Slough grammar schools league table 2025
State schools with selective admissions. Ranked by the Success Index (England) from official English data; 6 schools in Slough, South East. Rank positions shown on each profile are within England and South East.
- 198Langley Grammar SchoolLangley · Academy Secondary77.6 Attainment 8 · 1,284 students
- 297Upton Court Grammar SchoolSlough · Academy Secondary79.9 Attainment 8 · 1,155 students
- 397Herschel Grammar SchoolSlough · Academy Secondary75.8 Attainment 8 · 1,062 students
- 497St Bernard's Catholic Grammar SchoolSlough · Local authority Secondary77.3 Attainment 8 · 1,178 students
- 592Long Close SchoolSlough · Independent All-through60.4 Attainment 8 · 183 students
- 692Al-Madani Independent Grammar SchoolSlough · Independent Secondary58.8 Attainment 8 · 94 students
| # | School | Sector | Success Index (England) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Langley Grammar School Langley · Secondary · Ages 11–18 | Academy | 97.9 Top 5% | 77.6 Attainment 8 | 1,284 |
| 2 | Upton Court Grammar School Slough · Secondary · Ages 11–18 | Academy | 97.0 Top 5% | 79.9 Attainment 8 | 1,155 |
| 3 | Herschel Grammar School Slough · Secondary · Ages 11–18 | Academy | 96.7 Top 5% | 75.8 Attainment 8 | 1,062 |
| 4 | St Bernard's Catholic Grammar School Slough · Secondary · Ages 11–18 | Local authority | 96.6 Top 5% | 77.3 Attainment 8 | 1,178 |
| 5 | Long Close School Slough · All-through · Ages 2–16 | Independent | 92.4 Top 5% | 60.4 Attainment 8 | 183 |
| 6 | Al-Madani Independent Grammar School Slough · Secondary · Ages 11–16 | Independent | 91.6 Top 10% | 58.8 Attainment 8 | 94 |
Langley Grammar School in Langley leads the 2025 list of grammar schools in Slough with a Success Index (England) of 97.9. Of the 6 schools shown, 3 are academy, 2 are independent, 1 are local authority.
For the full picture see the wider South East grammar schools league table, every school on the Slough page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best grammar school in Slough?
Langley Grammar School in Langley, South East ranks first among grammar schools in Slough with a Success Index (England) of 97.9 out of 100 (Pupils on roll: 1,284).
How are grammar schools in Slough 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.