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St Mark's Catholic School[1]

Secondary · ages 11–18

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Headline results

Attainment 8
A8 63 62.7 2025/26[2]
A-level average grade
AL B- B- 2024/25[3]

Results

GCSE (key stage 4)

Attainment 8
62.7 2025/26[2]
Grade 5+ in English & maths
76.1% 2025/26[2]
Grade 7+ in English & maths
38% 2025/26[2]
Progress 8
+1.35 2023/24[4]
Progress 8, 2025/26
Not calculated[5]
Progress 8, 2024/25
Not calculated[5]
Earlier years
Year Attainment 8 Grade 5+ in English & maths Grade 7+ in English & maths Progress 8
2024/25 62.5[6] 72%[6]
2023/24 64.7[4] 77.8%[4] +1.35[4]
2022/23 62.3[7] 76%[7] +1.30[7]
2021/22 63.1[8] 77%[8] +1.16[8]

A level (16–18)

A-level average grade
B- 2024/25[3]
AAB or better, at least two in facilitating subjects
17.8% 2024/25[3]
All results, 2020/21
Not published (exams cancelled, COVID-19)[9]
All results, 2019/20
Not published (exams cancelled, COVID-19)[9]
Earlier years
Year A-level average grade AAB or better, at least two in facilitating subjects
2023/24 B[10] 22.2%[10]
2022/23 B-[11] 13.6%[11]
2021/22 B[12] 20.6%[12]
2018/19 B-[13] 16.3%[13]

Destinations after GCSEs

Sustained education, apprenticeship or employment
97% 2022/23[14]
School sixth form
71% 2022/23[14]
Sixth-form college
1% 2022/23[14]
Further education college
24% 2022/23[14]
Apprenticeship
1% 2022/23[14]
Employment
1% 2022/23[14]
Earlier leavers
Left in Sustained education, apprenticeship or employment School sixth form Sixth-form college Further education college Apprenticeship Employment
2021/22 99%[15] 66%[15] 0%[15] 33%[15] 0%[15] 0%[15]
2020/21 98%[16] 62%[16] 2%[16] 34%[16] 1%[16] 0%[16]
2019/20 99%[17] 74%[17] 1%[17] 24%[17] 0%[17] 0%[17]
2018/19 97%[18] 69%[18] 0%[18] 27%[18] 1%[18] 0%[18]

Destinations after 16–18 study

Sustained education, apprenticeship or employment
96% 2022/23[19]
UK higher education
79% 2022/23[19]
Education
82% 2022/23[19]
Apprenticeship
1% 2022/23[19]
Employment
12% 2022/23[19]
Earlier leavers
Left in Sustained education, apprenticeship or employment UK higher education Education Apprenticeship Employment
2021/22 95%[20] 81%[20] 82%[20] 4%[20] 8%[20]
2020/21 92%[21] 78%[21] 80%[21] 1%[21] 11%[21]
2019/20 92%[22] 80%[22] 85%[22] 0%[22] 7%[22]
2018/19 97%[23] 69%[23] 78%[23] 3%[23] 16%[23]

Higher education after 16–18 study

Progressed to higher education
90% 2021/22[24]
Top third of most selective universities
38% 2021/22[24]
Russell Group universities
40% 2019/20[25]
Oxford or Cambridge
2% 2019/20[25]
Earlier leavers
Left in Progressed to higher education Top third of most selective universities Russell Group universities Oxford or Cambridge
2020/21 89%[26] 44%[26]
2019/20 93%[25] 44%[25] 40%[25] 2%[25]
2018/19 85%[27] 30%[27] 26%[27] 1%[27]
2017/18 86%[28] 28%[28] 27%[28] 1%[28]

Shares of the pupils who left in the year shown. Russell Group and Oxford or Cambridge figures were published for leavers up to 2019/20 only.

Ofsted

Latest inspection
21 Sep 2022[29]
Type
S5 Inspection[29]
Report published
18 Oct 2022[29]
Personal development
Outstanding[29]
Quality of education
Outstanding[29]
Overall effectiveness
Outstanding[29]
Behaviour and attitudes
Outstanding[29]
Safeguarding is effective
Yes[29]
Sixth form provision (where applicable)
Outstanding[29]
Effectiveness of leadership and management
Outstanding[29]

Competition to get in

Applications and offers, Year 7

Applications per place
5.9 Entry Sept 2026[30]
Applications (any preference)
1032 Entry Sept 2026[30]
First preferences
325 Entry Sept 2026[30]
Places offered
176 Entry Sept 2026[30]
First preferences per place
1.8 Entry Sept 2026[30]
Earlier years
Entry Applications First preferences Places offered Per place First preferences per place
Entry Sept 2025 1029[30] 353[30] 180[30] 5.7[30] 2.0[30]
Entry Sept 2024 1025[30] 339[30] 183[30] 5.6[30] 1.9[30]
Entry Sept 2023 1149[30] 354[30] 179[30] 6.4[30] 2.0[30]
Entry Sept 2022 1111[30] 333[30] 181[30] 6.1[30] 1.8[30]

Admissions

Places (published admission number), 11+ entry
186 Entry Sept 2027[31]

Character & practicalities

Type
Academy converter[1]
Ages
11–18[1]
Boys / girls
Mixed[1]
Faith
Roman Catholic[1]
Admissions
Non-selective[1]
Sixth form
Yes[1]
Boarding
No boarders[1]
Capacity
1213[1]
Trust
THE DIOCESE OF WESTMINSTER ACADEMY TRUST[1]
Local authority
Hounslow[1]
Website
http://www.st-marks.hounslow.sch.uk/[1]
District
Hounslow[32]
Postcode
TW3 3EJ[1]
URN
137995[1]

School details as recorded in Get Information About Schools on 14 Oct 2026.

Pupils

Number on roll
1215 2024/25[33]
English as an additional language
56.9% 2024/25[33]
SEN support
10.1% 2024/25[33]
EHC plan
2.7% 2024/25[33]
Free school meals in the last 6 years
13.8% 2024/25[33]

Pupils' ethnicity 2025/26

White
30.6%[34]
Mixed
7.2%[34]
Asian
49.6%[34]
Black
5.9%[34]
Any other ethnic group
6.5%[34]
Unclassified
0.2%[34]

The school census's major ethnic groups as shares of the school's pupils, summed by us from the published counts. For information only: never used to rank, filter or colour schools.

Sources

  1. Department for Education: Get Information About Schools: all establishments. Period 2026-10-14, published 2026-10-14. Publication page. Data file. Licence: OGL-3.0.
  2. Department for Education: Performance tables schools data (explore education statistics). Period 2025/26, provisional, published 2026-10-15. Publication page. Data file. Licence: OGL-3.0.
  3. Department for Education: Compare School Performance download: KS5 (16-18) final. Period 2024/25, final. Publication page. Data file. Licence: OGL-3.0.
  4. Department for Education: Compare School Performance download: KS4 final. Period 2023/24, final. Publication page. Data file. Licence: OGL-3.0.
  5. Department for Education: Key stage 4 performance 2024/25: data guidance. Period 2024/25. Archived copy; original. Licence: OGL-3.0.
    Quote
    It is not possible to calculate Progress 8 for academic years 2024/25 and 2025/26 due to gaps in the baseline caused by COVID-19 disruption.
  6. Department for Education: Compare School Performance download: KS4 final. Period 2024/25, final. Publication page. Data file. Licence: OGL-3.0.
  7. Department for Education: Compare School Performance download: KS4 final. Period 2022/23, final. Publication page. Data file. Licence: OGL-3.0.
  8. Department for Education: Compare School Performance download: KS4 final. Period 2021/22, final. Publication page. Data file. Licence: OGL-3.0.
  9. Department for Education: A level and other 16 to 18 results 2020/21. Period 2020/21. Archived copy; original. Licence: OGL-3.0.
    Quote
    Due to the impact of the COVID-19 pandemic, the summer exam series was cancelled in both 2020 and 2021, and alternative processes were set up to award grades.
  10. Department for Education: Compare School Performance download: KS5 (16-18) final. Period 2023/24, final. Publication page. Data file. Licence: OGL-3.0.
  11. Department for Education: Compare School Performance download: KS5 (16-18) final. Period 2022/23, final. Publication page. Data file. Licence: OGL-3.0.
  12. Department for Education: Compare School Performance download: KS5 (16-18) final. Period 2021/22, final. Publication page. Data file. Licence: OGL-3.0.
  13. Department for Education: Compare School Performance download: KS5 (16-18) final. Period 2018/19, final. Publication page. Data file. Licence: OGL-3.0.
  14. Department for Education: Compare School Performance download: KS4 destinations. Period 2022/23, final. Publication page. Data file. Licence: OGL-3.0.
  15. Department for Education: Compare School Performance download: KS4 destinations. Period 2021/22, final. Publication page. Data file. Licence: OGL-3.0.
  16. Department for Education: Compare School Performance download: KS4 destinations. Period 2020/21, final. Publication page. Data file. Licence: OGL-3.0.
  17. Department for Education: Compare School Performance download: KS4 destinations. Period 2019/20, final. Publication page. Data file. Licence: OGL-3.0.
  18. Department for Education: Compare School Performance download: KS4 destinations. Period 2018/19, final. Publication page. Data file. Licence: OGL-3.0.
  19. Department for Education: Compare School Performance download: 16-18 destinations. Period 2022/23, final. Publication page. Data file. Licence: OGL-3.0.
  20. Department for Education: Compare School Performance download: 16-18 destinations. Period 2021/22, final. Publication page. Data file. Licence: OGL-3.0.
  21. Department for Education: Compare School Performance download: 16-18 destinations. Period 2020/21, final. Publication page. Data file. Licence: OGL-3.0.
  22. Department for Education: Compare School Performance download: 16-18 destinations. Period 2019/20, final. Publication page. Data file. Licence: OGL-3.0.
  23. Department for Education: Compare School Performance download: 16-18 destinations. Period 2018/19, final. Publication page. Data file. Licence: OGL-3.0.
  24. Department for Education: Compare School Performance download: 16-18 progression to higher education. Period 2021/22, final. Publication page. Data file. Licence: OGL-3.0.
  25. Department for Education: Compare School Performance download: 16-18 progression to higher education. Period 2019/20, final. Publication page. Data file. Licence: OGL-3.0.
  26. Department for Education: Compare School Performance download: 16-18 progression to higher education. Period 2020/21, final. Publication page. Data file. Licence: OGL-3.0.
  27. Department for Education: Compare School Performance download: 16-18 progression to higher education. Period 2018/19, final. Publication page. Data file. Licence: OGL-3.0.
  28. Department for Education: Compare School Performance download: 16-18 progression to higher education. Period 2017/18, final. Publication page. Data file. Licence: OGL-3.0.
  29. Ofsted: State-funded schools inspections and outcomes. Period 2022/23. Publication page. Data file. Licence: OGL-3.0.
  30. Department for Education: Primary and secondary school applications and offers: school level. Period Entry Sept 2026, final, published 2026-06-29. Publication page. Data file. Licence: OGL-3.0.
  31. st-marks.hounslow.sch.uk: st-marks.hounslow.sch.uk document (PDF). Period 2026-10-16. Licence: copyright-quoted.
    Quote
    The admission authority has set the Published Admission Number (PAN) at 186 pupils to be admitted to year 7 in the school year which begins in September 2027. (p. 3)
  32. Office for National Statistics: Parish to Ward to Local Authority District (May 2026) Lookup in EW. Period 2026-05-01. Publication page. Data file. Licence: OGL-3.0.
  33. Department for Education: Compare School Performance download: School census. Period 2024/25, final. Publication page. Data file. Licence: OGL-3.0.
  34. Department for Education: Schools, pupils and their characteristics: school level underlying data. Period 2025/26, published 2026-06-04. Publication page. Data file. Licence: OGL-3.0.