#38 Best Private High Schools in Virginia. Blue checkmark. Private School, RICHMOND, VA, PK, K-12. 154 Niche users give it an average review of 4.3 stars. Featured Review: Senior says Some of the best parts of my St.Catherine’s experience include the school culture, education, and extracurricular activities. The rigorous academic curriculum that is given to students of all ages is… Read 154 reviews. Overall Niche Grade: A+, Students: 955, Student-Teacher Ratio: 8 to 1,