St Mary's School Ascot vs Charters School
Side-by-side comparison of key school data
Charters School
Ascot
Overview
Phase
Senior
Secondary
Type
Other independent school
Academy converter
Age Range
11–18
11–18
Gender
Girls
Mixed
Religious Character
Roman Catholic
None
Admissions
-
Non-selective
Local Authority
Windsor and Maidenhead
Windsor and Maidenhead
Pupils & Capacity
Pupils
401
1707
Capacity
405
1740
Occupancy
99%
98%
FSM %
-
11.0%
Nursery
Sixth Form
Boarding
Ofsted
Overall Rating
-
Good
Quality of Education
-
Good
Behaviour & Attitudes
-
Good
Personal Development
-
Good
Leadership & Management
-
Good
Last Inspected
-
Mar 2023
Performance (2026)
Progress 8
-
-
Attainment 8
32.2
53.2
GCSE Eng+Maths 5+
0%
60.4%
KS2 Reading
-
-
KS2 Maths
-
-
KS2 Writing
-
-
A-Level Performance (2024/25)
Average Grade
A-
B-
Points Per Entry
47.2
35.5
Best 3 A-Levels
A-
B-
AAB+ %
41%
17%
Value Added
Average
Below average
A-Level Students
52
170
Retention
-
99%
University Destinations (2022/23 cohort)
Top-third university
-
33%
Degree course
-
79%
Any L4+ destination
-
80%
Apprenticeships
-
1%
Cohort size
-
175
A-Level Subjects
Subjects offered
15
15
Top subjects
Mathematics (70)
Mathematics (40)
English Literature (34)
Biology (34)
Chemistry (34)
History of Art (30)
History of Art (30)
English Literature (30)
Psychology (122)
Mathematics (106)
Mathematics (98)
Psychology (96)
Chemistry (84)
Biology (84)
Economics (72)
Media / Film / TV Studies (70)