| Lawford Church of England Voluntary Aided Primary School115297 | Primary | Good | 6.3% | 349 |
| Latton Green Primary Academy141381 | Primary | Good | 14.6% | 199 |
| Larkrise Primary School143124 | Primary | Good | 39.1% | 174 |
| Larchwood Primary School140828 | Primary | Good | 19.0% | 420 |
| Langham Primary Academy151529 | Primary | Good | 9.9% | 101 |
| Langham Oaks141512 | Not applicable | Good | 58.5% | 82 |
| Langenhoe Community Primary School151064 | Primary | Good | 14.9% | 104 |
| Lambourne Primary School145604 | Primary | Good | 20.6% | 214 |
| Lakelands Primary School147844 | Primary | Outstanding | 17.6% | 340 |
| Laindon Park Primary School & Nursery145812 | Primary | Good | 30.5% | 217 |
| Kirby Primary Academy139806 | Primary | Good | 22.2% | 207 |
| Kingswood Primary School and Nursery115268 | Primary | Good | 14.6% | 444 |
| Kingswode Hoe School144897 | Not applicable | Good | 57.6% | 167 |
| Kingston Primary School137220 | Primary | Outstanding | 8.6% | 210 |
| Kingsmoor Academy138996 | Primary | Good | 29.9% | 280 |
| Kings Road Primary School144304 | Primary | Good | 34.0% | 403 |
| Kings Ford Academy142001 | Primary | Requires Improvement | 29.6% | 152 |
| King's Ford Infant School and Nursery114717 | Primary | Good | 24.0% | 154 |
| King Harold Business & Enterprise Academy136342 | Secondary | Good | 33.5% | 812 |
| King Edward Vi Grammar School, Chelmsford136642 | Secondary | Outstanding | 2.5% | 1,153 |
| Kents Hill Junior School137631 | Primary | Good | 9.0% | 343 |
| Kents Hill Infant Academy137395 | Primary | Good | 10.0% | 239 |
| Kendall Church of England Primary School115064 | Primary | Outstanding | 20.6% | 209 |
| Kelvedon St Mary's Church of England Primary Academy139360 | Primary | Good | 16.3% | 464 |
| Kelvedon Hatch Community Primary School149969 | Primary | Good | 18.4% | 147 |
| Katherines Primary Academy and Nursery144823 | Primary | Good | 27.6% | 234 |
| Katherine Semar Junior School141572 | Primary | Outstanding | 13.3% | 256 |
| Katherine Semar Infant School141574 | Primary | Outstanding | 9.4% | 180 |
| Joyce Frankland Academy, Newport138734 | Secondary | Good | 12.1% | 865 |
| Jotmans Hall Primary School137247 | Primary | Requires Improvement | 18.5% | 304 |
| John Ray Junior School143538 | Primary | Good | 30.3% | 439 |
| John Ray Infant School150501 | Primary | Good | 20.2% | 319 |
| John Bunyan Primary School and Nursery114818 | Primary | Good | 41.3% | 501 |
| Jerounds Primary Academy145557 | Primary | Good | 26.9% | 390 |
| Janet Duke Primary School144351 | Primary | Good | 54.2% | 611 |
| Ivy Chimneys Primary School145605 | Primary | Good | 18.0% | 338 |
| Ingrave Johnstone Church of England Voluntary Aided Primary School115154 | Primary | Good | 10.0% | 210 |
| Ingatestone Infant School150748 | Primary | Good | 1.6% | 127 |
| Ingatestone and Fryerning Church of England Junior School150749 | Primary | Good | 5.8% | 189 |
| Hylands School137072 | Secondary | Requires Improvement | 45.2% | 614 |
| Hutton All Saints' Church of England Primary School137698 | Primary | Good | 15.0% | 200 |
| Howe Green House School115433 | Not applicable | — | — | 130 |
| Howbridge Infant School114951 | Primary | Good | 23.0% | 265 |
| Howbridge Church of England Junior School140666 | Primary | Good | 28.1% | 356 |
| Honywood School136729 | Secondary | Good | 16.8% | 849 |
| Home Farm Primary School147713 | Primary | Strong standard | 7.3% | 422 |
| Holy Trinity CofE Primary School, Eight Ash Green and Aldham150062 | Primary | Good | 26.5% | 102 |
| Holy Trinity Church of England Voluntary Controlled Primary School, Halstead115066 | Primary | Good | 21.4% | 210 |
| Holy Family Catholic Primary School145995 | Primary | Good | 14.9% | 216 |
| Holy Family Catholic Primary School148111 | Primary | Good | 17.5% | 201 |