Highest Iq Country In The World 2025. This report explores the countries with the highest average iqs in 2025, highlighting japan as the leader with an average score of 106.48. Dive into the comprehensive 2025 rankings of the world's smartest countries, based on rigorous analysis of average iq scores.

See how nations compare on global intelligence metrics. Japan has the world’s highest iq with an average of 106.48.