Bexley Grammar School vs Blackfen School for Girls
A head-to-head comparison of two secondary schools in London, England, 944 m apart, using official English 2025 data. The better value in each row is highlighted.
Bexley Grammar School
Welling · Academy secondary · Ages 11–18
1,504 students
Blackfen School for Girls
Sidcup · Academy secondary · Ages 11–18
1,324 students
| Measure | Bexley Grammar School Welling, London | Blackfen School for Girls Sidcup, London |
|---|---|---|
| Success Index (England) | 99 Top 5% | 53 Top 50% |
| Region rank | #9 of 640 | #357 of 640 |
| National rank | #22 of 4,090 | #1827 of 4,090 |
| Sector | Academy | Academy |
| Type | Secondary | Secondary |
| Year range | Ages 11–18 | Ages 11–18 |
| Students | 1,504 | 1,324 |
| Pupils on roll | 1,504 | 1,324 |
| Free school meals | 4% | 16.4% |
| Capacity filled | 110.8% | 88.3% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 74.7 | 44.1 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 98.2% | 38.6% |
| Grade 4+ English & maths | 99.6% | 61% |
| EBacc average points | 7.36 | 3.63 |
| A level points per entry | – | 34.0 |
| town | Welling | Sidcup |
| region | London | London |
| Website | www.bexleygs.co.uk/ | www.blackfenschoolforgirls.co.uk |
The verdict
- •Bexley Grammar School scores higher on the Success Index (England) (98.6 vs 52.9).
- •Bexley Grammar School is the larger school with 1,504 students compared with 1,324.
- •Bexley Grammar School is co-educational and Blackfen School for Girls is girls.
The Success Index (England) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Bexley Grammar School better than Blackfen School for Girls?
On the Success Index (England), Bexley Grammar School ranks higher (98.6 vs 52.9 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Bexley Grammar School and Blackfen School for Girls?
About 944 m in a straight line, between Welling and Sidcup in London.
Which has the better Pupils on roll?
Bexley Grammar School: 1,504. Blackfen School for Girls: 1,324. Number of pupils in the latest school census.
How do Bexley Grammar School and Blackfen School for Girls rank in London?
Bexley Grammar School is 9th of 640 and Blackfen School for Girls is 357th of 640 among secondary schools in London on the 2025 Success Index (England).