Exam results at Our Lady of Sion are always strong, but class and year group sizes are much smaller than in most schools. This makes them difficult to compare statistically both nationally and locally.
GCSE Key Stage 4 Results
|% of all Students||2015||2016||2017|
|A*-C including English and Maths||94||100||98|
|5A* -C including English and Maths||94||100||98|
|Achieving Expected progress in English||89||91||94|
|Achieving Expected progress in Maths||96||98||98|