| The Wickford Church of England School137744 | Primary | Outstanding | 8.1% | 140 |
| The Willows Primary School143206 | Primary | Good | 27.6% | 651 |
| The Yellow House School134398 | Not applicable | — | — | 16 |
| Theydon Bois Primary School145999 | Primary | Good | 4.7% | 318 |
| Thomas Willingale Primary School and Nursery115309 | Primary | Good | 29.2% | 487 |
| Thriftwood School137554 | Not applicable | Outstanding | 49.5% | 266 |
| Thundersley Primary School141626 | Primary | Good | 10.5% | 456 |
| Thurstable School137241 | Secondary | Good | 17.1% | 1,031 |
| Tiptree Heath Primary School147560 | Primary | Good | 9.1% | 208 |
| Tollesbury School114925 | Primary | Good | 14.7% | 163 |
| Tolleshunt D'Arcy St Nicholas Primary Academy147403 | Primary | Good | 10.8% | 111 |
| Trinity Road Primary School114805 | Primary | Good | 24.6% | 402 |
| Trinity St Mary's CofE Voluntary Aided Primary School, South Woodham Ferrers115200 | Primary | Good | 16.6% | 157 |
| Unity Primary Academy141113 | Primary | Good | 48.3% | 449 |
| University of Essex133805 | Not applicable | — | — | — |
| Upshire Primary Foundation School115310 | Primary | Requires Improvement | 28.8% | 205 |
| Ursuline Preparatory School115428 | Not applicable | — | — | 169 |
| Usp College130681 | 16 plus | — | — | — |
| Vange Primary School and Nursery114811 | Primary | Good | 35.7% | 111 |
| Waltham Holy Cross Primary Academy147265 | Primary | Good | 27.8% | 594 |
| Walton on the Naze Primary School115300 | Primary | Good | 55.1% | 199 |
| Warley Primary School115042 | Primary | Good | 12.6% | 390 |
| Water Lane Primary Academy141194 | Primary | Good | 31.5% | 184 |
| Waterman Primary School141715 | Primary | Requires Improvement | 60.5% | 53 |
| Weeley St Andrew's CofE Primary School140181 | Primary | Good | 34.9% | 209 |
| Wells Park School148708 | Not applicable | Outstanding | 59.3% | 59 |
| Wentworth Primary School114933 | Primary | Good | 14.4% | 440 |
| West Hatch High School136758 | Secondary | Good | 13.6% | 1,564 |
| West Horndon Primary School114921 | Primary | Good | 11.0% | 173 |
| Westlands Community Primary School115027 | Primary | Good | 24.8% | 580 |
| Westwood Academy137030 | Primary | Outstanding | 9.8% | 249 |
| Wethersfield CofE VC Primary School115110 | Primary | Good | 10.9% | 46 |
| White Bridge Primary School145603 | Primary | Good | 16.5% | 429 |
| White Court School114988 | Primary | Good | 15.7% | 567 |
| White Hall Academy and Nursery138575 | Primary | Good | 47.4% | 673 |
| White Notley Church of England Voluntary Controlled Primary School115111 | Primary | Good | 1.9% | 105 |
| Whitmore Primary School and Nursery143126 | Primary | Good | 37.7% | 650 |
| Wickford Primary School114813 | Primary | Good | 20.6% | 509 |
| Widford Lodge School115391 | Not applicable | — | — | 206 |
| William de Ferrers School136605 | Secondary | Requires Improvement | 14.1% | 1,247 |
| William Martin Church of England Infant and Nursery School145602 | Primary | Good | 24.2% | 191 |
| William Martin Church of England Junior School145726 | Primary | Good | 35.1% | 245 |
| William Read Primary Academy149253 | Primary | Good | 30.8% | 198 |
| Willow Brook Primary School and Nursery141195 | Primary | Good | 38.5% | 180 |
| Willowbrook Primary School115041 | Primary | Good | 21.5% | 209 |
| Wimbish Primary Academy150061 | Primary | Good | 23.3% | 30 |
| Winter Gardens Academy142000 | Primary | Good | 36.7% | 417 |
| Witham Oaks Academy139871 | Primary | Good | 30.7% | 274 |
| Wix and Wrabness Primary School114739 | Primary | Good | 14.4% | 118 |
| Woodcroft Nursery School114699 | Nursery | Good | 0.0% | 111 |