Cardinal O Hara High School is located in Tonawanda, NY. It is a private school that serves 242 students in grades 9-12. Cardinal O Hara High School is coed (school has male and female students) and is Roman Catholic in orientation. The school belongs to the National Catholic Educational Association.
In 2010, Cardinal O Hara High School had 9 students for every full-time equivalent teacher. The New York average is 13 students per full-time equivalent teacher.