Boston High School
Academy converter · sixth form · 837 pupils
95% stayed in education · Attainment 8 58.8
Other independent school · independent
Castles Education
- Pupils on roll
- 93of 145 places
- Free school meals
- —
- Year 11 cohort 2025
- 21
- Ofsted
- Not covered by Ofsted school inspections
What the data says
The Department for Education has not published where Castles Education’s Year 11 leavers went next (destination measures are not published for independent schools), so this page relies on the school’s results and subjects.
Where pupils went after Year 11
Destinations of the 2023 Year 11 leavers, measured the following year: the share in a sustained place for at least two terms. Compared with all state-funded schools in Lincolnshire and England.
The Department for Education has not published destination figures for this school (new school, small cohort or not a state-funded school).
GCSE results 2025
| Measure | Castles Education | Lincolnshire | England |
|---|---|---|---|
| Attainment 8 (average points per pupil) | 6.0 | 45.1 | 46.1 |
| Grade 5 or above in English and maths | 0% | 42% | 45% |
| Grade 4 or above in English and maths | 14% | 63% | 65% |
| Entered the English Baccalaureate subjects | 0% | 37% | 41% |
| EBacc average point score | 0.31 | 3.98 | 4.09 |
| Disadvantaged pupils in the cohort | — | 27% | 28% |
| Attainment 8 — disadvantaged pupils | — | 33.8 | 34.9 |
| Attainment 8 — other pupils | — | 49.2 | 50.4 |
| Pupils with high prior attainment (Key Stage 2) | — | — | — |
| English as an additional language | — | 12% | 19% |
Progress 8 is not available for 2025 and 2026: these cohorts had no Key Stage 2 tests in 2020 and 2021, so there is no baseline. Attainment 8 shows results without taking pupils’ starting points into account.
Subjects taken at GCSE
Entries in 2025 as a share of the Year 11 cohort, and the share of entries graded 7–9 and 4–9, compared with all entries in England.
| Subject | Entries | Share of cohort | England | Grades 7–9 | England | Grades 4–9 |
|---|---|---|---|---|---|---|
| Biology | 10 | 48% | 23% | 0% | 45% | 30% |
| Mathematics | 9 | 43% | 88% | 0% | 22% | 44% |
| English Language | 8 | 38% | 89% | 0% | 20% | 50% |
| Geography | 1 | 5% | 41% | — | 25% | — |
| Combined Science | 1 | 5% | 65% | — | 9% | — |
Other secondary schools in Lincolnshire
Bourne Academy
Academy converter · sixth form · 1,573 pupils
88% stayed in education · Attainment 8 47.2
Bourne Grammar School
Academy converter · sixth form · 1,718 pupils
97% stayed in education · Attainment 8 68.6
Branston Community Academy
Academy converter · sixth form · 1,132 pupils
89% stayed in education · Attainment 8 43.8
Caistor Grammar School
Academy converter · sixth form · 690 pupils
97% stayed in education · Attainment 8 69.8
Caistor Yarborough Academy
Academy converter · 680 pupils
81% stayed in education · Attainment 8 43.8
Sources: Department for Education school and college performance tables 2024/2025 (Key Stage 4 and 16–18 results, subject entries, destination measures for 2023 leavers); Get Information About Schools register as at 19 September 2026; Ofsted management information as at 31 August 2026. Small numbers are suppressed by DfE and shown as “—”. How to read these figures.