St Mary's Church of England Primary School, Thornbury vs The Castle School
A head-to-head comparison of two schools in South West, England, 416 m apart, using official English 2025 data. The better value in each row is highlighted.
St Mary's Church of England Primary School, Thornbury
Bristol · Local authority primary · Ages 4–11
197 students
The Castle School
Bristol · Academy secondary · Ages 11–18
1,416 students
| Measure | St Mary's Church of England Primary School, Thornbury Bristol, South West | The Castle School Bristol, South West |
|---|---|---|
| Success Index (England) | 23 Lower 50% | 76 Top 25% |
| Region rank | #1510 of 1,695 | #58 of 402 |
| National rank | #13601 of 15,697 | #744 of 4,090 |
| Sector | Local authority | Academy |
| Type | Primary | Secondary |
| Year range | Ages 4–11 | Ages 11–18 |
| Students | 197 | 1,416 |
| Pupils on roll | 197 | 1,416 |
| Free school meals | 11.2% | 14.6% |
| Capacity filled | 93.8% | 81.7% |
| KS2 expected standard (RWM) | 38% | – |
| KS2 higher standard (RWM) | 0% | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | – | 52.4 |
| Progress 8 | – | – |
| Grade 5+ English & maths | – | 58.3% |
| Grade 4+ English & maths | – | 74.9% |
| EBacc average points | – | 4.93 |
| A level points per entry | – | 33.8 |
| town | Bristol | Bristol |
| region | South West | South West |
| Website | www.stmarysthornbury.com | www.thecastleschool.org.uk |
The verdict
- •The Castle School scores higher on the Success Index (England) (76.2 vs 22.6).
- •The Castle School is the larger school with 1,416 students compared with 197.
- •St Mary's Church of England Primary School, Thornbury is a local authority school while The Castle 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.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is St Mary's Church of England Primary School, Thornbury better than The Castle School?
On the Success Index (England), The Castle School ranks higher (76.2 vs 22.6 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 St Mary's Church of England Primary School, Thornbury and The Castle School?
About 416 m in a straight line, between Bristol and Bristol in South West.
Which has the better Pupils on roll?
St Mary's Church of England Primary School, Thornbury: 197. The Castle School: 1,416. Number of pupils in the latest school census.
How do St Mary's Church of England Primary School, Thornbury and The Castle School rank in South West?
St Mary's Church of England Primary School, Thornbury is 1510th of 1,695 and The Castle School is 58th of 402 among primary schools in South West on the 2025 Success Index (England).