Pennsylvania Schools
- Clarion Area High School
- Clarion Area School District
- Clarion County Career Center
- Clarion Limestone Area School District
- Clarion Limestone Jr Sr High School
- Clarks Summit University
- Claysburg Kimmel School District
- Clearfield Alliance Christian School
- Clearfield Area High School
- Clearfield Area School District
- Clifford B Connelly Trade School
- Coatesville Area High School
- Coatesville Area School District
- Cocalico School District
- Cocalico Senior High School
- Colfax Elementary School
- College Opportunity Resources For Education
- Colonial School District
- Columbia Borough School District
- Columbia Montour Area Vocational Technical School
- Commodore Perry School District
- Commonwealth Connections Academy Charter School
- Commonwealth University Of Pennsylvania
- Commonwealth University Mansfield
- Community College Of Allegheny County
- Community College Of Beaver County
- Community College Of Philadelphia
- Conemaugh Township Area Middle Senior High School
- Conemaugh Township Area School District
- Conemaugh Valley School District
- Conestoga Christian School
- Conestoga High School
- Conestoga Valley High School
- Conestoga Valley School District
- Conewago Valley School District
- Conneaut Area Senior High School
- Conneaut Lake High School
- Conneaut School District
- Connellsville Area Career And Technology Center
- Connellsville Area School District
- Connellsville Area Senior High School
- Conrad Weiser Area School District
- Conrad Weiser High School
- Conroy Education Center
- Constitution High School
- Conwell Middle Magnet School
- Conwell Egan Catholic High School
- Cornell High School
- Cornell School District
- Cornwall Lebanon School District
- Corry Area School District
- Cotton And Maple Streets School
- Coudersport Area Junior Senior High School
- Coudersport Area School District
- Council Rock High School North
- Council Rock High School South
- Council Rock School District
- Country Day School Of The Sacred Heart
- Covenant Christian Academy
- Coventry Christian Schools
- Cowanesque Valley Junior Senior High School
- Cranberry Area School District
- Crawford Central School District
- Crestwood High School
- Crestwood School District
- Cristo Rey Philadelphia High School
- Crozer Theological Seminary
- Cumberland Valley High School
- Cumberland Valley School District
- Curtis Institute Of Music
- Curwensville Area Junior Senior High School
- Curwensville Area School District
- D Newlin Fell School
- D H H Lengel Middle School
- Dallas High School
- Dallas School District
- Dallastown Area High School
- Dallastown Area Middle School
- Dallastown Area School District
- Daniel Boone Area High School
- Daniel Boone Area School District
- Daniel Boone School
- Danville Area School District
- Danville High School
- Darlington Seminary
- David Landreth School
- David Rittenhouse Junior High School
- Dayspring Christian Academy
- Desales University
- Deer Lakes School District
- Delaplaine Mcdaniel School
- Delaware County Christian School
- Delaware County Community College
- Delaware Valley Friends School
- Delaware Valley High School
- Delaware Valley High School
- Delaware Valley School District
- Delaware Valley University
- Delcroft School
- Delone Catholic High School