| Newnham Junior School102393 | Primary | Outstanding | 9.2% | 357 |
| Newnham Infant and Nursery School102394 | Primary | Good | 5.4% | 296 |
| Nanaksar Primary School139926 | Primary | Good | 10.1% | 198 |
| Moorcroft School138158 | Not applicable | Outstanding | 46.9% | 147 |
| Minet Junior School102391 | Primary | Good | 40.9% | 381 |
| Minet Infant and Nursery School102392 | Primary | Good | 36.9% | 406 |
| Meadow High School102462 | Not applicable | Good | 45.8% | 285 |
| McMillan Nursery School102365 | Nursery | Good | 0.0% | 174 |
| London School of Theology133052 | Not applicable | — | — | — |
| Laurel Lane Primary School139275 | Primary | Requires Improvement | 42.8% | 313 |
| Landon School Harmondsworth150995 | Not applicable | — | — | 15 |
| Lake Farm Park Academy140391 | Primary | Good | 22.9% | 667 |
| Lady Nafisa School136046 | Not applicable | — | — | 88 |
| Lady Bankes Primary School102388 | Primary | Outstanding | 18.8% | 642 |
| John Locke Academy140387 | Primary | Outstanding | 8.5% | 674 |
| Hruc (Harrow, Richmond & Uxbridge Colleges)130446 | 16 plus | — | — | — |
| Holy Trinity CofE Primary School102418 | Primary | Good | 21.7% | 204 |
| Hillside Junior School102435 | Primary | Requires Improvement | 19.9% | 221 |
| Hillside Infant School102434 | Primary | Good | 11.6% | 219 |
| Hillingdon Primary School141055 | Primary | Outstanding | 20.7% | 685 |
| Hillingdon Manor School131940 | Not applicable | — | — | 275 |
| Highfield Primary School102407 | Primary | Good | 29.4% | 277 |
| Hewens Primary School139909 | Primary | Good | 23.0% | 429 |
| Hewens College137078 | Secondary | Requires Improvement | 26.4% | 412 |
| Hermitage Primary School148775 | Primary | Good | 23.3% | 446 |
| Hedgewood School102465 | Not applicable | Good | 38.6% | 189 |
| Heathrow Primary School102385 | Primary | Good | 21.7% | 412 |
| Hayes Park School102439 | Primary | Good | 19.2% | 683 |
| Haydon School136519 | Secondary | Good | 22.9% | 1,549 |
| Harmondsworth Primary School102384 | Primary | Good | 24.7% | 208 |
| Harlyn Primary School102383 | Primary | Good | 13.7% | 401 |
| Harlington School102451 | Secondary | Good | 41.3% | 1,368 |
| Harefield School135004 | Secondary | Good | 44.3% | 254 |
| Harefield Junior School102381 | Primary | Good | 28.4% | 201 |
| Harefield Infant School102382 | Primary | Good | 12.3% | 170 |
| Guru Nanak Sikh Academy136329 | All-through | Good | 16.3% | 1,580 |
| Green Corridor146362 | Not applicable | — | — | — |
| Grange Park School102432 | Primary | Good | 20.9% | 373 |
| Grand Union Village152151 | Not applicable | Good | — | — |
| Global Academy142887 | Secondary | Good | 34.0% | 495 |
| Glebe Primary School102380 | Primary | Good | 8.4% | 620 |
| Frithwood Primary School102414 | Primary | Good | 11.0% | 391 |
| Field End Junior School148774 | Primary | Good | 26.0% | 277 |
| Field End Infant School102379 | Primary | Good | 17.3% | 301 |
| Dr Triplett's CofE Primary School102420 | Primary | Good | 21.6% | 451 |
| Deanesfield Primary School102377 | Primary | Outstanding | 15.1% | 676 |
| De Salis Studio College141035 | Secondary | Good | 12.5% | 178 |
| Cranford Park Academy138613 | Primary | Good | 25.2% | 871 |
| Cowley St Laurence CofE Primary School139306 | Primary | Good | 28.5% | 417 |
| Coteford Junior School139295 | Primary | Good | 23.1% | 255 |