Blackfen School for Girls
#357 of 640 secondary schools in London
#1827 of 4,090 nationally
About Blackfen School for Girls
Blackfen School for Girls is a academy secondary located in Sidcup, in the Bexley local authority of London, England. It caters for Ages 11–18 and is a girls' school. In 2025 it enrolled 1,324 students. Academies and free schools are state-funded and free to attend, run by academy trusts rather than the local authority.
Its Success Index (England) is 52.9 out of 100, placing it in the top 50% of secondary schools in England and 357th of 640 ranked secondary schools in London. Its strongest component is community advantage (fewer pupils on free school meals) (81th percentile), and its weakest is grade 5+ in english & maths (43th percentile).
Other published figures: pupils on roll 1,324; capacity filled 88.3%; grade 4+ english & maths 61%; ebacc average points 3.63.
There are 20 schools in Sidcup; Blackfen School for Girls ranks 10th of 17 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary schools across England.
- KS2: reading, writing & maths expected standard (35%)–
- KS2: higher standard (20%)–
- KS2: reading progress (10%)–
- KS2: maths progress (10%)–
- Progress 8 (20%)–
- Attainment 8 (30%)44.1
- Grade 5+ in English & maths (15%)38.6%
- A level points per entry (10%)34.0
- Community advantage (fewer pupils on free school meals) (15%)16.4%
The Success Index (England) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Blackfen School for Girls by the official sources.
- Pupils on roll
- 1,324
- Number of pupils in the latest school census.
- Free school meals
- 16.4%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 88.3%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 44.1
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 38.6%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 61%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 3.63
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 34.0
- Average points per A level entry (A* = 60, E = 10).
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Schools near Blackfen School for Girls
Closest schools by straight-line distance, with their Success Index (England).
Sherwood Park Primary School
Sidcup · Academy primary · Ages 3–11
282 students · 187 m away
Bexley Grammar School
Welling · Academy secondary · Ages 11–18
1,504 students · 944 m away
Days Lane Primary School
Sidcup · Academy primary · Ages 3–11
653 students · 979 m away
Danson Primary School
Welling · Local authority primary · Ages 4–11
592 students · 1.0 km away
Chatsworth Infant School
Sidcup · Academy primary · Ages 3–7
210 students · 1.1 km away
Hurstmere School
Sidcup · Academy secondary · Ages 11–16
893 students · 1.1 km away
Hurst Primary School
Bexley · Academy primary · Ages 3–11
662 students · 1.3 km away
Our Lady of the Rosary Catholic Primary School
Sidcup · Local authority primary · Ages 3–11
397 students · 1.4 km away
Holy Trinity Lamorbey Church of England School
Sidcup · Academy primary · Ages 3–11
241 students · 1.4 km away
Crook Log Primary School
Bexleyheath · Local authority primary · Ages 3–11
432 students · 1.4 km away
Similar schools
Academy secondary schools in London with a comparable Pupils on roll.
Lift Aylward
London · Academy secondary · Ages 11–19
1,324 students
Harris Academy St John's Wood
London · Academy secondary · Ages 11–18
1,326 students
Queen Elizabeth's School, Barnet
Barnet · Academy secondary · Ages 11–18
1,321 students
Wilson's School
Wallington · Academy secondary · Ages 11–18
1,327 students
Chestnut Grove Academy
London · Academy secondary · Ages 11–19
1,327 students
Queens Park Community School
London · Academy secondary · Ages 11–19
1,328 students
Frequently asked questions
Is Blackfen School for Girls a good school?
Blackfen School for Girls has a Success Index (England) of 52.9 out of 100 (Top 50% of secondary schools in England) and ranks #357 of 640 in London. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Blackfen School for Girls rank in London?
Blackfen School for Girls ranks #357 of 640 secondary schools in London and #1827 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Blackfen School for Girls?
Blackfen School for Girls had 1,324 students in 2025.
Is Blackfen School for Girls a primary school or a secondary school?
Blackfen School for Girls is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near Blackfen School for Girls?
There are 10 schools within 15 km of Blackfen School for Girls; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.