Isleworth GCSE results 2025: secondary school league table

On 2025 Attainment 8, Gumley House RC Convent School, FCJ topped the table in Isleworth with 56.3, against an England average of 46.1. Attainment 8 rewards intake as well as teaching, so compare a school's grade 5+ pass rate and, where published, its Progress 8 before reading the rank as a verdict.

This page is the 2025 archive (the 2024/25 academic year). The latest published results for every school in Isleworth are on the main Isleworth GCSE results page, which updates when the DfE releases the next year's performance tables: provisional figures in the autumn, revised figures early in the new year.

Attainment 8 is the DfE's headline GCSE measure: the average points a school's pupils achieved across eight qualifications, with English and maths counted twice. A score of 50 means pupils averaged roughly a grade 5 across those subjects. No Progress 8 exists for 2025 because these pupils sat no Key Stage 2 tests in 2020.

A school has no published figure for 2025 when it had no Year 11 cohort in that year (a new school, or one that opened with younger year groups), when it converted to an academy and the DfE published that year's results under its previous identity, or when it is independent and its pupils sat IGCSE, Pre-U or IB qualifications that the DfE tables do not count. Independent schools with a published figure are listed separately and unranked for that reason.