Clarion Area High School  Clarion Area High School is a public junior and senior high school in Clarion, Pennsylvania. The school went through its last addition and renovation process in 1997, at which time, modern technology was added to the school's curriculum. Part-time vocational training is held at Clarion County Career Center, and 65% of students pursue one or more extra-curricular activities. Clarion Area participates in Pennsylvania Interscholastic Athletic Association District 9.