Longdean School
Secondary schoolLongdean School is a secondary school in Dacorum, for pupils aged 11 to 18. It had 1,436 pupils at the school census in January 2026.
Ofsted
Latest inspections as at 30 September 2026Standards maintained, March 2025
- Latest ungraded inspection
- Standards maintained, 12 March 2025
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 Longdean School was 43.7, against 45.7 in Dacorum and 46.2 in England.
40.3% 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 | Dacorum | England |
|---|---|---|---|
| Average Attainment 8 score | 43.7 | 45.7 | 46.2 |
| Grade 5 or above in English and maths | 40.3% | 46.4% | 46.3% |
| Grade 4 or above in English and maths | 63% | 65.8% | 64.8% |
| Pupils at the end of KS4 | 238 | – | – |
- 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- Hobbs Hill Wood Primary SchoolPrimary. School remains Good, June 2023. 72% met the expected standard at KS2 (2024/25)200 m
- Chambersbury Primary SchoolPrimary. Good (overall), November 2022. 41% met the expected standard at KS2 (2024/25)370 m
- Saint Albert the Great Catholic Primary School, a Voluntary AcademyPrimary. Graded inspection, April 2025: no overall grade. 50% met the expected standard at KS2 (2024/25)610 m
- Woodfield SchoolSpecial. Graded inspection, October 2024: no overall grade640 m
- The Reddings Primary SchoolPrimary. Standards maintained, November 2024. 57% met the expected standard at KS2 (2024/25)670 m
- Belswains Primary SchoolPrimary. School remains Good, March 2023. 62% met the expected standard at KS2 (2024/25)880 m
Admissions and catchments are set by councils and schools, which Open Index doesn’t map. Every school in Dacorum
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).