State school

Chaparral High School Chaparral High School Charles F. Brush High School Charles Herbert Flowers High School Charleston High School Charter Oak High School Charters Towers State High School Chatsworth High School Chesapeake High School Chesapeake High School Chico Senior High School Chillicothe High School Chino High School Chino Hills High School Chino Valley High School Chippewa High School Cholla High Magnet School Christchurch Boys' High School Christchurch East School Christchurch Girls' High School Christchurch South Intermediate Chula Vista High School Churchill Park School Citrus High School Citrus Hill High School City Honors High School Claremont High School Clark Magnet High School Clark Montessori High School Clarksville High School Clay High School Clay High School Claymont High School Clayton Valley Charter High School Clear Fork High School Clermont Northeastern High School Cleveland Heights High School Cleveland School of the Arts Clint Junior High School Clinton–Massie High School Clinton High School Cloverleaf High School Clovis East High School Clovis High School Clovis North Educational Center Clovis West High School Clyde High School Coastal Taranaki School Cockle Bay School Coconino High School