The list is based on six components provided by school administrators: graduation rate (25 percent), college matriculation rate (25 percent), AP/IB/AICE tests taken per student (25 percent), average SAT/ACT scores (10 percent), average AP/IB/AICE scores (10 percent), and AP courses offered  per student(5 percent).

Additionally, two Missouri high schools, Metro Academy and Clayton, were among the top 20 in the Midwest.

[St. Louis Business Journal]