St Mary's School Ascot
St Mary's Road, South Ascot, Ascot, SL5 9JF
- Phase
- Independent schools
- School type
- Other independent school
- Ages
- 11 to 18
- Gender
- Girls
- Religious character
- Roman Catholic
- Headteacher
- Mrs Danuta Staunton
- Boarding
- Boarding school
- Constituency
- Windsor
- Setting
- Urban: Nearer to a major town or city
- Capacity
- 405
- Pupils on roll
- 401
- URN
- 110120
- Local authority
- Windsor and Maidenhead
- Website
- School website
- Telephone
- 01344296611
About this school
St Mary's School Ascot is a Roman Catholic girls' independent school in Ascot. It teaches children aged 11 to 18 and has 401 pupils on roll.
Ofsted has not yet inspected St Mary's School Ascot under its current framework. Where the Department for Education has published them, its results and pupil characteristics appear below. Seeing a school for yourself shows what no page can, so arrange a visit before you apply.
Ofsted judgement
St Mary's School Ascot has not been inspected by Ofsted yet. It opened in its current form in January 1932, and new or converted schools usually wait a few years for their first inspection.
Exam results
Key stage 4 (GCSEs)
| Measure | 2022/23 | 2023/24 | 2024/25 |
|---|---|---|---|
| Pupils at the end of key stage 4 | 57 | 64 | 61 |
| Attainment 8 score | 31.8 | 34.5 | 33.9 |
| Progress 8 score | - | - | - |
| Grade 5 or above in English and maths | 0% | 1.6% | 0% |
| Grade 4 or above in English and maths | 0% | 1.6% | 0% |
| Entered the English Baccalaureate | 0% | 1.6% | 0% |
| English Baccalaureate average point score | 1.4 | 1.8 | 1.7 |
Progress 8 is paused nationally for the 2024/25 and 2025/26 school years. Those pupils sat no key stage 2 tests during the Covid pandemic, so there is no starting point to measure progress from. A blank figure here is not missing school data.
Trends over time
How St Mary's School Ascot has moved over recent years against the local and national picture. Every figure is shown in the table beneath its chart.
| Year | This school | Windsor and Maidenhead average | England average |
|---|---|---|---|
| 2022/23 | 31.8 | 37.5 | 39.8 |
| 2023/24 | 34.5 | 39.6 | 39.5 |
| 2024/25 | 33.9 | 35.9 | 39 |
Department for Education KS4 performance data, published school results.
| Year | This school |
|---|---|
| 2022/23 | 393 |
| 2023/24 | 398 |
| 2024/25 | 384 |
School census, spring count each academic year.
School context
From the 2024/25 school census and absence figures.
- Free school meals (last 6 years)
- 0%
- Pupils with an EHC plan
- 0
- Pupils on SEN support
- 110
Location
Nearby schools
-
Heathermount School0.8 miles
Special schools · Ascot
-
St George's School1.0 miles
Independent schools
-
The Marist School1.1 miles
Independent schools · Ascot
-
Sunningdale School1.3 miles
Independent schools · Ascot
-
Fernways School1.6 miles
Special schools
Other schools in Ascot
- Heathfield School Independent schools
- LVS Ascot Independent schools
- Papplewick School Independent schools
- Sunningdale School Independent schools
- The Marist School Independent schools
- Ascot Heath Primary School Primary
- Cheapside CofE Primary School Primary
- Holy Trinity CofE Primary School, Sunningdale Primary
- South Ascot Village Primary School Primary
- St Francis Catholic Primary School, South Ascot Primary
- St Michael's CofE Primary School, Sunninghill Primary
- Charters School Secondary
Common questions
- What ages does St Mary's School Ascot teach?
- St Mary's School Ascot teaches children aged 11 to 18. It is an independent school in Ascot.
- Who is the headteacher of St Mary's School Ascot?
- The headteacher of St Mary's School Ascot is Mrs Danuta Staunton, as recorded in the Department for Education's register of schools.
- Has St Mary's School Ascot been inspected?
- Ofsted has not inspected St Mary's School Ascot under its current framework, so no current judgement is shown. That is common for newer schools and is not a mark against a school.
- How many pupils are at St Mary's School Ascot?
- St Mary's School Ascot has 401 pupils on roll, teaching children aged 11 to 18.
- Is St Mary's School Ascot full?
- St Mary's School Ascot has capacity for 405 pupils and 401 on roll (99%), so it is close to full. Places are allocated through the local authority's admissions process, so capacity alone does not tell you whether a place is available.
- Is St Mary's School Ascot a faith school?
- Yes. St Mary's School Ascot is designated Roman Catholic.
- How have St Mary's School Ascot's results changed over recent years?
- Its Attainment 8 score was 31.8 in 2022/23 and 33.9 in 2024/25. The year-by-year figures, alongside local and national averages, are charted in the trends section on this page.
- What are St Mary's School Ascot's exam results?
- Where the Department for Education has published them, St Mary's School Ascot's key stage results are shown in the results section on this page, with the last three years so you can see the trend rather than a single year.
School details come from the Department for Education's Get Information About Schools register. Inspection outcomes come from Ofsted, and exam results from the Department for Education's school performance service. This page was last updated on 24 July 2026.