| 301 | Oathall Community College | 1,303 pupils | State · Day | Haywards Heath, South East | — |
| 302 | Northfleet School for Girls | 1,302 pupils | State · Day · 6th | Gravesend, South East | — |
| 303 | St Philip Howard Catholic School | 1,301 pupils | Academy · Day · 6th | Bognor Regis, South East | — |
| 304 | The Westgate School | 1,284 pupils | Academy · Day · 6th | Slough, South East | — |
| 305 | Bohunt School Wokingham | 1,280 pupils | Academy · Day | Wokingham, South East | — |
| 306 | Burnham Grammar School | 1,271 pupils | Grammar · Day · 6th | Slough, South East | — |
| 307 | The North School | 1,270 pupils | Academy · Day · 6th | Ashford, South East | — |
| 308 | Horndean Technology College | 1,268 pupils | State · Day | Waterlooville, South East | — |
| 309 | Chichester High School | 1,258 pupils | Academy · Day · 6th | Chichester, South East | — |
| 310 | Simon Langton Girls' Grammar School | 1,256 pupils | Grammar · Day · 6th | Canterbury, South East | — |
| 311 | Matthew Arnold School | 1,250 pupils | Academy · Day · 6th | Oxford, South East | — |
| 312 | Dartford Grammar School for Girls | 1,248 pupils | Grammar · Day · 6th | Dartford, South East | — |
| 313 | Admiral Lord Nelson School | 1,244 pupils | Academy · Day | Portsmouth, South East | — |
| 314 | The Portsmouth Academy | 1,243 pupils | Academy · Day | Portsmouth, South East | — |
| 315 | Newlands Girls' School | 1,242 pupils | Academy · Day · 6th | Maidenhead, South East | — |
| 316 | Holmer Green Senior School | 1,240 pupils | Academy · Day · 6th | High Wycombe, South East | — |
| 317 | Leigh Academy Mascalls | 1,238 pupils | Academy · Day · 6th | Tonbridge, South East | — |
| 318 | Priestlands School | 1,236 pupils | Academy · Day | Lymington, South East | — |
| 319 | The Willink School | 1,233 pupils | State · Day · 6th | Reading, South East | — |
| 320 | Heathside School | 1,230 pupils | Academy · Day · 6th | Weybridge, South East | — |
| 321 | The Cooper School | 1,228 pupils | Academy · Day · 6th | Bicester, South East | — |
| 322 | St Anne's Catholic School | 1,225 pupils | Academy · Day · 6th | Southampton, South East | — |
| 323 | St Birinus School | 1,212 pupils | Academy · Day · 6th | Didcot, South East | — |
| 324 | The Thomas Aveling School | 1,212 pupils | Academy · Day · 6th | Rochester, South East | — |
| 325 | Simon Langton Grammar School for Boys | 1,211 pupils | Grammar · Day · 6th | Canterbury, South East | — |