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World IQ ranking

Average IQ by country: ranking, scores and context

Compare country IQ score estimates in one table, then read the ranking with the right context: methodology, education, sample quality, and test design all matter.

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Average IQ map by country

What the ranking shows

The table lists country-level average IQ estimates and rank positions so readers can scan the global distribution quickly.

How to read it

Country averages are not personal scores. They should be treated as broad statistical estimates, not as a measure of any individual person.

What affects results

Testing language, schooling, nutrition, health, sample selection, and data age can all affect country-level IQ comparisons.

IQ ranking by country

Open a country page to see its rank, score, and a short country-specific summary.

Convert IQ to percentile
Rank Country Average IQ Details
1 Hong Kong 107 Country IQ page
2 South Korea 106 Country IQ page
3 Japan 105 Country IQ page
4 Taiwan 104 Country IQ page
5 Singapore 103 Country IQ page
6 Austria 102 Country IQ page
7 Germany 102 Country IQ page
8 Italy 102 Country IQ page
9 Netherlands 102 Country IQ page
10 Sweden 101 Country IQ page
11 Switzerland 101 Country IQ page
12 Luxembourg 101 Country IQ page
13 Belgium 100 Country IQ page
14 UK 100 Country IQ page
15 China 100 Country IQ page
16 New Zealand 100 Country IQ page
17 Hungary 99 Country IQ page
18 Poland 99 Country IQ page
19 Estonia 99 Country IQ page
20 USA 98 Country IQ page
21 Denmark 98 Country IQ page
22 France 98 Country IQ page
23 Norway 98 Country IQ page
24 Latvia 98 Country IQ page
25 Australia 98 Country IQ page
26 Canada 97 Country IQ page
27 Ukraine 97 Country IQ page
28 Lithuania 97 Country IQ page
29 Belarus 97 Country IQ page
30 Czech Republic 97 Country IQ page
31 Finland 97 Country IQ page
32 Spain 97 Country IQ page
33 Russia 96 Country IQ page
34 Moldova 96 Country IQ page
35 Slovakia 96 Country IQ page
36 Argentina 96 Country IQ page
37 Uruguay 96 Country IQ page
38 Portugal 95 Country IQ page
39 Slovenia 95 Country IQ page
40 Malta 95 Country IQ page
41 Romania 94 Country IQ page
42 Bulgaria 94 Country IQ page
43 Israel 94 Country IQ page
44 Ireland 93 Country IQ page
45 Greece 93 Country IQ page
46 Armenia 93 Country IQ page
47 Kazakhstan 93 Country IQ page
48 Croatia 92 Country IQ page
49 Cyprus 92 Country IQ page
50 Malaysia 92 Country IQ page
51 Thailand 91 Country IQ page
52 Costa Rica 91 Country IQ page
53 Turkey 90 Country IQ page
54 Peru 90 Country IQ page
55 Suriname 89 Country IQ page
56 Indonesia 89 Country IQ page
57 Cambodia 89 Country IQ page
58 Colombia 89 Country IQ page
59 Laos 89 Country IQ page
60 Venezuela 88 Country IQ page
61 Brazil 87 Country IQ page
62 Mexico 87 Country IQ page
63 Azerbaijan 87 Country IQ page
64 Tajikistan 87 Country IQ page
65 Turkmenistan 87 Country IQ page
66 Tonga 87 Country IQ page
67 Uzbekistan 87 Country IQ page
68 Kyrgyz Republic 87 Country IQ page
69 Iraq 87 Country IQ page
70 Philippines 86 Country IQ page
71 Bolivia 85 Country IQ page
72 Paraguay 85 Country IQ page
73 Cuba 85 Country IQ page
74 Morocco 85 Country IQ page
75 Iran 84 Country IQ page
76 Fiji 84 Country IQ page
77 Puerto Rica 84 Country IQ page
78 Panama 84 Country IQ page
79 84 Country IQ page
80 Honduras 84 Country IQ page
81 El Salvador 84 Country IQ page
82 Algeria 84 Country IQ page
83 Libya 84 Country IQ page
84 Tunisia 84 Country IQ page
85 Afghanistan 83 Country IQ page
86 Saudi Arabia 83 Country IQ page
87 Egypt 83 Country IQ page
88 India 81 Country IQ page
89 Ecuador 80 Country IQ page
90 Guatemala 79 Country IQ page
91 Zambia 77 Country IQ page
92 Congo 73 Country IQ page
93 Uganda 73 Country IQ page
94 Jamaica 72 Country IQ page
95 South Africa 72 Country IQ page
96 Kenya 72 Country IQ page
97 Tanzania 72 Country IQ page
98 Sudan 72 Country IQ page
99 Ghana 67 Country IQ page
100 Nigeria 67 Country IQ page

Important context for country IQ rankings

Average IQ by country pages are useful for search and comparison, but the numbers should never be treated as a complete explanation of national outcomes or individual ability.

A responsible interpretation looks at measurement quality, the date of the data, access to education, health conditions, and whether the tests were adapted fairly for language and culture.

For personal interpretation, use an individual IQ score, its percentile, the test norms, and the broader cognitive profile rather than a country average.

Average IQ by country FAQ

No. A country IQ ranking is a country-level statistical estimate. It should not be used to describe the intelligence of any individual person.

Different sources can use different datasets, test years, samples, adjustments, and country coverage. Small differences in method can change the final ranking.

Yes. Country-level estimates can change when education, health, nutrition, testing access, migration, and available data change over time.

Cross-cultural comparisons require caution. Language, schooling, test familiarity, motivation, and test adaptation can all influence measured performance.

Use it as broad background context, not as a judgment. A responsible reading looks at data quality, uncertainty, social conditions, and measurement limits.

No single metric explains national outcomes. Economic history, institutions, education, health, geography, policy, and many other factors matter.
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