Key Facts
| Measure | Average point score per A level entry (DfE 16 to 18 performance data) |
|---|---|
| Data year | 2024/25 (final) |
| Schools ranked | 6 |
| Highest figure | St Mary's Calne, 46.66 (A-) |
| Area covered | Wiltshire, Swindon |
Figures correct at the time of writing. Confirm current fees and deadlines with the school or university directly.
Parents searching for the best private schools in Wiltshire on A level results will find St Mary's Calne ranked first, with an average point score of 46.66 per entry (grade A-), followed by Marlborough College on 45.01 (A-) and Dauntsey's School on 42.34 (B+). Godolphin School sits fourth on 40.92 (B), so the first four schools all average at grade B or above.
Six schools are ranked, all on a single measure: the average point score per A level entry in the Department for Education's sixth form performance tables, where A* = 60, A = 50, B = 40 and C = 30. The grade shown beside each figure is the DfE's fine-grade expression of that average.
Which private schools in Wiltshire have the best A level results?
| Rank | School | Town | A level average point score | Average grade | A level students | Pupils | Day or boarding |
|---|---|---|---|---|---|---|---|
| 1 | St Mary's Calne | Calne | 46.66 | A- | 63 | Co-educational | Day and boarding |
| 2 | Marlborough College | Wiltshire | 45.01 | A- | 218 | Co-educational | Day and boarding |
| 3 | Dauntsey's School | Devizes | 42.34 | B+ | 143 | Co-educational | Day and boarding |
| 4 | Godolphin School | Wiltshire | 40.92 | B | 42 | Co-educational | Day and boarding |
| 5 | Warminster School | Warminster | 33.83 | C+ | 44 | Co-educational | Day and boarding |
| 6 | Stonar School | Wiltshire | 25.41 | C- | 32 | Co-educational | Day and boarding |
Figures run from 46.66 at St Mary's Calne down to 25.41 at Stonar School, a wide spread for six schools, and the table splits into three groups. St Mary's Calne (46.66) and Marlborough College (45.01) share the A- grade at the head of the table. Dauntsey's School (42.34, B+) and Godolphin School (40.92, B) form a second pair, close together and just under the first two.
Warminster School (33.83, C+) and Stonar School (25.41, C-) sit well below the rest, with the largest gap in the table falling between Godolphin School at 40.92 and Warminster School at 33.83. A parent comparing the middle of the table should note that fourth place and fifth place are separated by a full grade band, whilst first and second are separated by a much smaller margin.
Cohort sizes differ sharply, and an average over a large year group tells a different story from an average over a small one. Marlborough College entered 218 A level students and Dauntsey's School 143, whereas St Mary's Calne had 63, Warminster School 44, Godolphin School 42 and Stonar School 32. All six are listed as co-educational and as day and boarding schools, so the ranking offers no split by pupil mix or by boarding status.
Entry points and fees at the ranked Wiltshire schools
Fees and entry points vary widely across the ranking, so the table below sets them side by side for the schools with an admissions guide on this site; each figure comes from the school's own website and carries the academic year it applies to.
| School | Entry points | Day fees per term | Fees year |
|---|---|---|---|
| St Mary's Calne | £11,598 | 2026/27 | |
| Marlborough College | 13+, 14+, 16+ | £17,076 | 2026/27 |
| Dauntsey's School | £9,920 (incl. VAT) | 2026/27 | |
| Warminster School | £9,033 (incl. VAT) | 2026/27 | |
| Stonar School | 7+, 11+, 13+, 16+ | £7,985 | 2026/27 |
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Enquire about this tutorWhich private school in Wiltshire has the highest A level results?
St Mary's Calne, in Calne, has the highest average point score of the six ranked schools, at 46.66 per A level entry, which the DfE expresses as grade A-. It takes the rank 1 position with 63 A level students.
Marlborough College follows at 45.01, also grade A-, and it entered 218 students, the largest A level cohort in the table. That makes its figure an average over a much bigger group than the one behind St Mary's Calne.
Are there girls' or boys' private schools in the Wiltshire ranking?
The ranking contains no school listed as girls' only or boys' only, because all six are recorded as co-educational: St Mary's Calne, Marlborough College, Dauntsey's School, Godolphin School, Warminster School and Stonar School.
A parent who wants a single-sex setting in Wiltshire will therefore need to check each school's current admissions policy directly, since the performance tables used here do not separate results by sex of intake in this ranking.
Which Wiltshire private schools take boarders?
All six ranked schools are listed as day and boarding, so each offers both day places and boarding places according to the data used for this ranking. The list runs from St Mary's Calne at 46.66 to Stonar School at 25.41.
Boarding status therefore does not separate the schools in the table. A family choosing between, for instance, Dauntsey's School in Devizes (42.34, B+) and Warminster School in Warminster (33.83, C+) is comparing two day and boarding schools whose A level averages sit a full grade band apart.
What does the Wiltshire A level ranking leave out?
The ranking covers only schools with A level results in the DfE sixth form performance tables, so a Wiltshire independent school that teaches the IB, or enters few or no pupils for A levels, does not appear among the six.
It also reflects A level entries alone. Stonar School, with 32 students, and Godolphin School, with 42, have small cohorts in which a handful of entries can move an average noticeably, so a parent should read their figures of 25.41 and 40.92 with that in mind and ask each school about its most recent sixth form intake.
How the schools are ranked
The ranking covers every independent school in Wiltshire and Swindon with a published average point score per A level entry in the Department for Education's 16 to 18 performance data, ordered from highest to lowest, with schools on the same figure sharing a rank. The figure counts A level entries only and is not adjusted for pupils' attainment on entry, and many of these schools select by entrance assessment.
The data is the Department for Education's own download from Compare school and college performance, so anyone can reproduce the order from the same file; the data year and source are listed in the key facts above.
Admissions guides for the ranked schools
- St Mary's Calne (ranked 1)
- Marlborough College (ranked 2)
- Dauntsey's School (ranked 3)
- Warminster School (ranked 5)
- Stonar School (ranked 6)
Related guides
- Best private schools in the UK and London by A level results
- Independent school fees compared
- What is a bursary? Private school bursaries explained
- 11+ and 13+ scholarship exams explained
- Boarding schools in the UK
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Frequently asked questions
- Which is the best private school in Wiltshire for A level results?
- On the average point score per A level entry in the latest DfE performance tables, St Mary's Calne ranks first at 46.66, which is grade A-. Marlborough College is second at 45.01, also grade A-, and Dauntsey's School is third at 42.34, grade B+.
- How many private schools in Wiltshire are ranked by A level results?
- Six Wiltshire private schools are ranked: St Mary's Calne, Marlborough College, Dauntsey's School, Godolphin School, Warminster School and Stonar School. Each is ranked on a single measure, its average point score per A level entry in the DfE's sixth form performance tables.
- What does the average point score per A level entry mean?
- Each A level entry earns points: A* = 60, A = 50, B = 40 and C = 30. The score is the average across a school's entries. The grade shown, such as A- for St Mary's Calne at 46.66, is the DfE's fine-grade expression of that average.
- Are there girls' or boys' private schools in the Wiltshire ranking?
- No school in the ranking is listed as girls' only or boys' only. All six, from St Mary's Calne at 46.66 to Stonar School at 25.41, are recorded as co-educational, so the table does not separate single-sex schools.
- Which Wiltshire private schools offer boarding?
- All six ranked schools are listed as day and boarding: St Mary's Calne, Marlborough College, Dauntsey's School, Godolphin School, Warminster School and Stonar School. Families can therefore compare them on A level average point score without boarding status separating them.
- Which Wiltshire private school has the most A level students?
- Marlborough College has the largest A level cohort in the ranking, with 218 students, and its average point score is 45.01 (grade A-). Dauntsey's School follows with 143 students at 42.34, whilst Stonar School has the smallest cohort at 32.
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