| South Green Infant School115039 | Primary | Good | 15.1% | 172 |
| South Benfleet Primary School137029 | Primary | Good | 6.5% | 414 |
| Sir Martin Frobisher Academy143121 | Primary | Good | 70.2% | 171 |
| Sir Frederick Gibberd College143697 | Secondary | Requires Improvement | 29.0% | 880 |
| Silver End Academy144955 | Primary | Good | 22.1% | 344 |
| Shorefields School115471 | Not applicable | Outstanding | 59.2% | 177 |
| Shenfield St. Mary's Church of England Primary School139763 | Primary | Outstanding | 1.0% | 420 |
| Shenfield High School137877 | Secondary | Good | 19.7% | 1,528 |
| Sheering Church of England Voluntary Controlled Primary School115099 | Primary | Requires Improvement | 27.4% | 62 |
| Shalford Primary School142935 | Primary | Good | 23.3% | 73 |
| Saint Nicholas School115417 | Not applicable | — | — | 439 |
| Saffron Walden County High School136776 | Secondary | Outstanding | 10.3% | 2,157 |
| Ryedene Primary and Nursery School143127 | Primary | Good | 33.4% | 461 |
| Runwell Community Primary School137054 | Primary | Requires Improvement | 22.5% | 362 |
| Roydon Primary Academy139399 | Primary | Good | 24.9% | 173 |
| Roxwell Church of England Primary School147444 | Primary | Good | 17.1% | 82 |
| Roseacres Primary School141681 | Primary | Good | 15.5% | 194 |
| Rolph Church of England Primary School and Nursery140506 | Primary | Good | 15.0% | 231 |
| Rodings Primary School115266 | Primary | Good | 11.3% | 293 |
| Roding Valley High School145597 | Secondary | Good | 20.0% | 1,473 |
| Rochford Primary and Nursery School140747 | Primary | Good | 32.4% | 239 |
| Roach Vale Primary School114823 | Primary | Good | 41.2% | 177 |
| Riverside Primary School135903 | Primary | Good | 14.0% | 422 |
| Rivenhall Church of England Primary School146106 | Primary | Good | 18.8% | 128 |
| Ridgewell Church of England Primary School144645 | Primary | Needs attention | 32.7% | 55 |
| Rickling Church of England Voluntary Aided Primary School115130 | Primary | Good | 4.1% | 98 |
| Richard de Clare Community Academy143204 | Primary | Good | 32.1% | 370 |
| Rettendon Primary School151675 | Primary | Good | 15.3% | 98 |
| Rayne Primary and Nursery School145407 | Primary | Good | 13.1% | 213 |
| Rayleigh Primary School139543 | Primary | Good | 16.7% | 463 |
| Ravens Academy139641 | Primary | Good | 72.5% | 262 |
| Ramsden Hall Academy142612 | Not applicable | Good | 65.5% | 116 |
| Radwinter Church of England Voluntary Aided Primary School115191 | Primary | Good | 7.2% | 138 |
| R A Butler Junior School136328 | Primary | Outstanding | 11.7% | 384 |
| R A Butler Infant School136325 | Primary | Good | 9.2% | 271 |
| Quilters Junior School114801 | Primary | Outstanding | 4.6% | 262 |
| Quilters Infant School114884 | Primary | Outstanding | 4.4% | 181 |
| Queen Boudica Primary School135585 | Primary | Good | 16.6% | 408 |
| Purleigh Community Primary School140744 | Primary | Good | 9.7% | 206 |
| Purford Green Primary School139950 | Primary | Good | 25.1% | 229 |
| Priory Primary School, Bicknacre115000 | Primary | Needs attention | 15.0% | 153 |
| Prettygate Junior School114743 | Primary | Good | 16.0% | 250 |
| Prettygate Infant School114744 | Primary | Good | 12.7% | 172 |
| Potter Street Academy139802 | Primary | Good | 32.7% | 202 |
| Poplar Adolescent Unit135778 | Not applicable | Good | 0.0% | 0 |
| Plume School137790 | Secondary | Good | 25.8% | 1,789 |
| Philip Morant School and College146794 | Secondary | Good | 25.2% | 1,888 |
| Perryfields Junior School143784 | Primary | Outstanding | 9.6% | 301 |
| Perryfields Infant School145988 | Primary | Good | 3.3% | 180 |
| Pemberley Academy140380 | Primary | Good | 24.6% | 207 |