| Cam Woodfield Infant School115574 | Primary | Requires Improvement | 23.3% | 150 |
| Cam Woodfield Junior School145729 | Primary | Good | 29.3% | 205 |
| Carrant Brook Junior School150854 | Primary | Requires Improvement | 22.6% | 168 |
| Cashes Green Primary School115561 | Primary | Good | 28.6% | 210 |
| Castle Hill Primary School115569 | Primary | Good | 17.5% | 211 |
| Chalford Hill Primary School115509 | Primary | Requires Improvement | 6.6% | 196 |
| Charlton Kings Infants' School136999 | Primary | Good | 4.1% | 266 |
| Charlton Kings Junior School137266 | Primary | Good | 4.8% | 376 |
| Cheltenham Bournside School and Sixth Form Centre136725 | Secondary | Good | 21.2% | 1,862 |
| Cheltenham College115795 | Not applicable | — | — | 1,178 |
| Cheltenham Ladies' College115798 | Not applicable | — | — | 833 |
| Chesterton Primary School146326 | Primary | Good | 25.7% | 201 |
| Chipping Campden School136960 | Secondary | Good | 16.9% | 1,479 |
| Chosen Hill School136623 | Secondary | Good | 17.3% | 1,292 |
| Christ Church CofE Primary School138940 | Primary | Outstanding | 18.0% | 217 |
| Churcham Primary School115510 | Primary | Good | 26.1% | 46 |
| Churchdown Parton Manor Infant School115511 | Primary | Good | 12.7% | 166 |
| Churchdown Parton Manor Junior School115564 | Primary | Good | 23.0% | 222 |
| Churchdown School137634 | Secondary | Good | 15.6% | 1,447 |
| Churchdown Village Infant School137173 | Primary | Good | 6.4% | 189 |
| Churchdown Village Junior School115512 | Primary | Good | 9.1% | 231 |
| Cirencester College130686 | 16 plus | — | — | — |
| Cirencester Deer Park School136527 | Secondary | Good | 15.3% | 1,017 |
| Cirencester Kingshill School137217 | Secondary | Good | 18.1% | 806 |
| Cirencester Primary School135985 | Primary | Good | 36.7% | 316 |
| Clearwater Church of England Primary Academy143712 | Primary | Good | 8.8% | 307 |
| Clearwell Church of England Primary School115638 | Primary | Good | 23.8% | 42 |
| Cleeve School136772 | Secondary | Good | 18.8% | 1,848 |
| Coaley Church of England Primary Academy145408 | Primary | Good | 11.4% | 79 |
| Coalway Community Infant School115551 | Primary | Requires Improvement | 16.7% | 96 |
| Coalway Junior School115550 | Primary | Good | 30.3% | 211 |
| Coberley Church of England Primary School115617 | Primary | Good | 2.8% | 71 |
| Cold Aston Church of England Primary School149254 | Primary | Good | 1.8% | 55 |
| Coney Hill Community Primary School115603 | Primary | Good | 30.6% | 209 |
| Coopers Edge School136074 | Primary | Good | 16.7% | 408 |
| Cotswold Chine School115802 | Not applicable | — | — | 53 |
| Cranham Church of England Primary School115682 | Primary | Good | 9.3% | 54 |
| Dean Close Airthrie115799 | Not applicable | — | — | 56 |
| Dean Close Preparatory School115796 | Not applicable | — | — | 446 |
| Dean Close School115797 | Not applicable | — | — | 499 |
| Dean Close St John's115785 | Not applicable | — | — | 129 |
| Deerhurst and Apperley Church of England Primary School115619 | Primary | Outstanding | 8.9% | 79 |
| Dene Magna School137387 | Secondary | Good | 21.0% | 1,006 |
| Denmark Road High School136666 | Secondary | Good | 5.4% | 1,013 |
| Dinglewell Infant School115499 | Primary | Good | 6.3% | 252 |
| Dinglewell Junior School115495 | Primary | Good | 10.9% | 359 |
| Down Ampney Church of England Primary School151271 | Primary | Good | 5.2% | 58 |
| Drybrook Primary School147895 | Primary | Requires Improvement | 30.4% | 138 |
| Dunalley Primary School115582 | Primary | Good | 12.1% | 420 |
| Dursley Church of England Primary Academy139337 | Primary | Good | 17.3% | 256 |