Average IQ in Seoul (South Korea): Estimates & Key Factors
Estimated Avg IQ
108
IQ Range
105–111
Region
Asia
Seoul is the hyper-urbanized capital of South Korea and the epicenter of its notoriously intense education culture. The city is saturated with hagwons (private tutoring academies) that students attend after school until late in the evening, supplementing an already rigorous national curriculum. South Korea's suneung college entrance exam is a cultural phenomenon that shapes the entire academic trajectory of Seoul's students. The city's dominance in technology (Samsung, LG, Hyundai all headquartered here) attracts the country's top engineering and business graduates, creating a highly educated resident population.
Important note: City-level IQ estimates are especially approximate. They reflect selection effects — cities attract educated, ambitious migrants — as well as local education quality, economic conditions, and available data. These figures do not reflect the intelligence or potential of any individual resident. For context on what IQ scores measure, see our guide to IQ.
Key Factors Shaping IQ in Seoul
- •Densest concentration of hagwons (private tutoring academies) in the world
- •Suneung exam culture drives extreme academic preparation from early childhood
- •Technology industry hub attracting South Korea's top STEM graduates
- •High-density professional class with above-average educational attainment
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.
Seoul vs. South Korea National Average
Seoul's estimate of ~108 sits above South Korea's national estimate of ~106, consistent with the selection effects large cities often show — educated, ambitious people migrating toward economic and cultural capitals.
Where This Number Comes From
No comprehensive IQ survey exists for Seoul — or for almost any city. The figure above is an extrapolation: it starts from national-level estimates (compiled cross-national datasets such as Lynn & Vanhanen's, alongside PISA and TIMSS assessment data), then adjusts for the city's educational attainment and economic composition. Those national compilations are themselves debated in the academic literature, and a city-level extrapolation inherits all of that uncertainty and adds more. Treat the range shown above as an illustrative band, not a measured confidence interval.
Frequently Asked Questions
What is the average IQ in Seoul?
Seoul's estimated average IQ is around 108, above South Korea's national average of 106. The city's extreme academic culture, dense tutoring infrastructure, and concentration of technology companies attract highly educated residents.
Is Seoul's education system the most intense in the world?
Seoul's education culture is among the most competitive globally. Students regularly study 12–16 hours per day, and the city has the highest density of private tutoring academies (hagwons) in the world. This intensity contributes to high academic performance but also significant student stress.
How does Seoul compare to Tokyo?
Seoul and Tokyo score very similarly, both around 108. Both cities share intense academic cultures, high rates of educational attainment, and large concentrations of technology companies. Seoul's private tutoring sector is arguably even more developed than Tokyo's.
Explore More Cities
See all cities on our Average IQ by City 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.