World ranking of countries by their average IQ

Which country has the highest IQ? What is the average IQ of your country? Here is the average IQ of more than 80 countries.

These numbers came from a work carried out from 2002 to 2006 by Richard Lynn, a British Professor of Psychology, and Tatu Vanhanen, a Finnish Professor of Political Science, who conducted IQ studies in more than 80 countries.

Richard and Tatu argues that differences in national income are correlated with differences in the average national intelligence quotient (IQ). They further argue that differences in average national IQs constitute one important factor, but not the only one, contributing to differences in national wealth and rates of economic growth.

These results are controversial and have caused much debate, they must be interpreted with extreme caution.

Average national IQs according to IQ and Global Inequality (2002)
RankCountryIQ
1
Hong Kong
108
1
Singapore
108
2
South Korea
106
3
Japan
105
3
China
105
4
Taiwan
104
5
Italy
102
6
Iceland
101
6
Mongolia
101
6
Switzerland
101
7
Austria
100
7
Luxembourg
100
7
Netherlands
100
7
Norway
100
7
United Kingdom
100
8
Belgium
99
8
Canada
99
8
Estonia
99
8
Finland
99
8
Germany
99
8
Poland
99
8
Sweden
99
9
Andorra
98
9
Australia
98
9
Czech Republic
98
9
Denmark
98
9
France
98
9
Hungary
98
9
Latvia
98
9
Spain
98
9
United States
98
10
Belarus
97
10
Malta
97
10
Russia
97
10
Ukraine
97
11
Moldova
96
11
Slovakia
96
11
Slovenia
96
11
Uruguay
96
12
Israel
95
12
Portugal
95
13
Armenia
94
13
Georgia
94
13
Kazakhstan
94
13
Romania
94
13
Vietnam
94
14
Argentina
93
14
Bulgaria
93
15
Greece
92
15
Ireland
92
15
Malaysia
92
16
Brunei
91
16
Cambodia
91
16
Cyprus
91
16
Former Yugoslav Republic of Macedonia
91
16
Lithuania
91
16
Sierra Leone
91
16
Thailand
91
17
Albania
90
17
Bosnia and Herzegovina
90
17
Chile
90
17
Croatia
90
17
Kyrgyzstan
90
17
Turkey
90
18
Costa Rica
89
18
Laos
89
18
Mauritius
89
18
Serbia
89
18
Suriname
89
19
Ecuador
88
19
Mexico
88
19
Samoa
88
20
Azerbaijan
87
20
Bolivia
87
20
Nauru
87
20
Guyana
87
20
Indonesia
87
20
Iraq
87
20
Myanmar
87
20
Tajikistan
87
20
Turkmenistan
87
20
Uzbekistan
87
21
Kuwait
86
21
Philippines
86
21
Seychelles
86
21
Tonga
86
22
Cuba
85
22
Eritrea
85
22
Fiji
85
22
Kiribati
85
22
Peru
85
22
Trinidad and Tobago
85
22
Yemen
85
23
Afghanistan
84
23
The Bahamas
84
23
Belize
84
23
Colombia
84
23
Iran
84
23
Jordan
84
23
Marshall Islands
84
23
Micronesia
84
23
Morocco
84
23
Nigeria
84
23
Pakistan
84
23
Panama
84
23
Paraguay
84
23
Saudi Arabia
84
23
Solomon Islands
84
23
Uganda
84
23
United Arab Emirates
84
23
Vanuatu
84
23
Venezuela
84
24
Algeria
83
24
Bahrain
83
24
Libya
83
24
Oman
83
24
Papua New Guinea
83
24
Syria
83
24
Tunisia
83
25
Bangladesh
82
25
Dominican Republic
82
25
India
82
25
Lebanon
82
25
Madagascar
82
25
Zimbabwe
82
26
Egypt
81
26
Honduras
81
26
Maldives
81
26
Nicaragua
81
27
Barbados
80
27
Bhutan
80
27
El Salvador
80
27
Kenya
80
28
Guatemala
79
28
Sri Lanka
79
28
Zambia
79
29
Democratic Republic of the Congo
78
29
Nepal
78
29
Qatar
78
30
Comoros
77
30
South Africa
77
31
Cape Verde
76
31
Congo
76
31
Mauritania
76
31
Senegal
76
32
Mali
74
32
Namibia
74
33
Ghana
73
34
Tanzania
72
35
Central African Republic
71
35
Jamaica
71
35
Saint Vincent and the Grenadines
71
35
Sudan
71
36
Antigua and Barbuda
70
36
Benin
70
36
Botswana
70
36
Rwanda
70
36
Togo
70
37
Burundi
69
37
Côte d'Ivoire
69
37
Ethiopia
69
37
Malawi
69
37
Niger
69
38
Angola
68
38
Burkina Faso
68
38
Chad
68
38
Djibouti
68
38
Somalia
68
38
Swaziland
68
39
Dominica
67
39
Guinea
67
39
Guinea-Bissau
67
39
Haiti
67
39
Lesotho
67
39
Liberia
67
39
Saint Kitts and Nevis
67
39
São Tomé and Príncipe
67
40
The Gambia
66
41
Cameroon
64
41
Gabon
64
41
Mozambique
64
42
Saint Lucia
62
43
Equatorial Guinea
59