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St Mary's School is an all-through independent school in Gerrards Cross, South East. It has not yet been rated by students on y.school. Be the first to rate this independent school and help other students and parents understand what the school experience is really like.
In terms of academic performance, St Mary's School has an average A-Level grade of B-.
The school has 0% of pupils eligible for free school meals.
After leaving St Mary's School, student destinations include 62% going on to university and 3% entering apprenticeships.
All student scores on y.school are calculated from anonymous ratings using a transparent, deterministic methodology. Scores are freshness-weighted (18-month half-life) and include confidence tiers based on sample size, diversity, and consistency. For full details, see the y.school methodology.
The school's Attainment 8 score is 38.7. Attainment 8 measures the average achievement of students across 8 qualifications including English, Maths, three EBacc subjects, and three open group qualifications.
Students at St Mary's School achieve an average A-Level grade of B-. This metric covers all A-Level and equivalent qualifications taken at the school.
0% of pupils are eligible for free school meals, which is used as a proxy for socioeconomic disadvantage.
47% of pupils receive SEN (Special Educational Needs) support or have an Education, Health and Care plan.
After leaving St Mary's School, 62% go on to university and 3% enter apprenticeships.
Source: Department for Education, Ofsted. Data shown for context only — does not influence the Student Score.
Data last updated: May 2026
Crime Nearby
40/mo
Within ~1 mile (Police.uk)
Violent Crime
6/mo
15% of total
Air Quality
Good
NO₂: 11.7 µg/m³ · PM2.5: 7.3
Bus Stops
5
Within 500m
Nearest Station
Gerrards Cross Rail Station
0.5km away
Source: Police.uk, DEFRA UK-Air, DfT NaPTAN. Based on the school's location — actual conditions may vary.
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Other schools in the Gerrards Cross area
Independent school data note
Independent schools often sit IGCSEs, which DfE performance tables don't count. Because the resulting Attainment 8 / Progress 8 / EBacc figures systematically understate actual results, they are not shown for independent schools. A-Level and destination data is unaffected and shown below.
5.1
Average
/ 10
Data Score
Computed from 6 government data points. Not based on student reviews.
Source: Department for Education / Ofsted. Data shown for context only — does not influence the Student Score. Small schools may show extreme percentages due to small sample sizes.