St Mary's Catholic Primary School, Isleworth vs The Blue School CofE Primary
A head-to-head comparison of two primary schools in London, England, 148 m apart, using official English 2025 data. The better value in each row is highlighted.
St Mary's Catholic Primary School, Isleworth
Isleworth · Local authority primary · Ages 3–11
399 students
The Blue School CofE Primary
Isleworth · Local authority primary · Ages 3–11
431 students
| Measure | St Mary's Catholic Primary School, Isleworth Isleworth, London | The Blue School CofE Primary Isleworth, London |
|---|---|---|
| Success Index (England) | 75 Top 25% | 92 Top 5% |
| Region rank | #510 of 1,720 | #91 of 1,720 |
| National rank | #2955 of 15,697 | #627 of 15,697 |
| Sector | Local authority | Local authority |
| Type | Primary | Primary |
| Year range | Ages 3–11 | Ages 3–11 |
| Students | 399 | 431 |
| Pupils on roll | 399 | 431 |
| Free school meals | 13.1% | 9% |
| Capacity filled | 95% | 92.1% |
| KS2 expected standard (RWM) | 76% | 88% |
| KS2 higher standard (RWM) | 11% | 18% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | – |
| Grade 4+ English & maths | – | – |
| EBacc average points | – | – |
| A level points per entry | – | – |
| town | Isleworth | Isleworth |
| region | London | London |
| Website | www.smi.hounslow.sch.uk | www.theblueschool.com/ |
The verdict
- •The Blue School CofE Primary scores higher on the Success Index (England) (91.7 vs 75.2).
- •The Blue School CofE Primary does better on ks2: reading, writing & maths expected standard (88% vs 76%).
- •The Blue School CofE Primary does better on ks2: higher standard (18% vs 11%).
- •The Blue School CofE Primary is the larger school with 431 students compared with 399.
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 St Mary's Catholic Primary School, Isleworth better than The Blue School CofE Primary?
On the Success Index (England), The Blue School CofE Primary ranks higher (91.7 vs 75.2 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 St Mary's Catholic Primary School, Isleworth and The Blue School CofE Primary?
About 148 m in a straight line, between Isleworth and Isleworth in London.
Which has the better Pupils on roll?
St Mary's Catholic Primary School, Isleworth: 399. The Blue School CofE Primary: 431. Number of pupils in the latest school census.
How do St Mary's Catholic Primary School, Isleworth and The Blue School CofE Primary rank in London?
St Mary's Catholic Primary School, Isleworth is 510th of 1,720 and The Blue School CofE Primary is 91st of 1,720 among primary schools in London on the 2025 Success Index (England).