| 1 | Dr Challoner's High School | 95.8 compositeOfsted33.3 Att829.3 EM5+33.2 | Grammar · Day · 6th | Amersham, South East | Outstanding 2023-11-21 |
| 2 | Aylesbury High School | 93.8 compositeOfsted33.3 Att827.5 EM5+33.0 | Grammar · Day · 6th | Aylesbury, South East | Outstanding 2023-12-05 |
| 3 | Tunbridge Wells Girls' Grammar School | 93.2 compositeOfsted33.3 Att827.2 EM5+32.6 | Grammar · Day · 6th | Tunbridge Wells, South East | Outstanding 2023-09-19 |
| 4 | Wycombe High School | 93.0 compositeOfsted33.3 Att827.4 EM5+32.3 | Grammar · Day · 6th | High Wycombe, South East | Outstanding 2024-04-30 |
| 5 | Kendrick School | 92.8 compositeOfsted28.3 Att831.1 EM5+33.3 | Grammar · Day · 6th | Reading, South East | Outstanding 2022-11-08×0.85 |
| 6 | Invicta Grammar School | 90.5 compositeOfsted33.3 Att826.2 EM5+30.9 | Grammar · Day · 6th | Maidstone, South East | Outstanding 2024-04-16 |
| 7 | Mayfield Grammar School, Gravesend | 85.5 compositeOfsted33.3 Att823.8 EM5+28.4 | Grammar · Day · 6th | Gravesend, South East | Outstanding 2024-04-30 |
| 8 | Tonbridge Grammar School | 84.7 compositeOfsted23.3 Att828.6 EM5+32.8 | Grammar · Day · 6th | Tonbridge, South East | Outstanding 2019-10-16×0.7 |
| 9 | Beaconsfield High School | 84.6 compositeOfsted23.3 Att828.1 EM5+33.1 | Grammar · Day · 6th | Beaconsfield, South East | Outstanding 2019-12-11×0.7 |
| 10 | Maidstone Grammar School for Girls | 82.2 compositeOfsted28.3 Att824.6 EM5+29.2 | Grammar · Day · 6th | Maidstone, South East | Outstanding 2023-03-07×0.85 |
| 11 | Fort Pitt Grammar School | 81.1 compositeOfsted28.3 Att824.4 EM5+28.3 | Grammar · Day · 6th | Chatham, South East | Outstanding 2022-10-04×0.85 |
| 12 | The Holt School | 78.7 compositeOfsted28.3 Att823.6 EM5+26.8 | Academy · Day · 6th | Wokingham, South East | Outstanding 2023-03-28×0.85 |
| 13 | The Rochester Grammar School | 77.4 compositeOfsted21.2 Att825.3 EM5+30.8 | Grammar · Day · 6th | Rochester, South East | Good 2023-01-17×0.85 |
| 14 | Wilmington Grammar School for Girls | 75.7 compositeOfsted21.2 Att824.7 EM5+29.7 | Grammar · Day · 6th | Dartford, South East | Good 2022-11-16×0.85 |
| 15 | Davison Church of England High School for Girls, Worthing | 71.5 compositeOfsted33.3 Att819.3 EM5+18.9 | State · Day | Worthing, South East | Outstanding 2024-06-04 |
| 16 | Highsted Grammar School | 71.3 compositeOfsted21.2 Att822.6 EM5+27.5 | Grammar · Day · 6th | Sittingbourne, South East | Good 2023-01-17×0.85 |
| 17 | Dartford Grammar School for Girls | 69.7 composite | Grammar · Day · 6th | Dartford, South East | — 2021-10-20 |
| 18 | The Folkestone School for Girls | 68.9 compositeOfsted25.0 Att821.4 EM5+22.4 | Grammar · Day · 6th | Folkestone, South East | Good 2024-04-23 |
| 19 | Highworth Grammar School | 67.8 composite | Grammar · Day · 6th | Ashford, South East | — 2025-01-14 |
| 20 | Weald of Kent Grammar School | 67.2 composite | Grammar · Day · 6th | Tonbridge, South East | — 2024-10-01 |
| 21 | Simon Langton Girls' Grammar School | 64.4 composite | Grammar · Day · 6th | Canterbury, South East | — 2023-09-27 |
| 22 | Millais School | 60.0 compositeOfsted21.2 Att819.1 EM5+19.7 | State · Day | Horsham, South East | Good 2022-09-13×0.85 |
| 23 | Baylis Court School | 59.9 compositeOfsted21.2 Att819.1 EM5+19.5 | Academy · Day · 6th | Slough, South East | Good 2022-03-16×0.85 |
| 24 | Rosebery School | 58.7 composite | Academy · Day · 6th | Epsom, South East | — 2023-01-25 |
| 25 | Reading Girls' School | 58.6 compositeOfsted21.2 Att819.2 EM5+18.2 | Academy · Day | Reading, South East | Good 2021-11-24×0.85 |