St Mary's RC Infants School vs St Philomena's Catholic High School for Girls
A head-to-head comparison of two schools in London, England, 294 m apart, using official English 2025 data. The better value in each row is highlighted.
St Mary's RC Infants School
Carshalton · Local authority primary · Ages 3–7
284 students
St Philomena's Catholic High School for Girls
Carshalton · Local authority secondary · Ages 11–18
1,425 students
| Measure | St Mary's RC Infants School Carshalton, London | St Philomena's Catholic High School for Girls Carshalton, London |
|---|---|---|
| Success Index (England) | 99 Top 5% | 83 Top 25% |
| Region rank | #5 of 1,720 | #104 of 640 |
| National rank | #30 of 15,697 | #495 of 4,090 |
| Sector | Local authority | Local authority |
| Type | Primary | Secondary |
| Year range | Ages 3–7 | Ages 11–18 |
| Students | 284 | 1,425 |
| Pupils on roll | 284 | 1,425 |
| Free school meals | 1.8% | 16.7% |
| Capacity filled | 88.2% | 92% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | 57.2 |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | 60% |
| Grade 4+ English & maths | – | 81.3% |
| EBacc average points | – | 5.30 |
| A level points per entry | – | 38.0 |
| town | Carshalton | Carshalton |
| region | London | London |
| Website | www.smcsc.org.uk | www.stphils.org.uk |
The verdict
- •St Mary's RC Infants School scores higher on the Success Index (England) (99.3 vs 83.3).
- •St Philomena's Catholic High School for Girls is the larger school with 1,425 students compared with 284.
- •St Mary's RC Infants School is co-educational and St Philomena's Catholic High School for Girls is girls.
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 RC Infants School better than St Philomena's Catholic High School for Girls?
On the Success Index (England), St Mary's RC Infants School ranks higher (99.3 vs 83.3 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 RC Infants School and St Philomena's Catholic High School for Girls?
About 294 m in a straight line, between Carshalton and Carshalton in London.
Which has the better Pupils on roll?
St Mary's RC Infants School: 284. St Philomena's Catholic High School for Girls: 1,425. Number of pupils in the latest school census.
How do St Mary's RC Infants School and St Philomena's Catholic High School for Girls rank in London?
St Mary's RC Infants School is 5th of 1,720 and St Philomena's Catholic High School for Girls is 104th of 640 among primary schools in London on the 2025 Success Index (England).