Debenham High School is an academy converter in Stowmarket, Suffolk, admitting pupils aged 11-16. It is part of DEBENHAM HIGH SCHOOL. The school has approximately 699 pupils on roll, of whom 13% are eligible for free school meals.
In 2025, pupils achieved an Attainment 8 score of 55.7, placing the school #1 in Suffolk and #424 of 3,216 nationally. 68.10% of pupils achieved grade 5 or above in English and Maths. 30.0% of all GCSE entries were graded 9–7.
Ofsted last inspected the school in 2023. The school's current overall rating is Good. Inspectors assessed quality of education as Good, behaviour and attitudes Outstanding, personal development Outstanding, and leadership and management Good.
In the most recent admissions cycle, applications were at 1.0× capacity.
The pupil-to-qualified-teacher ratio is 17.4:1. There are no current teaching vacancies.
In the 2024/25 academic year, there were no permanent exclusions. The average suspension rate was 1.2 per 1,000 pupils per term.