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Abingdon, South East
John Mason School is a secondary academy in Abingdon, South East.
Government data shown for the 2024/25 academic year
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John Mason School is a secondary academy in Abingdon, South East. It has not yet been rated by students on y.school. Be the first to rate this academy and help other students and parents understand what the school experience is really like.
In terms of academic performance, John Mason School has a Progress 8 score of -0.52 (below the national average), an Attainment 8 score of 41.1, 53% of students achieving grade 4+ in English and Maths, an average A-Level grade of B-.
The school has 453 pupils on roll, a teacher turnover rate of 30.9%, 15% of pupils eligible for free school meals, an overall absence rate of 11.5%.
After leaving John Mason School, student destinations include 61% going on to university and 7% entering apprenticeships.
All student scores on y.school are calculated from anonymous ratings using a transparent, deterministic methodology. Scores are freshness-weighted (18-month half-life) and include confidence tiers based on sample size, diversity, and consistency. For full details, see the y.school methodology.
Profile completeness: 6 of 8 data domains · Good coverage
5.5
Average
/ 10
Data Score
Computed from 21 government data points. Not based on student reviews.
Source: DfE / Ofsted · context onlyGovernment data is shown for context and does not influence the student-review Student Score. Small schools can show extreme percentages from small sample sizes.
Latest government data shown is for the 2024/25 academic year; some figures cover earlier years.
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John Mason School has a Progress 8 score of -0.52, which is below the national average of 0. Progress 8 measures how much progress students make between the end of Key Stage 2 and their GCSE results, compared to students with similar starting points nationally.
The school's Attainment 8 score is 41.1. Attainment 8 measures the average achievement of students across 8 qualifications including English, Maths, three EBacc subjects, and three open group qualifications.
53% of students at John Mason School achieved grade 4 or above in both English and Maths GCSEs.
Students at John Mason School achieve an average A-Level grade of B-. This metric covers all A-Level and equivalent qualifications taken at the school.
John Mason School has an overall absence rate of 11.5%. The national average for secondary schools was approximately 8.5% (DfE, 2023/24).
The teacher turnover rate at John Mason School is 30.9%. This measures the percentage of teachers who left the school in the past year.
John Mason School has 453 pupils on roll.
15% of pupils are eligible for free school meals, which is used as a proxy for socioeconomic disadvantage.
20% of pupils receive SEN (Special Educational Needs) support or have an Education, Health and Care plan.
After leaving John Mason School, 61% go on to university and 7% enter apprenticeships.
Based on the latest government data. Every child is different — use this as a starting point, not a verdict.
In context — vs similar-intake schools
Bottom 25% for its intakeJohn Mason School is in the bottom 25% for Progress 8 among schools with a similar intake (11–17% of pupils eligible for free school meals).
Compared with 697 schools nationally that have a similar share of disadvantaged pupils (11–17% of pupils eligible for free school meals). Raw league-table positions are heavily shaped by intake; this comparison isolates how a school performs relative to others facing similar circumstances. Progress 8 already accounts for prior attainment. Source: Department for Education.
See the schools that most outperform their intakeSchools like this one
Matched on the share of disadvantaged pupils plus special-needs, English-as-an-additional-language and school size — so you can compare like with like, not just by postcode.
National percentiles (100 = best) for the area around the school · 5/5 measures · Police.uk, DEFRA, NaPTAN, DfT STATS19, MHCLG IoD 2025.
Other schools in the Abingdon area
John Mason School was rated "Requires Improvement" by Ofsted following an inspection in December 2024. Based on Ofsted's inspection cycle, John Mason School is due for reinspection this year (2026).
A "Requires Improvement" rating means Ofsted identified areas where the school needs to improve. The school will typically be reinspected within around two years.
Note: From November 2025, Ofsted replaced single-word judgements with detailed report cards covering multiple categories. While John Mason School's rating shown above was awarded under the previous system, Ofsted now provides more granular assessments. For the most up-to-date inspection information, check the school's report card on the Ofsted website.
Ofsted data is shown for context only and does not influence the Student Score. For the official report, visit reports.ofsted.gov.uk.