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| Age Range | 11-18 years |
| Gender | Mixed |
| Type | Independent school, Other independent school |
| Religious Character | Church of England |
| Local Authority | Hertfordshire |
| Address | , SG13 7NU |
| School Website | www.haileybury.com |
| Telephone | 1992706200 |
| URN | 117607 |
| Total | 892 |
| Girls/Boys | 430/462 |
| Girls/Boys Ratio | 48.2%/51.8% |
| % pupils where English not first language | None |
| No. pupils eligible for free school meals | None |
| Percentage of eligible pupils with SEN support | 11.7% |
No Ofsted inspection data available for this school.
| Start Date | Ofsted Rating |
|---|
| Secondary Results 2024 | |
| Type | Score |
| Attainment 8 score | 14 |
| Grade 5 or above in English and maths | 0.00% |
| 5 or more GCSEs at grade 9-4 | 0.00% |
| Entering EBacc | 0.00% |
| EBacc average point score | 1.18 |
| Progress 8 | NP |
| Secondary Results 2023 | |
| Type | Score |
| Attainment 8 score | 11.8 |
| Grade 5 or above in English and maths | 0% |
| 5 or more GCSEs at grade 9-4 | 0% |
| Entering EBacc | 0% |
| EBacc average point score | 0.77 |
| Progress 8 | NP |
| Secondary Results 2022 | |
| Type | Score |
| Attainment 8 score | 10.8 |
| Grade 5 or above in English and maths | 0% |
| 5 or more GCSEs at grade 9-4 | 0% |
| Entering EBacc | - |
| EBacc average point score | 0.87 |
| Progress 8 | NP |