Claremont High School vs St Gregory's Catholic Science College
A head-to-head comparison of two secondary schools in London, England, 757 m apart, using official English 2025 data. The better value in each row is highlighted.
Claremont High School
Harrow · Academy secondary · Ages 11–18
1,695 students
St Gregory's Catholic Science College
Harrow · Academy secondary · Ages 11–18
1,175 students
| Measure | Claremont High School Harrow, London | St Gregory's Catholic Science College Harrow, London |
|---|---|---|
| Success Index (England) | 79 Top 25% | 89 Top 10% |
| Region rank | #141 of 640 | #67 of 640 |
| National rank | #664 of 4,090 | #312 of 4,090 |
| Sector | Academy | Academy |
| Type | Secondary | Secondary |
| Year range | Ages 11–18 | Ages 11–18 |
| Students | 1,695 | 1,175 |
| Pupils on roll | 1,695 | 1,175 |
| Free school meals | 19.9% | 12.5% |
| Capacity filled | 100.9% | 111.1% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 54.8 | 60.6 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 61% | 67.6% |
| Grade 4+ English & maths | 75.7% | 85.4% |
| EBacc average points | 5.31 | 5.81 |
| A level points per entry | 36.9 | 38.2 |
| town | Harrow | Harrow |
| region | London | London |
| Website | www.claremont-high.org.uk | www.stgregorys.harrow.sch.uk |
The verdict
- •St Gregory's Catholic Science College scores higher on the Success Index (England) (88.5 vs 78.7).
- •Claremont High School is the larger school with 1,695 students compared with 1,175.
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 Claremont High School better than St Gregory's Catholic Science College?
On the Success Index (England), St Gregory's Catholic Science College ranks higher (88.5 vs 78.7 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 Claremont High School and St Gregory's Catholic Science College?
About 757 m in a straight line, between Harrow and Harrow in London.
Which has the better Pupils on roll?
Claremont High School: 1,695. St Gregory's Catholic Science College: 1,175. Number of pupils in the latest school census.
How do Claremont High School and St Gregory's Catholic Science College rank in London?
Claremont High School is 141st of 640 and St Gregory's Catholic Science College is 67th of 640 among secondary schools in London on the 2025 Success Index (England).