Average IQ in South Korea
12,363 people in South Korea took the same 20-question IQ test as everyone else on the map. South Korea ranks #9 of 53 countries.
Where South Korea sits
Netherlands107.0
South Korea106.6
India106.1
People who took the test in Korean scored lower than people from South Korea who took it in another language — 106.6 vs 109.7 (12,247 vs 116 people). That is most likely a translation or localization effect, not a claim about anyone's ability — see the method page for the full country-by-country breakdown.
100 is the average score of everyone who has taken the test since 2026-07-15, and 15 points is one standard deviation. People choose to take the test online, so this shows how South Korea's test-takers scored — it is not an official national measurement.
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