2018 Best Private High Schools in Texas

Keystone School is one of the best private high schools and has been a haven for San Antonio’s bright and motivated children since 1948. Our diverse community of engaged learners in grades PK3-12 enjoys small classes, master teachers, and interdisciplinary instruction at our warm and historic campuses. Keystone’s scholars prepare for adulthood in a safe and inclusive environment, and consistently lead the nation in measures of academic excellence. Keystone offers financial aid to 100% of students in grades 6-12 with demonstrated financial need.