St Mary's School

All-through · Girls · Ages 3–18 · Independent school

Packhorse Road, Gerrards Cross SL9 8JQ · stmarysgx.co.uk · 01753 883370

Overview

Inspection: ISI; Inspected by the Independent Schools Inspectorate, not Ofsted
A levels, 2024/25: B-; average result (38.2 points per entry)

The official school record (Department for Education)

In 2024/25 the average A level result was grade B- (38.2 points per entry).

Attainment 8

2024/25	Trend	School	England
		▼37.6	46.0
		▼1.8%	45.4%
		▼1.8%	64.8%
		▼0.0%	40.5%
		▼3.03	4.09

A level average grade

2024/25	Trend	Average grade	Progress
27 students		B- (38.2)	Average +0.12
27 students		B- (38.1)	Average +0.11

0%AAB or better

Earlier years: A level	Students	Average grade	Progress
2023/24	24	B- (35.7)	+0.02
2022/23	15	B+ (42.5)	—
2021/22	33	B+ (42)	—
2018/19	24	B (38.5)	+0.32
2017/18	25	B- (37.9)	+0.32
2016/17	20	B (41.4)	+0.28
2015/16	23	B- (35.7)	+0.02

2015/16

2016/17

2017/18

2018/19

2019/20

2021/22

2022/23

2023/24

St Mary's School is inspected by the Independent Schools Inspectorate, not by Ofsted.

Previously: standards met, routine inspection, Nov 2023

Quality of education	Met
Health and emotional wellbeing	Met
Social and economic education	Met
Safeguarding	Met
Leadership and governance	Met