Claremont High School vs Mount Stewart Junior School
A head-to-head comparison of two schools in London, England, 849 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
Mount Stewart Junior School
Harrow · Academy primary · Ages 7–11
| Measure | Claremont High School Harrow, London | Mount Stewart Junior School Harrow, London |
|---|---|---|
| Success Index (England) | 79 Top 25% | – Not rated |
| Region rank | #141 of 640 | – |
| National rank | #664 of 4,090 | – |
| Sector | Academy | Academy |
| Type | Secondary | Primary |
| Year range | Ages 11–18 | Ages 7–11 |
| Students | 1,695 | – |
| Pupils on roll | 1,695 | – |
| Free school meals | 19.9% | – |
| Capacity filled | 100.9% | – |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 54.8 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 61% | – |
| Grade 4+ English & maths | 75.7% | – |
| EBacc average points | 5.31 | – |
| A level points per entry | 36.9 | – |
| town | Harrow | Harrow |
| region | London | London |
| Website | www.claremont-high.org.uk | www.tmss.org.uk |
The verdict
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 Mount Stewart Junior School?
The two schools are very close on the Success Index (England). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Claremont High School and Mount Stewart Junior School?
About 849 m in a straight line, between Harrow and Harrow in London.
How do Claremont High School and Mount Stewart Junior School rank in London?
Claremont High School is 141st of 640 and Mount Stewart Junior School is unranked among secondary schools in London on the 2025 Success Index (England).