6. North Dakota, Virginia, and South Dakota
Average SAT Score: 1099
6th place on our list are occupying three states with the same average SAT score of 1099, but their IQ averages differ a bit. North Dakota is the most intelligent with the IQ average of 103.8, the second one is South Dakota with 102.8, and the least intelligent among these three is Vrigina with the average IQ score of 101.9.