Thornton High School is located in Thornton, CO and is one of 8 high schools in Northglenn-thornton School District No. 12 In The County O. It is a public school that serves 1762 students in grades 9-12. See Thornton High School's test results
to learn more about school performance.
In 2011, Thornton High School had 18 students for every full-time equivalent teacher. The Colorado average is 17 students per full-time equivalent teacher.