| Trinity Road Primary School114805 | Primary | Good | 26.9% | 387 |
| Tolleshunt D'Arcy St Nicholas Primary Academy147403 | Primary | Good | 13.6% | 110 |
| Tollesbury School114925 | Primary | Good | 12.4% | 169 |
| Tiptree Heath Primary School147560 | Primary | Good | 12.1% | 198 |
| Thurstable School137241 | Secondary | Good | 18.5% | 932 |
| Thundersley Primary School141626 | Primary | Good | 9.7% | 423 |
| Thriftwood School137554 | Not applicable | Outstanding | 57.4% | 279 |
| Thomas Willingale Primary School and Nursery115309 | Primary | Good | 30.7% | 486 |
| Theydon Bois Primary School145999 | Primary | Good | 5.0% | 319 |
| The Yellow House School134398 | Not applicable | — | — | 14 |
| The Willows Primary School143206 | Primary | Good | 26.4% | 651 |
| The Wickford Church of England School137744 | Primary | Outstanding | 6.1% | 135 |
| The Tyrrells School137607 | Primary | Good | 11.0% | 420 |
| The Trinity School143701 | Secondary | Good | 16.3% | 780 |
| The Tower School148422 | Not applicable | — | — | 60 |
| The Thomas Lord Audley School137937 | Secondary | Good | 30.4% | 940 |
| The Sweyne Park School139534 | Secondary | Good | 20.9% | 1,429 |
| The Stanway School137927 | Secondary | Good | 16.2% | 1,396 |
| The St Aubyn Centre Education Department134260 | Not applicable | Outstanding | 0.0% | 6 |
| The Sixth Form College Colchester151134 | 16 plus | — | — | — |
| The Sir Geoff Hurst Academy150846 | Not applicable | — | 71.2% | 66 |
| The Sandon School137240 | Secondary | Requires Improvement | 15.3% | 1,218 |
| The Robert Drake Primary School137246 | Primary | Good | 14.7% | 313 |
| The Ramsey Academy, Halstead139248 | Secondary | Requires Improvement | 25.2% | 702 |
| The Phoenix Primary School143128 | Primary | Good | 25.2% | 717 |
| The Ongar Academy141947 | Secondary | Good | 27.4% | 467 |
| The Mayflower Primary School114747 | Primary | Good | 44.7% | 356 |
| The King John School136577 | Secondary | Expected standard | 13.4% | 2,098 |
| The King Edmund School136868 | Secondary | Good | 36.2% | 1,318 |
| The James Hornsby School138865 | Secondary | Needs attention | 48.0% | 1,040 |
| The Hawthorns School149335 | Not applicable | Expected standard | 23.2% | 69 |
| The Greenwell Academy149745 | Not applicable | — | 26.3% | 19 |
| The Gilberd School137926 | Secondary | Outstanding | 15.4% | 1,588 |
| The Flitch Green Academy136441 | Primary | Good | 11.0% | 272 |
| The FitzWimarc School141841 | Secondary | Good | 13.0% | 1,770 |
| The Edith Borthwick School115464 | Not applicable | Expected standard | 39.9% | 243 |
| The Downs Primary School and Nursery146157 | Primary | Good | 26.9% | 362 |
| The Deanes143639 | Secondary | Good | 25.1% | 588 |
| The Cornelius Vermuyden School152376 | Secondary | — | — | — |
| The Cathedral Church of England Voluntary Aided Primary School, Chelmsford115289 | Primary | Expected standard | 7.3% | 314 |
| The Bromfords School139181 | Secondary | Requires Improvement | 24.4% | 1,181 |
| The Boswells School137874 | Secondary | Good | 16.4% | 1,423 |
| The Bishops' Church of England and Roman Catholic Primary School115204 | Primary | Good | 9.4% | 437 |
| The Bishop William Ward Church of England Primary School115144 | Primary | Good | 17.2% | 203 |
| The Billericay School136861 | Secondary | Good | 18.1% | 1,729 |
| The Belsteads School144378 | Not applicable | — | — | 52 |
| The Beaulieu Park School145916 | All-through | Outstanding | 11.4% | 1,763 |
| The Basildon Upper Academy135897 | Secondary | Good | 45.7% | 847 |
| The Basildon Lower Academy135895 | Secondary | Requires Improvement | 52.6% | 892 |
| The Appleton School136579 | Secondary | Good | 18.4% | 1,597 |