South America |
Understanding IQ Distribution
It's crucial to remember that national averages represent the middle of a wide distribution. Within every country, individual IQ scores span the full range from below 70 to above 130 and beyond. A country with an average IQ of 85 will have many individuals scoring well above and below that number. Factors like socioeconomic status, nutrition, education quality, and access to healthcare play significant roles in cognitive development and test performance.
The Flynn Effect — the observation that IQ scores have risen substantially over time in many countries — suggests that environmental improvements like better nutrition, healthcare, and education access can significantly impact cognitive test performance at the population level. Many developing nations are experiencing rapid improvements in these areas.
Frequently Asked Questions
What is the average IQ in Peru?
Peru's average IQ is estimated at 85, ranking #91 globally. The country has been increasing education investment and shows gradual improvement on international assessments.
Why does Peru score 85 on average IQ?
Peru's score reflects significant urban-rural educational disparities, with Lima performing much closer to OECD averages while rural Andean and Amazonian communities face significant resource and access challenges. High income inequality, limited qualified teacher availability in remote areas, and historical underinvestment in Indigenous education are the primary factors.
How does Peru compare to Chile?
Peru (85) scores below Chile (90). Chile has invested more heavily and consistently in education, has a higher income level, and has achieved more uniform quality across urban and rural areas, though Chile still faces significant inequality in educational outcomes between private and public schools.
Explore More Countries
See the full list of all countries on our Average IQ by Country page, or take our free IQ test to see how you compare.
MyIQScores Editorial Team
Editorial team focused on cognitive testing & psychometrics research
Last updated
May 10, 2026
MyIQScores content is written and maintained by our editorial team using published research in cognitive psychology and psychometrics as its source base. We label estimates as estimates, link primary sources where available, correct errors when readers flag them, and update pages as research or feedback warrants — see our corrections policy.