St Mark's Catholic School
#55 of 640 secondary schools in London
#266 of 4,090 nationally
About St Mark's Catholic School
St Mark's Catholic School is a academy secondary located in Hounslow, in the Hounslow local authority of London, England. It caters for Ages 11–18. In 2025 it enrolled 1,214 students. Academies and free schools are state-funded and free to attend, run by academy trusts rather than the local authority.
Its Success Index (England) is 89.9 out of 100, placing it in the top 10% of secondary schools in England and 55th of 640 ranked secondary schools in London. Its strongest component is attainment 8 (94th percentile), and its weakest is a level points per entry (75th percentile).
Other published figures: pupils on roll 1,214; capacity filled 100.1%; grade 4+ english & maths 85.5%; ebacc average points 5.98.
There are 27 schools in Hounslow; St Mark's Catholic School ranks 3rd of 23 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary schools across England.
- KS2: reading, writing & maths expected standard (35%)–
- KS2: higher standard (20%)–
- KS2: reading progress (10%)–
- KS2: maths progress (10%)–
- Progress 8 (20%)–
- Attainment 8 (30%)62.5
- Grade 5+ in English & maths (15%)72%
- A level points per entry (10%)38.2
- Community advantage (fewer pupils on free school meals) (15%)12.1%
The Success Index (England) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for St Mark's Catholic School by the official sources.
- Pupils on roll
- 1,214
- Number of pupils in the latest school census.
- Free school meals
- 12.1%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 100.1%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 62.5
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 72%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 85.5%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 5.98
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 38.2
- Average points per A level entry (A* = 60, E = 10).
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Schools near St Mark's Catholic School
Closest schools by straight-line distance, with their Success Index (England).
St Michael and St Martin Catholic Primary School
Hounslow · Local authority primary · Ages 3–11
475 students · 359 m away
Grove Road Primary School
Hounslow · Local authority primary · Ages 3–11
233 students · 445 m away
Wellington Primary School
Hounslow · Local authority primary · Ages 3–11
693 students · 702 m away
The Orchard Primary School
Hounslow · Local authority primary · Ages 3–11
624 students · 722 m away
Hounslow Heath School
Hounslow · Local authority primary · Ages 3–11
1,178 students · 793 m away
Suffah Primary School
Hounslow · Independent primary · Ages 3–11
92 students · 1.0 km away
Lampton Academy
Hounslow · Academy secondary · Ages 11–18
1,528 students · 1.1 km away
Lift Kingsley
Hounslow · Academy secondary · Ages 11–18
971 students · 1.1 km away
Alexandra Primary School
Hounslow · Local authority primary · Ages 3–11
652 students · 1.1 km away
The Heathland School
Hounslow · Local authority secondary · Ages 11–18
1,759 students · 1.2 km away
Similar schools
Academy secondary schools in London with a comparable Pupils on roll.
The Kingston Academy
Kingston upon Thames · Academy secondary · Ages 11–19
1,213 students
The Hollyfield School and Sixth Form Centre
Surbiton · Academy secondary · Ages 11–18
1,212 students
Bishop Ramsey Church of England School
Ruislip · Academy secondary · Ages 11–18
1,218 students
Avanti House School
Stanmore · Academy secondary · Ages 11–18
1,206 students
Hatch End High School
Harrow · Academy secondary · Ages 11–18
1,226 students
Sarah Bonnell School
London · Academy secondary · Ages 11–16
1,202 students
Frequently asked questions
Is St Mark's Catholic School a good school?
St Mark's Catholic School has a Success Index (England) of 89.9 out of 100 (Top 10% of secondary schools in England) and ranks #55 of 640 in London. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does St Mark's Catholic School rank in London?
St Mark's Catholic School ranks #55 of 640 secondary schools in London and #266 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend St Mark's Catholic School?
St Mark's Catholic School had 1,214 students in 2025.
Is St Mark's Catholic School a primary school or a secondary school?
St Mark's Catholic School is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near St Mark's Catholic School?
There are 10 schools within 15 km of St Mark's Catholic School; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.