Sir Henry Floyd Grammar School vs St Mary's Church of England School
A head-to-head comparison of two schools in South East, England, 967 m apart, using official English 2025 data. The better value in each row is highlighted.
Sir Henry Floyd Grammar School
Aylesbury · Academy secondary · Ages 11–18
1,353 students
St Mary's Church of England School
Aylesbury · Academy primary · Ages 3–11
448 students
| Measure | Sir Henry Floyd Grammar School Aylesbury, South East | St Mary's Church of England School Aylesbury, South East |
|---|---|---|
| Success Index (England) | 96 Top 5% | 54 Top 50% |
| Region rank | #26 of 679 | #1244 of 2,471 |
| National rank | #75 of 4,090 | #7070 of 15,697 |
| Sector | Academy | Academy |
| Type | Secondary | Primary |
| Year range | Ages 11–18 | Ages 3–11 |
| Students | 1,353 | 448 |
| Pupils on roll | 1,353 | 448 |
| Free school meals | 6.7% | 10.1% |
| Capacity filled | 103.7% | 106.7% |
| KS2 expected standard (RWM) | – | 57% |
| KS2 higher standard (RWM) | – | 12% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 73.2 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 97.2% | – |
| Grade 4+ English & maths | 99.4% | – |
| EBacc average points | 6.74 | – |
| A level points per entry | 41.5 | – |
| town | Aylesbury | Aylesbury |
| region | South East | South East |
| Website | www.sirhenryfloyd.co.uk | www.st-marysaylesbury.bucks.sch.uk/ |
The verdict
- •Sir Henry Floyd Grammar School scores higher on the Success Index (England) (96.1 vs 54.2).
- •Sir Henry Floyd Grammar School is the larger school with 1,353 students compared with 448.
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 Sir Henry Floyd Grammar School better than St Mary's Church of England School?
On the Success Index (England), Sir Henry Floyd Grammar School ranks higher (96.1 vs 54.2 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 Sir Henry Floyd Grammar School and St Mary's Church of England School?
About 967 m in a straight line, between Aylesbury and Aylesbury in South East.
Which has the better Pupils on roll?
Sir Henry Floyd Grammar School: 1,353. St Mary's Church of England School: 448. Number of pupils in the latest school census.
How do Sir Henry Floyd Grammar School and St Mary's Church of England School rank in South East?
Sir Henry Floyd Grammar School is 26th of 679 and St Mary's Church of England School is 1244th of 2,471 among secondary schools in South East on the 2025 Success Index (England).