Windsor and Maidenhead secondary schools league table 2025
Secondary and all-through schools teaching Key Stages 3 and 4. Ranked by the Success Index (England) from official English data; 19 schools in Windsor and Maidenhead, South East. Rank positions shown on each profile are within England and South East.
- Primary Schools in Windsor and Maidenhead
- State Schools in Windsor and Maidenhead
- Academies & Free Schools in Windsor and Maidenhead
- Independent Schools in Windsor and Maidenhead
- Secondary Schools by Attainment 8 in Windsor and Maidenhead
- Primary Schools by KS2 Results in Windsor and Maidenhead
- Sixth Forms by A Level Results in Windsor and Maidenhead
- Largest Schools in Windsor and Maidenhead
- 196The Marist SchoolAscot · Independent All-through71.9 Attainment 8 · 401 students
- 283Holyport CollegeHolyport · Academy Secondary54.4 Attainment 8 · 660 students
- 380Newlands Girls' SchoolMaidenhead · Academy Secondary55.6 Attainment 8 · 1,226 students
- 477Charters SchoolAscot · Academy Secondary51.0 Attainment 8 · 1,707 students
- 568The Windsor Boys' SchoolWindsor · Academy Secondary47.8 Attainment 8 · 986 students
- 666St Edward's Royal Free Ecumenical Middle School, WindsorWindsor · Local authority Secondary61% KS2 expected standard (RWM) · 482 students
- 763Furze Platt Senior SchoolMaidenhead · Academy Secondary47.5 Attainment 8 · 1,556 students
- 860Desborough CollegeMaidenhead · Academy Secondary45.7 Attainment 8 · 539 students
- 958Windsor Girls' SchoolWindsor · Academy Secondary45.7 Attainment 8 · 775 students
- 1056Trevelyan Middle SchoolWindsor · Academy Secondary63% KS2 expected standard (RWM) · 585 students
- 1154Cox Green SchoolMaidenhead · Academy Secondary45.9 Attainment 8 · 1,139 students
- 1252Dedworth Middle SchoolWindsor · Academy Secondary60% KS2 expected standard (RWM) · 517 students
- 1347Churchmead Church of England (VA) SchoolSlough · Local authority Secondary46.0 Attainment 8 · 681 students
- 1445St Peter's Church of England Middle SchoolWindsor · Academy Secondary58% KS2 expected standard (RWM) · 231 students
- 1531Altwood Church of England SchoolMaidenhead · Academy Secondary40.0 Attainment 8 · 846 students
- 1626St George's SchoolAscot · Independent Secondary35.8 Attainment 8 · 208 students
- 1726St Mary's School AscotAscot · Independent Secondary33.9 Attainment 8 · 401 students
- 1823Eton CollegeWindsor · Independent Secondary24.0 Attainment 8 · 1,348 students
- 1916Claires Court SchoolsMaidenhead · Independent All-through30.5 Attainment 8 · 862 students
| # | School | Sector | Success Index (England) | Key result | Students |
|---|---|---|---|---|---|
| 1 | The Marist School Ascot · All-through · Ages 2–18 | Independent | 96.2 Top 5% | 71.9 Attainment 8 | 401 |
| 2 | Holyport College Holyport · Secondary · Ages 11–19 | Academy | 82.6 Top 25% | 54.4 Attainment 8 | 660 |
| 3 | Newlands Girls' School Maidenhead · Secondary · Ages 11–18 | Academy | 80.2 Top 25% | 55.6 Attainment 8 | 1,226 |
| 4 | Charters School Ascot · Secondary · Ages 11–18 | Academy | 77.2 Top 25% | 51.0 Attainment 8 | 1,707 |
| 5 | The Windsor Boys' School Windsor · Secondary · Ages 13–18 | Academy | 68.4 Top 50% | 47.8 Attainment 8 | 986 |
| 6 | St Edward's Royal Free Ecumenical Middle School, Windsor Windsor · Secondary · Ages 9–13 | Local authority | 66.4 Top 50% | 61% KS2 expected standard (RWM) | 482 |
| 7 | Furze Platt Senior School Maidenhead · Secondary · Ages 11–18 | Academy | 63.1 Top 50% | 47.5 Attainment 8 | 1,556 |
| 8 | Desborough College Maidenhead · Secondary · Ages 11–18 | Academy | 59.6 Top 50% | 45.7 Attainment 8 | 539 |
| 9 | Windsor Girls' School Windsor · Secondary · Ages 13–18 | Academy | 57.7 Top 50% | 45.7 Attainment 8 | 775 |
| 10 | Trevelyan Middle School Windsor · Secondary · Ages 9–13 | Academy | 55.7 Top 50% | 63% KS2 expected standard (RWM) | 585 |
| 11 | Cox Green School Maidenhead · Secondary · Ages 11–18 | Academy | 53.9 Top 50% | 45.9 Attainment 8 | 1,139 |
| 12 | Dedworth Middle School Windsor · Secondary · Ages 9–13 | Academy | 51.5 Top 50% | 60% KS2 expected standard (RWM) | 517 |
| 13 | Churchmead Church of England (VA) School Slough · Secondary · Ages 11–18 | Local authority | 47.2 Lower 50% | 46.0 Attainment 8 | 681 |
| 14 | St Peter's Church of England Middle School Windsor · Secondary · Ages 9–13 | Academy | 44.8 Lower 50% | 58% KS2 expected standard (RWM) | 231 |
| 15 | Altwood Church of England School Maidenhead · Secondary · Ages 11–18 | Academy | 31.1 Lower 50% | 40.0 Attainment 8 | 846 |
| 16 | St George's School Ascot · Secondary · Ages 11–19 | Independent | 25.9 Lower 50% | 35.8 Attainment 8 | 208 |
| 17 | St Mary's School Ascot Ascot · Secondary · Ages 11–18 | Independent | 25.9 Lower 50% | 33.9 Attainment 8 | 401 |
| 18 | Eton College Windsor · Secondary · Ages 12–19 | Independent | 23.0 Lower 50% | 24.0 Attainment 8 | 1,348 |
| 19 | Claires Court Schools Maidenhead · All-through · Ages 2–18 | Independent | 16.3 Lower 50% | 30.5 Attainment 8 | 862 |
The Marist School in Ascot leads the 2025 list of secondary schools in Windsor and Maidenhead with a Success Index (England) of 96.2. Of the 19 schools shown, 12 are academy, 5 are independent, 2 are local authority.
For the full picture see the wider South East secondary schools league table, every school on the Windsor and Maidenhead page, or the comparison tool to put a shortlist side by side.
Free academic assessment
Is your child on track for their SATs and GCSEs?
Success Tutoring offers personalised English and maths tutoring mapped to the National Curriculum. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
What is the best secondary school in Windsor and Maidenhead?
The Marist School in Ascot, South East ranks first among secondary schools in Windsor and Maidenhead with a Success Index (England) of 96.2 out of 100 (Pupils on roll: 401).
How are secondary schools in Windsor and Maidenhead 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.