| Newnham Infant and Nursery School102394 | Primary | Good | 7.8% | 302 |
| Nanaksar Primary School139926 | Primary | Good | 8.7% | 253 |
| Moorcroft School138158 | Not applicable | Outstanding | 51.3% | 131 |
| Minet Junior School102391 | Primary | Good | 45.1% | 348 |
| Minet Infant and Nursery School102392 | Primary | Good | 42.3% | 400 |
| Meadow High School102462 | Not applicable | Good | 49.3% | 305 |
| McMillan Nursery School102365 | Nursery | Good | 0.0% | 138 |
| London School of Theology133052 | Not applicable | — | — | — |
| Laurel Lane Primary School139275 | Primary | Requires Improvement | 49.4% | 267 |
| Landon School Harmondsworth150995 | Not applicable | — | — | 51 |
| Lake Farm Park Academy140391 | Primary | Good | 22.9% | 658 |
| Lady Nafisa School136046 | Not applicable | — | — | 85 |
| Lady Bankes Primary School102388 | Primary | Outstanding | 18.1% | 653 |
| John Locke Academy140387 | Primary | Outstanding | 9.1% | 674 |
| Hruc (Harrow, Richmond & Uxbridge Colleges)130446 | 16 plus | — | — | — |
| Holy Trinity CofE Primary School102418 | Primary | Good | 21.8% | 211 |
| Hillside Junior School102435 | Primary | Requires Improvement | 23.8% | 210 |
| Hillside Infant School102434 | Primary | Good | 16.1% | 201 |
| Hillingdon Primary School141055 | Primary | Outstanding | 22.4% | 695 |
| Hillingdon Manor School131940 | Not applicable | — | — | 167 |
| Highfield Primary School102407 | Primary | Good | 32.6% | 254 |
| Hewens Primary School139909 | Primary | Good | 28.6% | 412 |
| Hewens College137078 | Secondary | Requires Improvement | 27.8% | 410 |
| Hermitage Primary School148775 | Primary | Good | 21.5% | 426 |
| Hedgewood School102465 | Not applicable | Good | 43.8% | 185 |
| Heathrow Primary School102385 | Primary | Good | 19.7% | 396 |
| Hayes Park School102439 | Primary | Good | 21.8% | 655 |
| Haydon School136519 | Secondary | Good | 23.4% | 1,399 |
| Harmondsworth Primary School102384 | Primary | Good | 25.7% | 213 |
| Harlyn Primary School102383 | Primary | Good | 17.8% | 364 |
| Harlington School102451 | Secondary | Good | 44.0% | 1,409 |
| Harefield School135004 | Secondary | Good | 46.7% | 287 |
| Harefield Infant and Junior School102381 | Primary | Good | 31.4% | 207 |
| Guru Nanak Sikh Academy136329 | All-through | Good | 17.0% | 1,553 |
| Green Corridor146362 | Not applicable | — | — | — |
| Grange Park School102432 | Primary | Good | 19.2% | 628 |
| Grand Union Village School152151 | Not applicable | Good | 39.4% | 99 |
| Global Academy142887 | Secondary | Good | 32.1% | 526 |
| Glebe Primary School102380 | Primary | Good | 10.2% | 619 |
| Frithwood Primary School102414 | Primary | Good | 12.9% | 374 |
| Field End Junior School148774 | Primary | Good | 26.4% | 254 |
| Field End Infant School102379 | Primary | Good | 14.3% | 265 |
| Dr Triplett's CofE Primary School102420 | Primary | Expected standard | 21.8% | 439 |
| Deanesfield Primary School102377 | Primary | Outstanding | 15.5% | 684 |
| De Salis Studio College141035 | Secondary | Good | 19.4% | 174 |
| Cranford Park Academy138613 | Primary | Good | 24.7% | 831 |
| Cowley St Laurence CofE Primary School139306 | Primary | Good | 29.6% | 395 |
| Coteford Junior School139295 | Primary | Good | 30.8% | 224 |
| Coteford Infant School102375 | Primary | Good | 22.1% | 175 |
| Colham Manor Primary School102373 | Primary | Good | 30.7% | 627 |