IQ TOP 10 HIGHEST & TOP 10 LOWEST

Top 10 Countries by Average IQ (Highest)

Top Countries by Average IQ

Hong Kong: 107.73 (Asia)
South Korea: 106.97 (Asia)
China: 106.48 (Asia)
Japan: 106.30 (Asia)
Iran: 104.80 (Asia)
Australia: 104.45
Russia: 103.78 (Asia)
Singapore: 103.56 (Asia)
Mongolia: 102.61 (Asia)
New Zealand: 102.35 

 

LThe lowest-ranked countries by average estimated score in recent 2026 data compilations include:

Botswana — 89.72  (Africa)
Tanzania — 89.57 (Africa)
Afghanistan — 89.31 (South/Central Asia)
Democratic Republic of the Congo — 88.60 (Africa)
Uganda — 88.4 (Africa)
Gabon — 88.35 (Africa)
Angola — 87.89 (Africa)
Rwanda — 86.90 (Africa)
Timor-Leste — 86.70 (Southeast Asia)
Somalia — 83.84 (Africa)