JCoSS vs Mount House School
A head-to-head comparison of two secondary schools in London, England, 1.6 km apart, using official English 2025 data. The better value in each row is highlighted.
JCoSS
New Barnet · Local authority secondary · Ages 11–19
1,356 students
Mount House School
Barnet · Independent secondary · Ages 11–18
225 students
| Measure | JCoSS New Barnet, London | Mount House School Barnet, London |
|---|---|---|
| Success Index (England) | 94 Top 5% | 9 Lower 50% |
| Region rank | #34 of 640 | #623 of 640 |
| National rank | #156 of 4,090 | #3994 of 4,090 |
| Sector | Local authority | Independent |
| Type | Secondary | Secondary |
| Year range | Ages 11–19 | Ages 11–18 |
| Students | 1,356 | 225 |
| Pupils on roll | 1,356 | 225 |
| Free school meals | 4.3% | – |
| Capacity filled | 99.7% | 64.3% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 60.9 | 24.2 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 76.8% | 0% |
| Grade 4+ English & maths | 88.4% | 0% |
| EBacc average points | 4.92 | 2.17 |
| A level points per entry | 43.7 | 28.2 |
| town | New Barnet | Barnet |
| region | London | London |
| Website | www.jcoss.org | www.mounthouse.org.uk |
The verdict
- •JCoSS scores higher on the Success Index (England) (93.8 vs 8.5).
- •JCoSS is the larger school with 1,356 students compared with 225.
- •JCoSS is a local authority school while Mount House School is a independent school, so fees and admission rules differ.
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 JCoSS better than Mount House School?
On the Success Index (England), JCoSS ranks higher (93.8 vs 8.5 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 JCoSS and Mount House School?
About 1.6 km in a straight line, between New Barnet and Barnet in London.
Which has the better Pupils on roll?
JCoSS: 1,356. Mount House School: 225. Number of pupils in the latest school census.
How do JCoSS and Mount House School rank in London?
JCoSS is 34th of 640 and Mount House School is 623rd of 640 among secondary schools in London on the 2025 Success Index (England).