St Mark's Catholic School
Secondary schoolSt Mark's Catholic School is a secondary school in Hounslow, for pupils aged 11 to 18. It had 1,214 pupils at the school census in January 2026.
Ofsted
Latest inspections as at 30 September 2026Outstanding (overall), September 2022
- Inspection
- Graded inspection, 21 September 2022
- Overall effectiveness
- Outstanding
- Quality of education
- Outstanding
- Behaviour and attitudes
- Outstanding
- Personal development
- Outstanding
- Leadership and management
- Outstanding
Outcomes as Ofsted published them. Report cards (from November 2025) give no overall grade, and grades under different frameworks can’t be compared.
Results
Department for EducationIn 2025/26, the average Attainment 8 score at St Mark's Catholic School was 62.7, against 49.3 in Hounslow and 46.2 in England.
76.1% of its pupils got grade 5 or above in English and maths GCSEs (46.3% in England).
End of secondary school (KS4, GCSEs)
2025/26, provisional| Measure | This school | Hounslow | England |
|---|---|---|---|
| Average Attainment 8 score | 62.7 | 49.3 | 46.2 |
| Grade 5 or above in English and maths | 76.1% | 52.9% | 46.3% |
| Grade 4 or above in English and maths | 87% | 70.1% | 64.8% |
| Pupils at the end of KS4 | 184 | – | – |
- The 2025/26 figures are provisional. The Department for Education publishes revised ones later in the school year.
- Progress 8 cannot be worked out for 2025/26, because the KS2 tests that give the starting point were cancelled in 2020 and 2021.
- Results reflect the pupils a school admits as well as its teaching, and a year's results can move a lot in a small school.
Schools nearby
In a straight line- St Michael and St Martin Catholic Primary SchoolPrimary. Outstanding (overall), April 2023. 93% met the expected standard at KS2 (2024/25)360 m
- Grove Road Primary SchoolPrimary. Report card, February 2026: safeguarding met. 44% met the expected standard at KS2 (2024/25)450 m
- Wellington Primary SchoolPrimary. Improved significantly, November 2024. 85% met the expected standard at KS2 (2024/25)700 m
- The Orchard Primary SchoolPrimary. Good (overall), December 2023. 70% met the expected standard at KS2 (2024/25)720 m
- Hounslow Heath SchoolPrimary. No outcome in Ofsted's file. 66% met the expected standard at KS2 (2024/25)790 m
- Suffah Primary SchoolIndependent. Not in Ofsted's state-funded schools file1 km
Admissions and catchments are set by councils and schools, which Open Index doesn’t map. Every school in Hounslow
Where these figures come from
- Schools: the school lists of the Department for Education, the Welsh Government and the Scottish Government, with Ofsted’s latest inspections for England.
- Results: the Department for Education’s school performance tables (Open Government Licence).