All-throughAcademyOpen

Simon Balle All-Through School

Mangrove Road, Hertford, Hertfordshire, SG13 8AJ · URN 140294

Public data summary

7.5

out of 10 · 26 data sources

Coverage 65% · Solid

Record

At a glance

Ofsted: Outstanding
Pupils: 760
Age range: 4–18
Gender: Mixed
Capacity: 1,037
Local authority: Hertfordshire

Outcomes

Published performance

GCSE Progress 8: 0.45
GCSE Attainment 8: 52.9
KS2 combined: 75.0%
A-level average: B
Sustained education: 63.0%
University: 60.0%

Context

Attendance and community

Overall absence: 5.4%
Persistent absence: 10.5%
Free school meals: 6.3%
SEN support: 14.1%
English additional language: 6.5%

Resources

Workforce and funding

Pupil–teacher ratio: 7.9:1
Average class size: 25.8
Staff turnover: 8.9%

Official-data model

Data dimensions

Destinations

7.7

5 contributing signals

Achievement

8.3

9 contributing signals

Progress

7.9

2 contributing signals

Attendance

6.9

5 contributing signals

Resources

7.6

3 contributing signals

Equity

6.1

2 contributing signals

Continue

Explore the school atlas

Nearby schools Browse atlas Rankings

School contact

Official website

01992410400

School records are retained from official public datasets and managed through the Y School admin. This atlas is a supporting layer, not the current Y School product. Last refreshed 02/06/2026.