CACSD: Coxsackie-Athens Central School District
CAHS: Coahoma Agricultural High School
CAPS: Cadillac Area Public Schools
CAS: Cheboygan Area Schools
CASD: California Area School District
CASD: Canton Area School District
CASD: Carbondale Area School District
CASD: Carlisle Area School District
CASD: Carmichaels Area School District
CASD: Catasauqua Area School District
CASD: Center Area School District
CASD: Chambersburg Area School District
CASD: Chester Area School District
CASD: Clarion Area School District
CASD: Clearfield Area School District
CASD: Coatesville Area School District
CASD: Connellsville Area School District
CASD: Corry Area School District
CASD: Curwensville Area School District
CBISD: Columbia-Brazoria Independent School District
CBPS: Colonial Beach Public Schools
CBRSD: Central Berkshire Regional School District
CBSD: Central Bucks School District
CBSD: Columbia Borough School District
CBSD: Coos Bay School District
CBSED: Covered Bridge Special Education District
CBSS: City of Baker School System
CCAISD: Culberson County-Allamoore Independent School District
CCCCSD: Crockett County Consolidated Common School District
CCCOE: Contra Costa County Office of Education
CCCS: Crawford County Community Schools
CCCSD: Churchville-Chili Central School District
CCD: Community Consolidated District
CCHS: Crossroads Charter High School
CCISD: Calhoun County Independent School District
CCISD: Clear Creek Independent School District
CCISD: Clyde Consolidated Independent School District
CCISD: Copper Country Intermediate School District
CCISD: Copperas Cove Independent School District
CCISD: Corpus Christi Independent School District