World IQ Map · country report
Average IQ in South Africa
494 people in South Africa took the same 20-question IQ test as everyone else on the map. South Africa ranks #18 of 53 countries.
103.4relative score
#18of 53
494people tested
+3.4vs world average (100)
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Where South Africa sits
9095100 avg105110115120
#17
France103.7
#18
South Africa103.4
#19South Africa103.4
Bangladesh103.3
South Africa is one of 27 countries in a same-language check of these scores against school results and income — see the method page.
100 is the average score of everyone who has taken the test since 2026-07-15, and 15 points is one standard deviation. People choose to take the test online, so this shows how South Africa's test-takers scored — it is not an official national measurement.
Where do you rank in South Africa?
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