Other independent school · independent

St Mary's School Ascot

Girls · ages 11–18 · with sixth form · Roman CatholicWindsor and Maidenhead, South East · Ascot SL5 9JFSchool website
Pupils on roll
401of 405 places
Free school meals
Year 11 cohort 2025
61
Ofsted
Not covered by Ofsted school inspections
What the data says

The Department for Education has not published where St Mary's School Ascot’s Year 11 leavers went next (destination measures are not published for independent schools), so this page relies on the school’s results and subjects.

Art and Design is unusually popular at GCSE: 36% of the year group took it, against 7% of pupils across England.

A level grades average A-, well above the England average of B-; 41% of students achieved AAB or better including two facilitating subjects (England 18%). The largest A level subjects are Mathematics, English Literature and History of Art.

Nearly everyone studies a modern language to GCSE (French, Spanish, German entries add up to 100% of the cohort), which is rare outside selective and independent schools.

Where pupils went after Year 11

Destinations of the 2023 Year 11 leavers, measured the following year: the share in a sustained place for at least two terms. Compared with all state-funded schools in Windsor and Maidenhead and England.

The Department for Education has not published destination figures for this school (new school, small cohort or not a state-funded school).

Where students went after sixth form

Destinations of students who finished 16–18 study in 2023, measured the following year.

No published destinations for sixth-form leavers yet.

GCSE results 2025

MeasureSt Mary's School AscotWindsor and MaidenheadEngland
Attainment 8 (average points per pupil)33.947.346.1
Grade 5 or above in English and maths0%49%45%
Grade 4 or above in English and maths0%68%65%
Entered the English Baccalaureate subjects0%39%41%
EBacc average point score1.694.234.09
Disadvantaged pupils in the cohort17%28%
Attainment 8 — disadvantaged pupils33.634.9
Attainment 8 — other pupils50.050.4
Pupils with high prior attainment (Key Stage 2)
English as an additional language14%19%

Progress 8 is not available for 2025 and 2026: these cohorts had no Key Stage 2 tests in 2020 and 2021, so there is no baseline. Attainment 8 shows results without taking pupils’ starting points into account.

Subjects taken at GCSE

Entries in 2025 as a share of the Year 11 cohort, and the share of entries graded 7–9 and 4–9, compared with all entries in England.

SubjectEntriesShare of cohortEnglandGrades 7–9EnglandGrades 4–9
Religious Studies61100%31%95%32%100%
French4675%18%96%29%100%
Art and Design2236%7%100%24%100%
Spanish1931%19%100%27%100%
Drama1626%7%100%27%100%
Computer Science1525%13%100%30%100%
Geography1423%41%100%25%100%
Classical Civilisation1220%1%83%40%100%
Latin813%1%100%74%100%
Italian711%0%100%53%100%
German610%5%100%33%100%
Chinese58%1%75%
Photography47%6%19%
Russian35%0%87%
Portuguese35%0%50%
Classical Greek12%0%92%

Technical awards and other Key Stage 4 qualifications

SubjectEntriesShare of cohortEngland
Music performance: Group12%

A levels and other level 3 courses

MeasureSt Mary's School AscotWindsor and MaidenheadEngland
Students at the end of 16–18 study113
— of whom A level students52871261,341
Average A level gradeA-C+B-
Average points per A level entry47.2034.3335.00
Average grade, best 3 A levelsA-C+B-
AAB or better with two facilitating subjects41%16%18%
Average grade, applied general courses
Average grade, T levels

A level subjects

Entries as a share of A level students, compared with the share across England.

SubjectEntriesShare of cohortEngland
Mathematics1937%31%
English Literature1631%11%
History of Art1529%0%
Economics1325%13%
Chemistry1019%17%
Psychology1019%23%
Biology1019%20%
Politics917%6%
Fine Art612%3%
Spanish2%
Classical Civilisation1%
Latin0%
Further Mathematics5%
Music0%
Physics12%
Religious Studies4%
Russian0%
Italian0%
Computer Science5%
Drama2%
French1%
Geography10%
History13%

Applied, technical and other level 3 courses

SubjectQualificationEntriesShare of cohortEngland
Study SkillsExtended Project (Diploma)1325%

Other secondary schools in Windsor and Maidenhead

Charters School

Academy converter · sixth form · 1,707 pupils

91% stayed in education · Attainment 8 51.0

Cox Green School

Academy converter · sixth form · 1,139 pupils

85% stayed in education · Attainment 8 45.9

Desborough College

Academy sponsor led · sixth form · 539 pupils

93% stayed in education · Attainment 8 45.7

Sources: Department for Education school and college performance tables 2024/2025 (Key Stage 4 and 16–18 results, subject entries, destination measures for 2023 leavers); Get Information About Schools register as at 19 September 2026; Ofsted management information as at 31 August 2026. Small numbers are suppressed by DfE and shown as “—”. How to read these figures.