| 90.8 | 98.8 | St Paul's Girls' School | London | Day | Girls | 26,760 | |
| 88.9 | 95.2 | Westminster School | Westminster | Day/Board | Boys. Mixed sixth form | 29,709 | 39,252 |
| 85.1 | 93.9 | North London Collegiate School | Edgware | Day | Girls | 20,028 | |
| 84.6 | 96.8 | King's College School | Wimbledon | Day | Boys. Mixed sixth form | 21,600 | |
| 84 | 95.1 | St Paul's School | London | Day/Board | Boys | 25,032 | 37,611 |
| 82.4 | 97.5 | City of London School for Girls | London | Day | Girls | 18,384 | |
| 80.2 | 90.6 | James Allen's Girls' School | London | Day | Girls | 17,991 | |
| 76.2 | 89.9 | Highgate School | Highgate | Day | Mixed | 20,970 | |
| 76.1 | 95.4 | The Godolphin and Latymer School | London | Day | Girls | 21,615 | |
| 75.9 | 95 | The Lady Eleanor Holles School | Hampton | Day | Girls | 20,196 | |
| 75.7 | 91.6 | Alleyn's School | London | Day | Mixed | 19,851 | |
| 71.8 | 93.8 | Wimbledon High School GDST | London | Day | Girls | 18,810 | |
| 70.4 | 89 | University College School | Hampstead | Day | Boys, mixed pre-prep. Mixed sixth form | 20,328 | |
| 70.1 | 88.2 | South Hampstead High School GDST | London | Day | Girls | 18,654 | |
| 70 | 91.4 | Bancroft's School | Woodford Green | Day | Mixed | 18,123 | |
| 69.1 | 88.1 | Merchant Taylors' School | Northwood | Day | Boys | 24,000 | |
| 69 | 93.7 | Putney High School GDST | London | Day | Girls | 18,900 | |
| 68.9 | 90 | Hampton School | Hampton | Day | Boys, mixed pre-prep | 20,055 | |
| 68.4 | 87.1 | City of London School | London | Day | Boys | 17,901 | |
| 67.2 | 93.3 | Kingston Grammar School | Kingston upon Thames | Day | Mixed | 19,230 | |
| 66.9 | 90.6 | Latymer Upper School | London | Day | Mixed | 20,130 | |
| 65.4 | 94 | Notting Hill and Ealing High School GDST | London | Day | Girls | 18,561 | |
| 63.6 | 90.2 | Trinity School | Croydon | Day | Boys. Mixed sixth form | 17,448 | |
| 63.4 | 88.6 | Channing School | London | Day | Girls | 19,410 | |
| 63.2 | 91.1 | Eltham College | London | Day | Boys. Mixed sixth form | 17,775 | |
| 62.6 | 88.4 | Dulwich College | London | Day | Mixed | 20,448 | 42,681 |
| 57.3 | 89.1 | Queen's College London | London | Day | Girls | 19,125 | |
| 57.2 | 85 | Whitgift School | Croydon | Day/Board | Boys | 20,136 | 37,866 |
| 56.1 | 75.7 | Francis Holland School, Regent's Park | London | Day | Girls | 20,040 | |
| 55.3 | 78.9 | Queen's Gate School | London | Day | Girls | 20,550 | |
| 54.8 | 82.1 | St James Senior Girls' School | London | Day | Girls, mixed prep | 20,100 | |
| 54.4 | 84.5 | St Dunstan's College | London | Day | Mixed | 17,196 | |
| 52.8 | 80.3 | St Helen's School | Northwood | Day | Girls | 17,448 | |
| 51.6 | 89.3 | Old Palace of John Whitgift School | Croydon | Day | Girls | 15,366 | |
| 51.6 | 87.5 | Surbiton High School | Kingston upon Thames | Day | Girls, separate boys' and girls' prep | 17,142 | |
| 50 | 77.7 | Northwood College for Girls GDST | Northwood | Day | Girls | 17,508 | |
| 48.6 | 74.3 | Hampton Court House | East Molesey | Day | Mixed | 19,506 | |
| 48.4 | 71.6 | Forest School | London | Day | Mixed | 18,681 | |
| 48.2 | 64.3 | Mount House School | Barnet | Day | Mixed | 15,030 | |
| 47.2 | 74.1 | Cambridge Tutors College | Croydon | Day/Board | Mixed | 15,900 | 32,895 |
| 46.9 | 68.8 | Bellerbys College London | London | Day/Board | Mixed | 27,060 | 40,800 |
| 46.9 | 81.5 | Brampton College | London | Day | Mixed | 19,233 | |
| 46.6 | 79.6 | Colfe's School | London | Day | Mixed | 16,929 | |
| 46.3 | 72.2 | Ibstock Place School | London | Day | Mixed | 20,880 | |
| 44.1 | 78.5 | Sutton High School GDST | Sutton | Day | Girls | 17,043 | |
| 41.7 | 73.7 | St Benedict's School | London | Day | Mixed | 16,845 | |
| 41 | 80 | Francis Holland School, Sloane Square | London | Day | Girls | 20,910 | |
| 38.6 | 72.4 | Mill Hill School | London | Day/Board | Mixed | 21,141 | 33,717 |
| 38.3 | 61.7 | The Swaminarayan School | London | Day | Mixed | 13,320 | |
| 36.3 | 65.7 | Royal Russell School | Croydon | Day/Board | Mixed | 18,480 | 36,525 |
| 35.1 | 70.2 | Streatham and Clapham High School GDST | London | Day | Girls | 17,622 | |
| 33.7 | 72.5 | Emanuel School | London | Day | Mixed | 18,582 | |
| 33.3 | 70.4 | St Catherine's School | Twickenham | Day | Girls | 14,130 | |
| 32.4 | 63.8 | Mander Portman Woodward (MPW) | London | Day | Mixed | 20,452 | |
| 32 | 70.3 | Bromley High School GDST | Bromley | Day | Girls | 17,091 | |
| 31.8 | 58.3 | The John Lyon School | Harrow on the Hill | Day | Boys | 18,582 | |
| 31.6 | 68.4 | St Augustine's Priory | London | Day | Girls | 15,693 | |
| 31.3 | 68.7 | Blackheath High School GDST | London | Day | Girls | 16,494 | |
| 31.3 | 62.7 | Croydon High School GDST | South Croydon | Day | Girls | 16,656 | |
| 29.2 | 67 | Sydenham High School GDST | London | Day | Girls | 16,737 | |
| 28.4 | 50 | North Bridge House Senior Canonbury | | Day | Mixed | 19,335 | |
| 27.9 | 55.8 | The King Alfred School | London | Day | Mixed | 19,377 | |
| 27.2 | 51.5 | Farringtons School | Chislehurst | Day/Board | Mixed | 15,120 | 31,680 |
| 25.4 | 45.7 | CATS College London | London | Day/Board | Mixed | 27,330 | 47,325 |
| 24.8 | 55.4 | DLD College London | London | Day | Mixed | 23,001 | |
| 19.2 | 49.8 | Fine Arts College | London | Day | Mixed | 21,690 | |
| 17.9 | 33.3 | More House School | London | Day | Girls | 19,950 | |
| 14.9 | 34 | Bishop Challoner School | Bromley | Day | Mixed | 13,500 | |
| 58.3 | Halliford School | Shepperton | Day | Boys | 15,960 | |
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