Last updated 18 September 2026
School Guide verdict
St Mary's School is an independent secondary for girls in Cambridge, where good GCSE passes sit well above the national average, earning it a 5-star rating from School Guide. At its 2025 ISI inspection, the quality of academic and other achievements was judged excellent.
Top grades at GCSE (7-9) and top grades at A level (A*/A)
School Description
St Mary’s School, Cambridge is an independent girls’ day and boarding school educating students from age 4 to 18. Situated in the heart of the academically and culturally vibrant city of Cambridge, we offer a safe and secure learning environment for girls.
We are a Christian school in the Catholic tradition. We welcome girls from all denominations and faith because a strong Christian framework firmly underpins our school, helping to build and protect the spiritual well-being of each individual student. The school has a unique atmosphere which supports learning and development, and fosters self-esteem, confidence and friendship.
A fifth of the girls at St Mary's School, Cambridge are boarders. Reflecting the cosmopolitan community of Cambridge, 14% of pupils at the school are from overseas, from 34 countries worldwide.
This school is independently managed and its admission criteria may be selective. There is no set catchment area as pupils are admitted from a wide variety of postcodes and, in the case of boarding schools, from outside the UK. Contact the school directly or visit their website for more information on Admissions Policy and Procedures.
At its 2025 ISI inspection, St Mary's School was judged excellent for the quality of academic and other achievements.
At GCSE, 81% of pupils achieve good GCSE passes (5+ GCSEs grade 9-4 including English and maths), well above the national average of 38.9%.
There are 510 pupils at the school.
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