Average ACT: 33. The average ACT score composite at University of Chicago is a 33. The 25th percentile ACT score is 32, and the 75th percentile ACT score is 33. In other words, a 32 places you below average, while a 33 will move you up to above average. There's no absolute ACT requirement at University of Chicago, but they really want to see at least a 32 to have a chance at being considered.