St. Mark’s School of Texas
St. Mark’s School of Texas is an elite, one of the best private high schools, all-boys, Christian school located in Dallas, TX. It has 863 students in grades 1-12 with a student-teacher ratio of 8 to 1. Tuition is $29,496 for the highest grade offered. After graduation, 100% of students from this school go on to attend a 4-year college.