The 20 Countries with the Highest IQ According to Online Tests

The 20 countries with the highest IQ according to online tests. Illustration: Techbreak / Condutta

A new study released by the “International IQ Test” website on January 1, 2025, revealed the average IQ by country, based on data collected from 1,393,066 people worldwide who took the same test throughout 2024.

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The results offer an interesting perspective on average intellectual abilities in different nations, highlighting regional and cultural differences.

Check out some of the most notable rankings below:

Ranking Country IQ Participants
1. China 107.43 117312
2. Iran 106.63 4064
3. South Korea 106.57 24227
4. Japan 106.54 149450
5. Singapore 105.25 5349
6. Russia 103.31 19985
7. Mongolia 103.13 2744
8. Australia 102.67 9812
9. Armenia 102.64 450
10. Spain 102.37 11583
11. Sri Lanka 102.21 2924
12. New Zealand 102.2 2455
13. Slovenia 102.19 2518
14. Canada 101.73 8047
15. Thailand 101.66 23339
16. Belarus 101.58 7306
17. France 101.54 8290
18. Serbia 101.03 5995
19. Italy 101.03 19016
20. Switzerland 100.85 5760

Study Methodology

The study analyzed results from over 1.3 million participants from various parts of the world who took the standardized test on the “International IQ Test” website in 2024.

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The comparative assessment considered aspects such as logic, memory, and analytical skills, ensuring a uniform metric for all analyzed countries.

Online IQ tests, like those used to create global rankings, have limited scientific validity due to the lack of rigorous psychometric standards, uncontrolled test environments, and biased demographic samples. Unlike professional evaluations, which measure various aspects of intelligence under expert supervision, these tests simplify the assessed skills and may be influenced by distractions or commercial motivations.

Thus, while they generate curiosity and entertainment, they should not be considered a reliable or precise measure of intelligence.

Source: international-iq-test. This content was created with AI assistance and reviewed by the editorial team.