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Dr Challoner's Grammar School

Secondary school

Dr Challoner's Grammar School is a secondary school in Buckinghamshire, for pupils aged 11 to 18. It had 1,384 pupils at the school census in January 2026.

Ofsted

Latest inspections as at 30 September 2026

Standards maintained, November 2024

Before that: Outstanding (overall), November 2019

Inspection
Graded inspection, 5 November 2019
Overall effectiveness
Outstanding
Quality of education
Outstanding
Behaviour and attitudes
Outstanding
Personal development
Outstanding
Leadership and management
Outstanding
Latest ungraded inspection
Standards maintained, 6 November 2024

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 Education

In 2025/26, the average Attainment 8 score at Dr Challoner's Grammar School was 76.2, against 53.4 in Buckinghamshire and 46.2 in England.

98.9% 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
MeasureThis schoolBuckinghamshireEngland
Average Attainment 8 score76.253.446.2
Grade 5 or above in English and maths98.9%59.6%46.3%
Grade 4 or above in English and maths99.5%73.9%64.8%
Pupils at the end of KS4185––
  • 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

Admissions and catchments are set by councils and schools, which Open Index doesn’t map. Every school in Buckinghamshire

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).