North London Grammar School vs St Mary's and St John's CofE School
A head-to-head comparison of two all-through schools in London, England, 1.0 km apart, using official English 2025 data. The better value in each row is highlighted.
North London Grammar School
London · Independent all-through · Ages 4–18
226 students
St Mary's and St John's CofE School
London · Academy all-through · Ages 3–18
1,651 students
| Measure | North London Grammar School London, London | St Mary's and St John's CofE School London, London |
|---|---|---|
| Success Index (England) | 88 Top 10% | 49 Top 50% |
| Region rank | #74 of 640 | #388 of 640 |
| National rank | #337 of 4,090 | #2037 of 4,090 |
| Sector | Independent | Academy |
| Type | All-through | All-through |
| Year range | Ages 4–18 | Ages 3–18 |
| Students | 226 | 1,651 |
| Pupils on roll | 226 | 1,651 |
| Free school meals | – | 28% |
| Capacity filled | 55.9% | 92.8% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 55.5 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 72.1% | – |
| Grade 4+ English & maths | 83.7% | – |
| EBacc average points | 4.87 | – |
| A level points per entry | – | – |
| town | London | London |
| region | London | London |
| Website | www.northlondongrammar.com | www.smsj.barnet.sch.uk |
The verdict
- •North London Grammar School scores higher on the Success Index (England) (87.7 vs 48.6).
- •St Mary's and St John's CofE School is the larger school with 1,651 students compared with 226.
- •North London Grammar School is a independent school while St Mary's and St John's CofE School is a academy 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 North London Grammar School better than St Mary's and St John's CofE School?
On the Success Index (England), North London Grammar School ranks higher (87.7 vs 48.6 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 North London Grammar School and St Mary's and St John's CofE School?
About 1.0 km in a straight line, between London and London in London.
Which has the better Pupils on roll?
North London Grammar School: 226. St Mary's and St John's CofE School: 1,651. Number of pupils in the latest school census.
How do North London Grammar School and St Mary's and St John's CofE School rank in London?
North London Grammar School is 74th of 640 and St Mary's and St John's CofE School is 388th of 640 among all-through schools in London on the 2025 Success Index (England).