| 251 | Didcot Girls' School | 1,643 pupils | Academy · Day · 6th | Didcot, South East | — |
| 252 | Blatchington Mill School | 1,635 pupils | State · Day | Hove, South East | — |
| 253 | Ringwood School Academy | 1,626 pupils | Academy · Day · 6th | Ringwood, South East | — |
| 254 | Rainham School for Girls | 1,625 pupils | Academy · Day · 6th | Gillingham, South East | — |
| 255 | Oakwood School | 1,600 pupils | State · Day | Horley, South East | — |
| 256 | Sackville School | 1,599 pupils | State · Day · 6th | East Grinstead, South East | — |
| 257 | Valley Park School | 1,595 pupils | Academy · Day · 6th | Maidstone, South East | — |
| 258 | The Hazeley Academy | 1,590 pupils | Academy · Day · 6th | Milton Keynes, South East | — |
| 259 | Imberhorne School | 1,573 pupils | State · Day · 6th | East Grinstead, South East | — |
| 260 | Towers School and Sixth Form Centre | 1,559 pupils | Academy · Day · 6th | Ashford, South East | — |
| 261 | Felpham Community College | 1,557 pupils | State · Day · 6th | Bognor Regis, South East | — |
| 262 | Furze Platt Senior School | 1,547 pupils | Academy · Day · 6th | Maidenhead, South East | — |
| 263 | Highdown School and Sixth Form Centre | 1,545 pupils | Academy · Day · 6th | Reading, South East | — |
| 264 | Hillview School for Girls | 1,544 pupils | Academy · Day · 6th | Tonbridge, South East | — |
| 265 | Highworth Grammar School | 1,543 pupils | Grammar · Day · 6th | Ashford, South East | — |
| 266 | St John the Baptist Catholic Comprehensive School, Woking | 1,541 pupils | Academy · Day · 6th | Woking, South East | — |
| 267 | Warden Park Secondary Academy | 1,538 pupils | Academy · Day | Haywards Heath, South East | — |
| 268 | The Howard School | 1,534 pupils | Academy · Day · 6th | Gillingham, South East | — |
| 269 | All Hallows Catholic School | 1,514 pupils | Academy · Day · 6th | Farnham, South East | — |
| 270 | The Ashcombe School | 1,513 pupils | Academy · Day · 6th | Dorking, South East | — |
| 271 | The Bulmershe School | 1,506 pupils | Academy · Day · 6th | Reading, South East | — |
| 272 | The Judd School | 1,499 pupils | Grammar · Day · 6th | Tonbridge, South East | — |
| 273 | Gravesend Grammar School | 1,493 pupils | Grammar · Day · 6th | Gravesend, South East | — |
| 274 | Crestwood Community School | 1,489 pupils | State · Day | Eastleigh, South East | — |
| 275 | Oriel High School | 1,478 pupils | State · Day · 6th | Crawley, South East | — |