Isleworth and Syon School for Boys
#416 of 640 secondary schools in London
#2264 of 4,090 nationally
About Isleworth and Syon School for Boys
Isleworth and Syon School for Boys is a academy secondary located in Isleworth, in the Hounslow local authority of London, England. It caters for Ages 11–18 and is a boys' school. In 2025 it enrolled 951 students. Academies and free schools are state-funded and free to attend, run by academy trusts rather than the local authority.
Its Success Index (England) is 44.2 out of 100, placing it in the lower 50% of secondary schools in England and 416th of 640 ranked secondary schools in London. Its strongest component is a level points per entry (50th percentile), and its weakest is attainment 8 (41th percentile).
Other published figures: pupils on roll 951; capacity filled 97.1%; grade 4+ english & maths 54.5%; ebacc average points 3.70.
There are 13 schools in Isleworth; Isleworth and Syon School for Boys ranks 12th of 13 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary schools across England.
- 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%)43.1
- Grade 5+ in English & maths (15%)38.3%
- A level points per entry (10%)34.1
- Community advantage (fewer pupils on free school meals) (15%)27.8%
The Success Index (England) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Isleworth and Syon School for Boys by the official sources.
- Pupils on roll
- 951
- Number of pupils in the latest school census.
- Free school meals
- 27.8%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 97.1%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 43.1
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 38.3%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 54.5%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 3.70
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 34.1
- Average points per A level entry (A* = 60, E = 10).
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
Schools near Isleworth and Syon School for Boys
Closest schools by straight-line distance, with their Success Index (England).
Nishkam School West London
Osterley · Academy all-through · Ages 4–19
1,491 students · 781 m away
Spring Grove Primary School
Isleworth · Local authority primary · Ages 3–11
239 students · 930 m away
Marlborough Primary School
Isleworth · Local authority primary · Ages 3–11
514 students · 969 m away
The Smallberry Green Primary School
Isleworth · Local authority primary · Ages 3–11
407 students · 1.1 km away
Bolder Academy
Isleworth · Academy secondary · Ages 11–18
909 students · 1.1 km away
Isleworth Town Primary School
Isleworth · Local authority primary · Ages 3–11
727 students · 1.2 km away
The Green School for Girls
Isleworth · Academy secondary · Ages 11–18
872 students · 1.2 km away
The Green School for Boys
Isleworth · Academy secondary · Ages 11–18
721 students · 1.3 km away
Gumley House RC Convent School, FCJ
Isleworth · Academy secondary · Ages 11–18
1,013 students · 1.5 km away
Alexandra Primary School
Hounslow · Local authority primary · Ages 3–11
652 students · 1.5 km away
Similar schools
Academy secondary schools in London with a comparable Pupils on roll.
Sacred Heart Catholic School
London · Academy secondary · Ages 11–18
950 students
Hammersmith Academy
London · Academy secondary · Ages 11–18
954 students
St Michael's Catholic College
London · Academy secondary · Ages 11–18
948 students
Springwest Academy
Feltham · Academy secondary · Ages 11–18
942 students
Sedgehill Academy
London · Academy secondary · Ages 11–18
960 students
Rosedale College
Hayes · Academy secondary · Ages 11–19
940 students
Frequently asked questions
Is Isleworth and Syon School for Boys a good school?
Isleworth and Syon School for Boys has a Success Index (England) of 44.2 out of 100 (Lower 50% of secondary schools in England) and ranks #416 of 640 in London. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Isleworth and Syon School for Boys rank in London?
Isleworth and Syon School for Boys ranks #416 of 640 secondary schools in London and #2264 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Isleworth and Syon School for Boys?
Isleworth and Syon School for Boys had 951 students in 2025.
Is Isleworth and Syon School for Boys a primary school or a secondary school?
Isleworth and Syon School for Boys is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near Isleworth and Syon School for Boys?
There are 10 schools within 15 km of Isleworth and Syon School for Boys; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.