Mayflower High School vs St John's School
Side-by-side comparison of key school data
Mayflower High School
Billericay
St John's School
Billericay
Overview
Phase
Secondary
All-through
Type
Academy converter
Other independent school
Age Range
11–18
2–16
Gender
Mixed
Mixed
Religious Character
None
None
Admissions
Non-selective
Selective
Local Authority
Essex
Essex
Pupils & Capacity
Pupils
1616
274
Capacity
1700
550
Occupancy
95%
50%
FSM %
10.6%
-
Nursery
Sixth Form
Boarding
Ofsted
Overall Rating
-
-
Quality of Education
Requires Improvement
-
Behaviour & Attitudes
Good
-
Personal Development
Good
-
Leadership & Management
Requires Improvement
-
Last Inspected
Dec 2025
-
Performance (2026)
Progress 8
-
-
Attainment 8
48.1
58.8
GCSE Eng+Maths 5+
52.6%
81%
KS2 Reading
-
-
KS2 Maths
-
-
KS2 Writing
-
-
A-Level Performance (2024/25)
Average Grade
C+
-
Points Per Entry
33.4
-
Best 3 A-Levels
C+
-
AAB+ %
8%
-
Value Added
Average
-
A-Level Students
118
-
Retention
99%
-
University Destinations (2022/23 cohort)
Top-third university
10%
-
Degree course
41%
-
Any L4+ destination
51%
-
Apprenticeships
9%
-
Cohort size
174
-
A-Level Subjects
Subjects offered
15
0
Top subjects
Psychology (84)
Economics (80)
Business Studies:Single (76)
Economics (74)
Psychology (62)
History (60)
Law (60)
Mathematics (58)