Isleworth and Syon School for Boys vs Sacred Heart Catholic School
A head-to-head comparison of two secondary schools in London, England, 17 km apart, using official English 2025 data. The better value in each row is highlighted.
Isleworth and Syon School for Boys
Isleworth · Academy secondary · Ages 11–18
951 students
Sacred Heart Catholic School
London · Academy secondary · Ages 11–18
950 students
| Measure | Isleworth and Syon School for Boys Isleworth, London | Sacred Heart Catholic School London, London |
|---|---|---|
| Success Index (England) | 44 Lower 50% | 70 Top 50% |
| Region rank | #416 of 640 | #224 of 640 |
| National rank | #2264 of 4,090 | #1042 of 4,090 |
| Sector | Academy | Academy |
| Type | Secondary | Secondary |
| Year range | Ages 11–18 | Ages 11–18 |
| Students | 951 | 950 |
| Pupils on roll | 951 | 950 |
| Free school meals | 27.8% | 50.7% |
| Capacity filled | 97.1% | 126.7% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 43.1 | 58.0 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 38.3% | 69.8% |
| Grade 4+ English & maths | 54.5% | 87.6% |
| EBacc average points | 3.70 | 5.29 |
| A level points per entry | 34.1 | 36.7 |
| town | Isleworth | London |
| region | London | London |
| Website | www.isleworthsyon.org/ | www.sacredheart.southwark.sch.uk |
The verdict
- •Sacred Heart Catholic School scores higher on the Success Index (England) (69.5 vs 44.2).
- •Isleworth and Syon School for Boys is the larger school with 951 students compared with 950.
- •Isleworth and Syon School for Boys is boys and Sacred Heart Catholic School is co-educational.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Isleworth and Syon School for Boys better than Sacred Heart Catholic School?
On the Success Index (England), Sacred Heart Catholic School ranks higher (69.5 vs 44.2 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Isleworth and Syon School for Boys and Sacred Heart Catholic School?
About 17 km in a straight line, between Isleworth and London in London.
Which has the better Pupils on roll?
Isleworth and Syon School for Boys: 951. Sacred Heart Catholic School: 950. Number of pupils in the latest school census.
How do Isleworth and Syon School for Boys and Sacred Heart Catholic School rank in London?
Isleworth and Syon School for Boys is 416th of 640 and Sacred Heart Catholic School is 224th of 640 among secondary schools in London on the 2025 Success Index (England).