How do you decide which schools are best?

We combine official data sources and our methodology to highlight consistent performance. Use filters to personalise results based on what matters to your family.

Are all Isleworth neighbourhoods included?

Yes. We group schools by their locality field so you can quickly scan areas and their nearby schools. All sections are expanded by default on this page.

Why do results differ from Ofsted-only lists?

We consider a broader set of indicators and present more flexible filtering, including faith options, mixed/grammar status, and age ranges.

2026 Best Secondary Schools in Isleworth Area

Schools whose postal address is in Isleworth, London. Explore 5 secondary schools in Isleworth. The current top-ranked secondary schools are The Green School for Girls, Gumley House RC Convent School, FCJ, and The Green School for Boys. Compare local rankings, GCSE results, FMS Inspection Score, and neighbourhood options in one place.

Key Performance Metrics for Isleworth

Average Attainment 8 score (out of 90)

Isleworth48.9

England39.1

% pupils entering EBacc subjects

Isleworth33%

England41%

Average EBacc APS score (out of 10)

Isleworth4.3

England4.1

Average FMS Inspection Score (out of 10)

Isleworth7.5/10

England7.4/10

Average Attainment 8 score (out of 90)

Isleworth

48.9vsEngland

39.1

% pupils entering EBacc subjects

Isleworth

33%vsEngland

41%

Average EBacc APS score (out of 10)

Isleworth

4.3vsEngland

4.1

Average FMS Inspection Score (out of 10)

Isleworth

7.5/10vsEngland

7.4/10

Top schools in Isleworth

Showing 1-5 of 5 schools

The Green School for Girls
Isleworth
Gumley House RC Convent School, FCJ
Isleworth
ADGrades not where they should be?We match your child with a qualified GCSE or A-Level tutor.5.0·108 Google reviewsFind my tutor →
ADTHE DEGREE GAPGrades not where they
should be?5.0 · 108 reviewsFind my tutor →
The Green School for Boys
Isleworth
ADGrades not where they should be?We match your child with a qualified GCSE or A-Level tutor.5.0·108 Google reviewsFind my tutor →
ADTHE DEGREE GAPGrades not where they
should be?5.0 · 108 reviewsFind my tutor →
Bolder Academy
Isleworth
Isleworth and Syon School for Boys
Isleworth