| Cam Woodfield Infant School115574 | Primary | Requires Improvement | 26.5% | 136 |
| Cam Woodfield Junior School145729 | Primary | Good | 30.2% | 192 |
| Carrant Brook Junior School150854 | Primary | Requires Improvement | 18.8% | 138 |
| Cashes Green Primary School115561 | Primary | Good | 27.4% | 212 |
| Castle Hill Primary School115569 | Primary | Good | 23.7% | 211 |
| Chalford Hill Primary School115509 | Primary | Expected standard | 6.2% | 195 |
| Charlton Kings Infants' School136999 | Primary | Good | 4.0% | 311 |
| Charlton Kings Junior School137266 | Primary | Good | 5.8% | 381 |
| Cheltenham Bournside School and Sixth Form Centre136725 | Secondary | Good | 23.7% | 1,846 |
| Cheltenham College115795 | Not applicable | — | — | 1,134 |
| Cheltenham Ladies' College115798 | Not applicable | — | — | 814 |
| Chesterton Primary School146326 | Primary | Good | 26.0% | 187 |
| Chipping Campden School136960 | Secondary | Good | 19.5% | 1,465 |
| Chosen Hill School136623 | Secondary | Good | 17.7% | 1,295 |
| Christ Church CofE Primary School138940 | Primary | Outstanding | 15.0% | 213 |
| Churcham Primary School115510 | Primary | Good | 37.5% | 32 |
| Churchdown Parton Manor Infant School115511 | Primary | Good | 13.7% | 190 |
| Churchdown Parton Manor Junior School115564 | Primary | Good | 17.9% | 229 |
| Churchdown School137634 | Secondary | Expected standard | 18.0% | 1,430 |
| Churchdown Village Infant School137173 | Primary | Good | 7.1% | 187 |
| Churchdown Village Junior School115512 | Primary | Good | 10.9% | 238 |
| Cirencester College130686 | 16 plus | — | — | — |
| Cirencester Deer Park School136527 | Secondary | Good | 16.2% | 1,020 |
| Cirencester Kingshill School137217 | Secondary | Good | 19.9% | 806 |
| Cirencester Primary School135985 | Primary | Good | 32.4% | 336 |
| Clearwater Church of England Primary Academy143712 | Primary | Good | 7.5% | 332 |
| Clearwell Church of England Primary School115638 | Primary | Good | 36.6% | 41 |
| Cleeve School136772 | Secondary | Good | 21.3% | 1,903 |
| Coaley Church of England Primary Academy145408 | Primary | Good | 14.0% | 86 |
| Coalway Primary School115550 | Primary | Good | 32.6% | 193 |
| Coberley Church of England Primary School115617 | Primary | Good | 5.4% | 74 |
| Cold Aston Church of England Primary School149254 | Primary | Good | 4.1% | 74 |
| Coney Hill Community Primary School115603 | Primary | Good | 30.3% | 241 |
| Coopers Edge School136074 | Primary | Good | 18.4% | 403 |
| Cotswold Chine School115802 | Not applicable | — | — | 52 |
| Cranham Church of England Primary School115682 | Primary | Good | 8.8% | 57 |
| Dean Close Airthrie115799 | Not applicable | — | — | 52 |
| Dean Close Preparatory School115796 | Not applicable | — | — | 436 |
| Dean Close School115797 | Not applicable | — | — | 488 |
| Dean Close St John's115785 | Not applicable | — | — | 114 |
| Deerhurst and Apperley Church of England Primary School115619 | Primary | Outstanding | 9.2% | 87 |
| Dene Magna and Sixth Form137387 | Secondary | Good | 21.6% | 1,020 |
| Denmark Road High School136666 | Secondary | Strong standard | 6.3% | 1,024 |
| Dinglewell Infant School115499 | Primary | Good | 4.9% | 226 |
| Dinglewell Junior School115495 | Primary | Good | 10.9% | 359 |
| Down Ampney Church of England Primary School151271 | Primary | Good | 3.4% | 59 |
| Drybrook Primary School147895 | Primary | Requires Improvement | 34.1% | 147 |
| Dunalley Primary School115582 | Primary | Good | 12.3% | 456 |
| Dursley Church of England Primary Academy139337 | Primary | Good | 23.7% | 241 |
| Eastcombe Primary School115504 | Primary | Good | 18.4% | 49 |