King Edward VI School vs St Mark's Church of England School
A head-to-head comparison of two all-through schools in South East, England, 920 m apart, using official English 2025 data. The better value in each row is highlighted.
King Edward VI School
Southampton · Independent all-through · Ages 10–19
989 students
St Mark's Church of England School
Southampton · Local authority all-through · Ages 4–16
1,129 students
| Measure | King Edward VI School Southampton, South East | St Mark's Church of England School Southampton, South East |
|---|---|---|
| Success Index (England) | 21 Lower 50% | 50 Top 50% |
| Region rank | #563 of 679 | #342 of 679 |
| National rank | #3494 of 4,090 | #1948 of 4,090 |
| Sector | Independent | Local authority |
| Type | All-through | All-through |
| Year range | Ages 10–19 | Ages 4–16 |
| Students | 989 | 1,129 |
| Pupils on roll | 989 | 1,129 |
| Free school meals | – | 46.7% |
| Capacity filled | 97.9% | 85.5% |
| KS2 expected standard (RWM) | – | 63% |
| KS2 higher standard (RWM) | – | 12% |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 15.9 | – |
| Progress 8 | – | – |
| Grade 5+ English & maths | 0% | – |
| Grade 4+ English & maths | 0% | – |
| EBacc average points | 0.21 | – |
| A level points per entry | 45.2 | – |
| town | Southampton | Southampton |
| region | South East | South East |
| Website | www.kes.hants.sch.uk | www.stmarksschool.co.uk/ |
The verdict
- •St Mark's Church of England School scores higher on the Success Index (England) (50.2 vs 20.5).
- •St Mark's Church of England School is the larger school with 1,129 students compared with 989.
- •King Edward VI School is a independent school while St Mark's Church of England School is a local authority school, so fees and admission rules differ.
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 King Edward VI School better than St Mark's Church of England School?
On the Success Index (England), St Mark's Church of England School ranks higher (50.2 vs 20.5 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 King Edward VI School and St Mark's Church of England School?
About 920 m in a straight line, between Southampton and Southampton in South East.
Which has the better Pupils on roll?
King Edward VI School: 989. St Mark's Church of England School: 1,129. Number of pupils in the latest school census.
How do King Edward VI School and St Mark's Church of England School rank in South East?
King Edward VI School is 563rd of 679 and St Mark's Church of England School is 342nd of 679 among all-through schools in South East on the 2025 Success Index (England).