| 26 | Invicta Grammar School Period 202425 | 70.8 | Grammar · Day · 6th | Maidstone, South East | Outstanding |
| 27 | Burnham Grammar School Period 202425 | 70.1 | Grammar · Day · 6th | Slough, South East | — |
| 28 | Weald of Kent Grammar School Period 202425 | 70.0 | Grammar · Day · 6th | Tonbridge, South East | — |
| 29 | Sir Joseph Williamson's Mathematical School Period 202425 | 69.5 | Grammar · Day · 6th | Rochester, South East | Outstanding |
| 30 | Oakwood Park Grammar School Period 202425 | 68.9 | Grammar · Day · 6th | Maidstone, South East | — |
| 31 | Maidstone Grammar School Period 202425 | 68.4 | Grammar · Day · 6th | Maidstone, South East | — |
| 32 | The Rochester Grammar School Period 202425 | 68.4 | Grammar · Day · 6th | Rochester, South East | Good |
| 33 | Simon Langton Girls' Grammar School Period 202425 | 67.7 | Grammar · Day · 6th | Canterbury, South East | — |
| 34 | The Norton Knatchbull School Period 202425 | 67.3 | Grammar · Day · 6th | Ashford, South East | Good |
| 35 | Cranbrook School Period 202425 | 66.9 | Grammar · Boarding · 6th | Cranbrook, South East | Good |
| 36 | Simon Langton Grammar School for Boys Period 202425 | 66.8 | Grammar · Day · 6th | Canterbury, South East | — |
| 37 | Wilmington Grammar School for Girls Period 202425 | 66.7 | Grammar · Day · 6th | Dartford, South East | Good |
| 38 | Barton Court Grammar School Period 202425 | 66.4 | Grammar · Day · 6th | Canterbury, South East | Good |
| 39 | Maidstone Grammar School for Girls Period 202425 | 66.4 | Grammar · Day · 6th | Maidstone, South East | Outstanding |
| 40 | Fort Pitt Grammar School Period 202425 | 65.9 | Grammar · Day · 6th | Chatham, South East | Outstanding |
| 41 | Dover Grammar School for Boys Period 202425 | 65.4 | Grammar · Day · 6th | Dover, South East | — |
| 42 | Gravesend Grammar School Period 202425 | 65.3 | Grammar · Day · 6th | Gravesend, South East | — |
| 43 | Dane Court Grammar School Period 202425 | 65.3 | Grammar · Day · 6th | Broadstairs, South East | Good |
| 44 | St Andrew's Catholic School Period 202425 | 65.2 | Academy · Day · 6th | Leatherhead, South East | Outstanding |
| 45 | Queen Elizabeth's Grammar School Period 202425 | 65.1 | Grammar · Day · 6th | Faversham, South East | Good |
| 46 | Salesian School, Chertsey Period 202425 | 64.9 | Academy · Day · 6th | Chertsey, South East | — |
| 47 | Wilmington Grammar School for Boys Period 202425 | 64.6 | Grammar · Day · 6th | Dartford, South East | — |
| 48 | Hinchley Wood School Period 202425 | 64.5 | Academy · Day · 6th | Esher, South East | Outstanding |
| 49 | Mayfield Grammar School, Gravesend Period 202425 | 64.3 | Grammar · Day · 6th | Gravesend, South East | Outstanding |
| 50 | Chatham & Clarendon Grammar School Period 202425 | 64.0 | Grammar · Day · 6th | Ramsgate, South East | — |