St John's School vs Mayflower High School
Side-by-side comparison of key school data
St John's School
Billericay
Mayflower High School
Billericay
Overview
Phase
All-through
Secondary
Type
Other independent school
Academy converter
Age Range
2–16
11–18
Gender
Mixed
Mixed
Religious Character
None
None
Admissions
Selective
Non-selective
Local Authority
Essex
Essex
Pupils & Capacity
Pupils
274
1616
Capacity
550
1700
Occupancy
50%
95%
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
58.8
48.1
GCSE Eng+Maths 5+
81%
52.6%
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
0
15
Top subjects
Psychology (84)
Economics (80)
Business Studies:Single (76)
Economics (74)
Psychology (62)
History (60)
Law (60)
Mathematics (58)