Charleston High School is a public high school in Charleston, Illinois, United States. It is among the few public high schools in Illinois to receive a distinguished GreatSchools Rating of 8 out of 10. Charleston High School serves grades 9-12 in the Charleston Cusd 1 district. The AP® participation rate at Charleston High School is 12 percent. The student body makeup is 51 percent male and 49 percent female, and the total minority enrollment is 6 percent. The total enrollment from the year 2011 was 809. There are also 50 full-time teachers on the staff of Charleston High School. The student teacher ratio is 16:1. They are rated from 0 (worst) to 100 (best) at 84. They did not meet the education standards for 2011. Charleston High School offers AP courses in nine subjects. They meet the im