Do states with higher IQ’s have less crime?
Previous research suggests that crime is negatively associated with IQ at the individual level and the aggregate state level. The purpose of the present study was to further explore the relationship between state IQ estimates and various categories of violent and property crimes. State demographic information including the gross state product, pupil/teacher ratio, and percent Black, Asian, and Hispanic were included in the correlational analyses. State IQ was significantly and negatively correlated with the violent crimes of murder, aggravated assault and robbery as well as the property crimes of motor vehicle theft, theft and burglary. Additionally, regression analyses were conducted for each crime significantly related to state IQ, controlling for significant state demographic variables. In general, results suggest that the prevalence of both violent and property crimes is associated with lower state IQs.
Source: “Correlations between estimates of state IQ and FBI crime statistics” from Personality and Individual Differences, Volume 48, Issue 5, April 2010, Pages 579-583
A quick search leads me to these as some recent (estimated) IQ scores for each state.