St Mary's and St John's CofE School

School overview

St Mary's and St John's CofE School is an all-through school serving London, Barnet, classified by the DfE as a converter academy with a Church of England religious character. It has 1,649 pupils aged 3 to 18 on roll. At its most recent graded inspection, Ofsted rated St Mary's and St John's CofE School 'Good'. In the most recent Key Stage 2 SATs, 76% of pupils reached the expected standard in reading, writing and maths combined — well above the national average of 61%. That marks an improvement of 4.0 percentage points in the proportion reaching the expected standard on the previous year. At GCSE, the school's average Attainment 8 score was 50.7, above the national average of 46. On our composite score, St Mary's and St John's CofE School ranks among the top 8% of primary schools in England for its primary (KS2) results. For its secondary (KS4) results, it ranks in the top 26% of secondary schools nationally.

Pupils achieved an average scaled score of 109 in reading and 109 in maths (national averages are about 105 and 104). 22% reached the higher standard across all three subjects (around 8% do so nationally). At Key Stage 4, 51% of pupils achieved a grade 5 or above in both English and maths, above the national average of about 45%. St Mary's and St John's CofE School was not oversubscribed for September 2026: all 49 families who put it first were offered a place. When comparing schools, it is still worth visiting in person to see whether the atmosphere and approach suit your child. This overview is generated automatically from the latest published DfE performance tables and Ofsted data; figures are rounded, and you can check the originals via the official links above.