Average IQ by Country (World Map and Table)

What Is the Average IQ?

IQ tests are designed to assess cognitive abilities and estimate an individual’s level of intelligence. Although different IQ tests may vary in format and methodology, the average IQ score is standardized at 100.

For about two-thirds of people, IQ scores typically fall between 85 and 115, which represents the normal IQ range.

Average IQ and the Normal Distribution

The measurement of intelligence remains a debated topic in psychology and education. Researchers and psychologists have studied IQ differences across populations for decades. Some large cross-country IQ datasets were compiled by researchers such as Richard Lynn (National IQs calculated and validated for 108 nations), although these studies remain controversial and widely debated.

In this model:

• 100 represents the average IQ score
• A standard deviation of 15 points is considered typical
• 68% of people score between 85 and 115

This statistical model allows researchers to compare results across different populations and countries.

How We Measure IQ at WorldIQTest.com

WorldIQTest.com is an international IQ assessment platform that collects anonymized test results from participants around the world. The dataset used for this map includes over 758,000 completed IQ tests collected between 2023 and 2025.

Key features of the assessment system include:

• Each question contributes to the final IQ assessment
• The speed of decision-making influences the final IQ score
• Results are compared within the same age group to improve fairness and accuracy

All scores are normalized using the standard IQ scale with an average of 100 and a standard deviation of 15.

What Is the Average IQ in My Country?

The table below shows the estimated average IQ scores by country, calculated using test results from 758,000 participants worldwide between 2023 and 2025.

🌍 Average IQ by Country in table (2023-2025)

Average IQ by country 2024-2025

#	Country	Average IQ
1	South Korea	106.55
2	China	104.87
3	Japan	104.68
4	Hong Kong	104.04
5	Taiwan	103.87
6	Australia	103.84
7	Singapore	103.42
8	Bulgaria	103.36
9	Switzerland	102.88
10	Macao	102.75
11	Hungary	102.39
12	Austria	102.12
13	Italy	102.06
14	Netherlands	101.81
15	Israel	101.52
16	Belarus	101.42
17	Germany	101.39
18	Portugal	101.27
19	Azerbaijan	101.14
20	Belgium	101.03
21	Croatia	100.94
22	Slovenia	100.93
23	Iceland	100.79
24	Finland	100.66
25	Slovakia	100.61
26	Argentina	100.50
27	Luxembourg	100.37
28	Sweden	100.22
29	Bangladesh	100.09
30	Greece	100.08
31	Bosnia and Herzegovina	100.02
32	Malaysia	100.00
33	United Arab Emirates	99.87
34	Armenia	99.80
35	Brazil	99.74
36	Vietnam	99.66
37	Latvia	99.59
38	Madagascar	99.54
39	Jersey	99.52
40	Denmark	99.49
41	Canada	99.48
42	Cyprus	99.44
43	Serbia	99.44
44	Poland	99.42
45	Montenegro	99.33
46	Ireland	99.25
47	Thailand	99.22
48	Estonia	99.05
49	Ukraine	99.03
50	Czechia	98.97
51	Norway	98.88
52	Spain	98.86
53	Lithuania	98.77
54	Curaçao	98.66
55	Russia	98.65
56	Sri Lanka	98.64
57	Peru	98.60
58	Indonesia	98.59
59	France	98.58
60	Malta	98.54
61	United States	98.46
62	Nigeria	98.41
63	New Zealand	98.39
64	Myanmar	98.31
65	Bahrain	98.29
66	Lesotho	98.18
67	Mauritius	98.10
68	Yemen	98.08
69	Morocco	98.01
70	Romania	97.99
71	Papua New Guinea	97.98
72	Tunisia	97.96
73	Réunion	97.93
74	Palestine	97.89
75	India	97.85
76	Fiji	97.84
77	South Africa	97.84
78	Cameroon	97.78
79	Kenya	97.71
80	Senegal	97.70
81	Côte d'Ivoire	97.61
82	Isle of Man	97.60
83	United Kingdom	97.58
84	Kazakhstan	97.58
85	North Macedonia	97.53
86	Chile	97.51
87	Sudan	97.51
88	Suriname	97.43
89	Algeria	97.41
90	Cambodia	97.39
91	Egypt	97.32
92	Jordan	97.29
93	Libya	97.16
94	Philippines	97.14
95	Puerto Rico	97.11
96	Zimbabwe	97.06
97	Laos	97.05
98	Mongolia	97.03
99	Mexico	96.98
100	Syria	96.89
101	Tanzania	96.83
102	Turkey	96.75
103	Trinidad and Tobago	96.73
104	Georgia	96.69
105	Ecuador	96.68
106	Tajikistan	96.60
107	Uzbekistan	96.58
108	Barbados	96.52
109	Oman	96.45
110	Colombia	96.37
111	Ethiopia	96.34
112	Cuba	96.21
113	Qatar	96.21
114	Kyrgyzstan	96.20
115	DR Congo	96.14
116	Lebanon	96.13
117	Mozambique	96.10
118	Ghana	96.04
119	Moldova	96.01
120	Uganda	95.89
121	Malawi	95.87
122	Pakistan	95.76
123	Nepal	95.71
124	Venezuela	95.59
125	Uruguay	95.45
126	Iraq	95.38
127	Namibia	95.36
128	Zambia	95.21
129	Saudi Arabia	95.17
130	Guyana	95.09
131	Jamaica	94.93
132	Costa Rica	94.91
133	Guernsey	94.76
134	Rwanda	94.75
135	Kuwait	94.67
136	Iran	94.42
137	Mauritania	94.25
138	Guatemala	94.23
139	Turkmenistan	93.79
140	Kosovo	93.62
141	Dominican Republic	93.50
142	Paraguay	93.39
143	Panama	93.35
144	Nicaragua	93.31
145	El Salvador	93.22
146	Honduras	93.16
147	Maldives	92.64
148	Somalia	92.22
149	Andorra	90.65

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Average IQ by Country — Frequently Asked Questions

What country has the highest IQ?

According to the WorldIQTest.com database, South Korea has the highest average IQ (106.55).

What is the average IQ in the United States?

According to the WorldIQTest.com database, the average IQ in the United States is 98.84.

Why IQ Scores Differ Between Countries

Average IQ scores can vary between countries due to a combination of factors such as education quality, nutrition, healthcare access, and childhood development. Research from organizations such as the World Health Organization ("the annual losses in Nepal due to lead exposure-induced IQ losses among Nepalese children") and the Organisation for Economic Co-operation and Development highlights how health, nutrition, and education strongly influence cognitive development and learning outcomes.