Education

2018 Best Private High Schools in Texas

Updated February 21, 2026By DreBoam

3. Greenhill School

Greenhill School is an elite, private school located in Addison, TX. It has 1,290 students in grades PK, K-12 with a student-teacher ratio of 8 to 1. Tuition is $30,750 for the highest grade offered. After graduation, 100% of students from this school go on to attend a 4-year college.