Top 25 Smartest Countries in the World, 2023

Ranked by Average IQ Scores

Discover your genetic IQ score using your 23andMe or AncestryDNA data.

This table represents the top 25 nations ranked by the estimated average IQ test scores of their citizens. Use this data to gain a deeper understanding of global intellectual capabilities.

Countries with higher average IQ scores often have superior education systems and higher per capita income. These factors may be integral to understanding your ancestry and heritage.

Curious about your genetic IQ score? Click the button below to find out and see which top colleges you could potentially join:

Free IQ Range Report
Ranking Country IQ Test Score Average
1 Japan 106.5
1 Taiwan 106.5
3 Singapore 105.9
4 Hong Kong 105.4
5 China 104.1
6 South Korea 102.4
7 Belarus 101.6
8 Finland 101.2
9 Liechtenstein 101.1
10 Germany 100.7
10 Netherlands 100.7
10 Estonia 100.7
13 Luxembourg 99.9
14 Macau 99.8
14 Cambodia 99.8
16 Canada 99.5
17 Australia 99.2
17 Hungary 99.2
17 Switzerland 99.2
20 United Kingdom 99.1
21 Greenland 98.9
22 North Korea 98.8
23 Slovenia 98.6
23 New Zealand 98.6
25 Austria 98.4

Free IQ Report

  1. What is the smartest country in the world?
    Japan and Taiwan are the smartest countries in the world, with averae IQ scores of 106.5
  2. Which country has the highest average IQ?
    Japan and Taiwan have the highest average IQ as 106.5.
  3. Can my ancestry or heritage affect my IQ?
    Yes, since IQ is up to 80% inheritable so comes from a person's DNA.
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