| St Mary's Church of England High School (va)138360 | Secondary | Good | 30.9% | 982 |
| St Mary's Church of England VA Primary School, Welham Green117497 | Primary | Requires Improvement | 28.7% | 157 |
| St Mary's CofE Primary School, Northchurch117424 | Primary | Good | 9.2% | 225 |
| St Mary's Infants' School117384 | Primary | Good | 25.2% | 106 |
| St Mary's Junior Mixed School117385 | Primary | Good | 32.3% | 201 |
| St Mary's Rickmansworth CofE Primary School150576 | Primary | Good | 12.1% | 190 |
| St Mary's Voluntary Controlled Church of England Junior School117409 | Primary | Good | 14.0% | 236 |
| St Meryl School117166 | Primary | Good | 11.4% | 227 |
| St Michael's Church of England Primary School117426 | Primary | Good | 15.0% | 220 |
| St Michael's Church of England Voluntary Aided Primary School, St Albans117451 | Primary | Outstanding | 9.1% | 198 |
| St Michael's Woolmer Green CofE VA Primary School117461 | Primary | Good | 16.8% | 190 |
| St Nicholas CofE (va) Primary School and Nursery117456 | Primary | Requires Improvement | 19.0% | 212 |
| St Nicholas CofE VA Primary School117434 | Primary | Good | 3.9% | 154 |
| St Nicholas Elstree Church of England VA Primary School117431 | Primary | Requires Improvement | 15.8% | 57 |
| St Paul's Catholic Primary School151596 | Primary | Good | — | — |
| St Paul's Church of England Primary School, Langleybury117417 | Primary | Good | 8.9% | 211 |
| St Paul's Church of England Voluntary Aided Primary School, Chipperfield117441 | Primary | Good | 12.6% | 206 |
| St Paul's Walden Primary School117144 | Primary | Good | 16.7% | 66 |
| St Peter's Church of England Voluntary Aided Primary School117448 | Primary | Good | 9.7% | 247 |
| St Peter's School117140 | Primary | Good | 5.6% | 365 |
| St Philip Howard Catholic Primary School117469 | Primary | Good | 22.8% | 462 |
| St Rose's Catholic Infant School150799 | Primary | Good | 5.9% | 218 |
| St Teresa Catholic Primary School117466 | Primary | Good | 14.5% | 207 |
| St Thomas More Roman Catholic Primary School138354 | Primary | Good | 3.6% | 222 |
| St Thomas More Roman Catholic Primary School, a Voluntary Academy149742 | Primary | Requires Improvement | 8.4% | 178 |
| St Thomas of Canterbury Catholic Primary School148495 | Primary | Good | 13.9% | 122 |
| Stanborough Primary School135596 | Not applicable | — | — | 59 |
| Stanborough School137847 | Secondary | Good | 18.4% | 1,261 |
| Stanborough Secondary School117640 | Not applicable | — | — | 70 |
| Stapleford Primary School117455 | Primary | Good | 7.4% | 74 |
| Stevenage Education Support Centre130359 | Not applicable | Outstanding | 75.0% | 4 |
| Stonehill School117345 | Primary | Good | 34.7% | 203 |
| Stormont School117644 | Not applicable | — | — | 121 |
| Strathmore Infant and Nursery School117114 | Primary | Good | 3.4% | 187 |
| Studlands Rise First School117331 | Primary | Good | 8.7% | 170 |
| Summercroft Primary School137351 | Primary | Good | 8.3% | 443 |
| Summerswood Primary School117182 | Primary | Requires Improvement | 26.9% | 373 |
| Swallow Dell Primary and Nursery School133488 | Primary | Good | 28.5% | 422 |
| Swing Gate Infant School and Nursery117260 | Primary | Good | 6.3% | 158 |
| Tanners Wood Junior Mixed and Infant School117178 | Primary | Good | 21.8% | 427 |
| Tannery Drift School117134 | Primary | Good | 8.9% | 325 |
| Templewood Primary School117174 | Primary | Good | 8.5% | 233 |
| Tenterfield Nursery School117078 | Nursery | Outstanding | 0.0% | 87 |
| Tewin Cowper Church of England Voluntary Aided Primary School117457 | Primary | Requires Improvement | 10.9% | 165 |
| The Abbey Church of England Voluntary Aided Primary School, St Albans117449 | Primary | Good | 4.0% | 177 |
| The Adeyfield Academy145430 | Secondary | Good | 33.9% | 817 |
| The Astley Cooper School117552 | Secondary | Good | 33.6% | 947 |
| The Bishop's Stortford High School117577 | Secondary | Outstanding | 5.9% | 1,260 |
| The Broxbourne School136396 | Secondary | Outstanding | 11.2% | 1,415 |
| The Chauncy School137090 | Secondary | Outstanding | 16.6% | 1,515 |