Senior School Destinations
The excellence in teaching and learning at Arnold House is reflected in the impressive range of schools which the boys go to when they leave. Generations of boys have gone, via Common Entrance and Public School Scholarships exams, to leading senior schools: in London, City of London School, Highgate, Mill Hill, St. Paul's, University College School and Westminster; others have left Arnold House to board at Ampleforth, Bradfield, Bryanston, Charterhouse, Eton, Harrow, Marlborough, Rugby and Winchester, to name but a few of the many schools for which Arnold House pupils have successfully qualified.
| School | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | Total |
| Ampleforth |
0 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 4 |
| Bradfield | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 4 |
| Bryanston | 0 | 1 | 0 | 4 | 4 | 1 | 0 | 0 | 2 | 0 | 0 | 12 |
| Charterhouse | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 6 |
| City of London |
2 | 2 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 2 | 9 |
| Eton |
3 | 1 | 1 | 0 | 0 | 3 | 3 | 1 | 3 | 1 | 2 | 18 |
| Haileybury | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 |
| Harrow | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 0 | 1 | 1 | 1 | 13 |
| Harrodian |
0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 3 |
| Highgate | 6 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 5 | 1 | 3 | 34 |
| Latymer | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 3 |
| Marlborough | 0 | 1 | 2 | 0 | 0 | 2 | 0 | 3 | 0 | 0 | 1 | 9 |
| Mill Hill |
0 | 1 | 0 | 4 | 1 | 2 | 5 | 1 | 2 | 0 | 1 | 17 |
| Millfield | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 2 |
| Rugby | 0 | 0 | 4 | 0 | 4 | 0 | 0 | 1 | 0 | 3 | 3 | 15 |
| Shiplake | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| Shrewsbury | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 |
| Stowe | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| St Edward's, Oxford | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 5 |
| St Paul's | 4 | 2 | 3 | 5 | 1 | 2 | 3 | 6 | 4 | 5 | 4 | 39 |
| University College School | 2 | 1 | 2 | 2 | 5 | 0 | 3 | 1 | 1 | 1 | 2 | 20 |
| Westminster | 7 | 2 | 3 | 3 | 6 | 4 | 4 | 2 | 6 | 7 | 6 | 50 |
| Winchester | 3 | 1 | 1 | 0 | 0 | 2 | 1 | 1 | 1 | 0 | 2 | 12 |