| Connoquenessing Valley El Sch | 714 | regular | elementary |
| CONNOR ACADEMY | 534 | regular | other |
| Connor Consolidated School | 26 | regular | other |
| Connor Shaw Center | 79 | regular | other |
| Conotton Valley Elementary | 291 | regular | other |
| Conotton Valley High School | 226 | regular | other |
| Conover Road Elementary School | 322 | regular | elementary |
| Conover Road Primary School | 366 | regular | other |
| Conover Special Education | 107 | special-ed | other |
| Conowingo Elementary | 379 | regular | other |
| Conrad Ball Middle School | 536 | regular | middle |
| Conrad Early Learning Center | 228 | regular | other |
| Conrad Elvehjem Primary School | 449 | regular | other |
| Conrad Fischer Elem School | 584 | regular | elementary |
| Conrad High School | 126 | regular | high |
| Conrad Schools of Science | 1,164 | regular | other |
| Conrad Weiser East El Sch | 449 | regular | elementary |
| Conrad Weiser HS | 848 | regular | high |
| Conrad Weiser MS | 761 | regular | elementary |
| Conrad Weiser West El Sch | 415 | regular | elementary |
| CONROE H S | 5,252 | regular | high |
| CONROE VIRTUAL SCHOOL | 211 | regular | elementary |
| CONSELYEA PREPARATORY SCHOOL | 366 | regular | middle |
| Consentino Middle School | 805 | regular | elementary |
| Conservatory Lab Charter School | 454 | regular | other |
| Conservatory of the Arts | 296 | regular | other |
| Conshohocken El Sch | 247 | regular | elementary |
| Consolidated Community School Services | 59 | alternative | other |
| Consolidated Elementary | 82 | regular | elementary |
| Consolidated School | 483 | regular | other |
| Constable Elementary School | 476 | regular | elementary |
| CONSTANCE HULBERT EL | 266 | regular | other |
| Constance Lane Elementary School | 623 | regular | elementary |
| Constantine Alternative Education | 104 | alternative | other |
| Constantine High School | 348 | regular | high |
| Constantine Middle School | 309 | regular | middle |
| Constellation Schools: Eastside Arts Academy | 153 | regular | elementary |
| Constellation Schools: Elyria Community | 409 | regular | elementary |
| Constellation Schools: Lorain Community Elementary | 89 | regular | elementary |
| Constellation Schools: Lorain Community Middle | 102 | regular | elementary |
| Constellation Schools: Madison Community Elementary | 197 | regular | elementary |
| Constellation Schools: Old Brooklyn Community Elementary | 360 | regular | elementary |
| Constellation Schools: Old Brooklyn Community Middle | 265 | regular | elementary |
| Constellation Schools: Parma Community | 1,259 | regular | other |
| Constellation Schools: Puritas Community Elementary | 119 | regular | elementary |
| Constellation Schools: Puritas Community Middle | 97 | regular | elementary |
| Constellation Schools: Stockyard Community Elementary | 125 | regular | elementary |
| Constellation Schools: Stockyard Community Middle | 35 | regular | middle |
| Constellation Schools: Westpark Community Elementary | 211 | regular | elementary |
| Constellation Schools: Westpark Community Middle | 170 | regular | elementary |