Wiltshire independent schools league table 2025
Fee-paying schools, scored only where they publish results in the performance tables. Ranked by the Success Index (England) from official English data; 8 schools in Wiltshire, South West. Rank positions shown on each profile are within England and South West.
- 175Oneschool Global Uk Salisbury CampusSalisbury · Independent All-through50.9 Attainment 8 · 181 students
- 230St Marys Calne and St Margarets PrepCalne · Independent All-through37.9 Attainment 8 · 449 students
- 322Dauntsey's SchoolDevizes · Independent Secondary29.4 Attainment 8 · 835 students
- 422Marlborough CollegeWiltshire · Independent Secondary23.3 Attainment 8 · 1,003 students
- 521Chafyn-GodolphinSalisbury · Independent All-through24.6 Attainment 8 · 255 students
- 616Warminster SchoolWarminster · Independent All-through31.8 Attainment 8 · 433 students
- 78Stonar SchoolWiltshire · Independent All-through27.6 Attainment 8 · 434 students
- 86Leehurst Swan SchoolSalisbury · Independent All-through23.3 Attainment 8 · 183 students
| # | School | Sector | Success Index (England) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Oneschool Global Uk Salisbury Campus Salisbury · All-through · Ages 7–18 | Independent | 75.1 Top 25% | 50.9 Attainment 8 | 181 |
| 2 | St Marys Calne and St Margarets Prep Calne · All-through · Ages 2–19 | Independent | 30.3 Lower 50% | 37.9 Attainment 8 | 449 |
| 3 | Dauntsey's School Devizes · Secondary · Ages 11–18 | Independent | 22.3 Lower 50% | 29.4 Attainment 8 | 835 |
| 4 | Marlborough College Wiltshire · Secondary · Ages 13–19 | Independent | 21.8 Lower 50% | 23.3 Attainment 8 | 1,003 |
| 5 | Chafyn-Godolphin Salisbury · All-through · Ages 0–19 | Independent | 20.5 Lower 50% | 24.6 Attainment 8 | 255 |
| 6 | Warminster School Warminster · All-through · Ages 2–19 | Independent | 16.0 Lower 50% | 31.8 Attainment 8 | 433 |
| 7 | Stonar School Wiltshire · All-through · Ages 2–18 | Independent | 7.5 Lower 50% | 27.6 Attainment 8 | 434 |
| 8 | Leehurst Swan School Salisbury · All-through · Ages 4–16 | Independent | 5.9 Lower 50% | 23.3 Attainment 8 | 183 |
Oneschool Global Uk Salisbury Campus in Salisbury leads the 2025 list of independent schools in Wiltshire with a Success Index (England) of 75.1. Of the 8 schools shown, 8 are independent.
For the full picture see the wider South West independent schools league table, every school on the Wiltshire page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best independent school in Wiltshire?
Oneschool Global Uk Salisbury Campus in Salisbury, South West ranks first among independent schools in Wiltshire with a Success Index (England) of 75.1 out of 100 (Pupils on roll: 181).
How are independent schools in Wiltshire ranked?
Each school's Success Index (England) combines 9 factors: ks2: reading, writing & maths expected standard (35%), ks2: higher standard (20%), ks2: reading progress (10%), ks2: maths progress (10%), progress 8 (20%), attainment 8 (30%), grade 5+ in english & maths (15%), a level points per entry (10%), community advantage (fewer pupils on free school meals) (15%). Each factor is a percentile against schools of the same type across England. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official English data (DfE – Get Information About Schools; DfE – Compare school and college performance). Independent schools rarely appear in the performance tables, so most receive no attainment components and no score.