The highest IQ in the world (by country) is in Hong Kong (107.73). The lowest IQ in the world (by country) is in Somalia (83.84).

Today I Learned (TIL):

The highest IQ in the world (by country) is in Hong Kong (107.73).

The lowest IQ in the world (by country) is in Somalia (83.84).

Source: https://t.co/7AZhtZ2A8s

— Mark J. Perry (@Mark_J_Perry) July 25, 2026