| 276 | Heathside School | 1,230 pupils | Academy · Day · 6th | Weybridge, South East | — |
| 277 | The Cooper School | 1,228 pupils | Academy · Day · 6th | Bicester, South East | — |
| 278 | The Thomas Aveling School | 1,212 pupils | Academy · Day · 6th | Rochester, South East | — |
| 279 | The Radcliffe School | 1,210 pupils | State · Day · 6th | Milton Keynes, South East | — |
| 280 | Ash Manor School | 1,209 pupils | State · Day | Ash, South East | — |
| 281 | Woking High School | 1,208 pupils | Academy · Day | Woking, South East | — |
| 282 | The Bishop Wand Church of England School | 1,200 pupils | Academy · Day · 6th | Sunbury-on-Thames, South East | — |
| 283 | Ratton School | 1,197 pupils | Academy · Day | Eastbourne, South East | — |
| 284 | Cowes Enterprise College, An Ormiston Academy | 1,192 pupils | Academy · Day · 6th | Cowes, South East | — |
| 285 | Guildford County School | 1,190 pupils | Academy · Day · 6th | Guildford, South East | — |
| 286 | Wexham School | 1,188 pupils | State · Day · 6th | Slough, South East | — |
| 287 | Slough and Eton Church of England Business and Enterprise College | 1,178 pupils | Academy · Day · 6th | Slough, South East | — |
| 288 | St Gregory's Catholic School | 1,177 pupils | Academy · Day · 6th | Tunbridge Wells, South East | — |
| 289 | St Wilfrid's Catholic Comprehensive School, Crawley | 1,174 pupils | State · Day · 6th | Crawley, South East | — |
| 290 | Perins School | 1,166 pupils | Academy · Day | Alresford, South East | — |
| 291 | Priory School | 1,163 pupils | State · Day | Lewes, South East | — |
| 292 | St Simon Stock Catholic School | 1,151 pupils | Academy · Day · 6th | Maidstone, South East | — |
| 293 | St Edmund's Catholic School | 1,150 pupils | State · Day | Portsmouth, South East | — |
| 294 | Claverham Community College | 1,148 pupils | State · Day | Battle, South East | — |
| 295 | Wheatley Park School | 1,146 pupils | Academy · Day · 6th | Oxford, South East | — |
| 296 | Trinity School | 1,145 pupils | Free School · Day · 6th | Sevenoaks, South East | — |
| 297 | The Cottesloe School | 1,141 pupils | State · Day · 6th | Aylesbury, South East | — |
| 298 | Court Moor School | 1,133 pupils | State · Day | Fleet, South East | — |
| 299 | Esher Church of England High School | 1,130 pupils | Academy · Day | Esher, South East | — |
| 300 | The Romsey School | 1,130 pupils | Academy · Day | Romsey, South East | — |