>>1647278This is only true if you exclude the black belt.
Whenever you see a stat about how "red states have a lower IQ" or "red states vote against welfare but they receive the most welfare", the explanation is always that southern states have a disproportionately costly (in IQ or financial terms) black minority.
But yeah, northern rural states like MT, WY, NH, etc. have by far the highest IQs.