| Trinity Road Primary School114805 | Primary | Good | 24.6% | 402 |
| Tolleshunt D'Arcy St Nicholas Primary Academy147403 | Primary | Good | 10.8% | 111 |
| Tollesbury School114925 | Primary | Good | 14.7% | 163 |
| Tiptree Heath Primary School147560 | Primary | Good | 9.1% | 208 |
| Thurstable School137241 | Secondary | Good | 17.1% | 1,031 |
| Thundersley Primary School141626 | Primary | Good | 10.5% | 456 |
| Thriftwood School137554 | Not applicable | Outstanding | 49.5% | 266 |
| Thomas Willingale Primary School and Nursery115309 | Primary | Good | 29.2% | 487 |
| Theydon Bois Primary School145999 | Primary | Good | 4.7% | 318 |
| The Yellow House School134398 | Not applicable | — | — | 16 |
| The Willows Primary School143206 | Primary | Good | 27.6% | 651 |
| The Wickford Church of England School137744 | Primary | Outstanding | 8.1% | 140 |
| The Tyrrells School137607 | Primary | Good | 11.6% | 421 |
| The Trinity School143701 | Secondary | Good | 14.7% | 597 |
| The Tower School148422 | Not applicable | — | — | 59 |
| The Thomas Lord Audley School137937 | Secondary | Good | 30.4% | 921 |
| The Sweyne Park School139534 | Secondary | Good | 18.8% | 1,422 |
| The Stanway School137927 | Secondary | Good | 13.5% | 1,383 |
| The St Aubyn Centre Education Department134260 | Not applicable | Outstanding | 0.0% | 7 |
| The Sixth Form College Colchester151134 | 16 plus | — | — | — |
| The Sir Geoff Hurst Academy150846 | Not applicable | — | — | — |
| The Sandon School137240 | Secondary | Requires Improvement | 15.5% | 1,231 |
| The Robert Drake Primary School137246 | Primary | Good | 13.1% | 312 |
| The Ramsey Academy, Halstead139248 | Secondary | Requires Improvement | 24.1% | 744 |
| The Phoenix Primary School143128 | Primary | Good | 25.4% | 714 |
| The Ongar Academy141947 | Secondary | Good | 27.2% | 511 |
| The Mayflower Primary School114747 | Primary | Good | 46.8% | 370 |
| The King John School136577 | Secondary | Good | 14.7% | 2,108 |
| The King Edmund School136868 | Secondary | Good | 33.4% | 1,354 |
| The James Hornsby School138865 | Secondary | Good | 46.2% | 1,037 |
| The Hawthorns School149335 | Not applicable | — | 20.0% | 30 |
| The Greenwell Academy149745 | Not applicable | — | 31.3% | 16 |
| The Gilberd School137926 | Secondary | Outstanding | 14.1% | 1,574 |
| The Flitch Green Academy136441 | Primary | Good | 11.7% | 265 |
| The FitzWimarc School141841 | Secondary | Good | 14.3% | 1,787 |
| The Edith Borthwick School115464 | Not applicable | Good | 42.7% | 241 |
| The Downs Primary School and Nursery146157 | Primary | Good | 30.3% | 402 |
| The Deanes143639 | Secondary | Good | 24.7% | 587 |
| The Cornelius Vermuyden School140308 | Secondary | Inadequate | 27.6% | 727 |
| The Cathedral Church of England Voluntary Aided Primary School, Chelmsford115289 | Primary | Good | 7.7% | 313 |
| The Bromfords School139181 | Secondary | Requires Improvement | 22.8% | 1,135 |
| The Boswells School137874 | Secondary | Good | 15.7% | 1,409 |
| The Bishops' Church of England and Roman Catholic Primary School115204 | Primary | Good | 10.3% | 439 |
| The Bishop William Ward Church of England Primary School115144 | Primary | Good | 15.5% | 207 |
| The Billericay School136861 | Secondary | Good | 17.2% | 1,702 |
| The Belsteads School144378 | Not applicable | — | — | 43 |
| The Beaulieu Park School145916 | All-through | Outstanding | 10.9% | 1,609 |
| The Basildon Upper Academy135897 | Secondary | Good | 44.2% | 913 |
| The Basildon Lower Academy135895 | Secondary | Requires Improvement | 48.6% | 909 |
| The Appleton School136579 | Secondary | Good | 15.9% | 1,561 |