Average Iq By State 2024 By State. The average iq of countries around the world can range, from indiana at 76.24 to china at 104.10. The united states ranks 30th in global average iq, with state averages varying from 104.3 in massachusetts to 94.2 in mississippi.

The groundbreaking study found that the average american adult’s iq score had increased by 13.8 iq points in the cited period, translating to an average of roughly three points per decade. States by their average iq, seen here on a map created by newsweek.