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School · SecondaryiSource and licenceOfficial record from Get Information about Schools (DfE). Results, attendance, pupil numbers, finance and inspection outcomes are from the Department for Education and Ofsted, as published.Contains public sector information licensed under the Open Government Licence v3.0.Governance Register calculates the connections.How we handle data

Blackfen School for Girls

Academy converter secondary school in Sidcup (Bexley).

Attainment 8
46.2
same England 2025/26 provisional: 46.2
2025/26 provisional
English & maths 5+
43.9%
▼ 2pp England 2025/26 provisional: 46.3%
2025/26 provisional
Attendance rate
90.2%
▼ 1pp England 2024/25: 91.6%
2024/25 academic year
Pupil : Teacher
17.1
▲ 0.4 England 2025/26: 16.7
2025/26
Eligible for free school meals
14.4%
▼ 13pp England 2025/26: 27.3%
school census 15/01/2026
Teacher turnover
7.3%
▼ 7pp England 2024/25: 14.2% (secondary schools)
2024/25
Capacity
88%
1,324 / 1,500 pupils
register figure (GIAS)
Ofsted
No overall grade
inspected Mar 2025

The neighbourhood

iEnglish Indices of Deprivation 2025 for the area around the school (LSOA). Decile 1 is the most deprived 10% of England, 10 the least.
Overall deprivation6
Income5
Employment6
Education and skills5
Health8
Crime5
Barriers to housing and services9
Living environment3
most deprivedleast deprived
Children in income-deprived families
115