| Borough | Hounslow |
| Postcode | TW3 3EJ |
| Phase | Secondary |
| School type | Academy converter |
| Gender | Mixed |
| Age range | 11–18 |
| Sixth form | Has a sixth form |
| Admissions | Non-selective |
| Religious character | Roman Catholic |
| Overall rating | Outstanding |
| Last inspected | 21/09/2022 |
| Report | View Ofsted report |
| Attainment 8 score | 64.7 |
| Grade 5+ English & Maths | 77.8% |
| Grade 4+ English & Maths | 92.4% |
| Headteacher | Andrea Waugh-Lucas |
| Phone | 02085773600 |
| Website | http://www.st-marks.hounslow.sch.uk/ |
| Pupil deprivation | Very low pupil deprivation |
| Crime level | Below average crime |