Mayville High School vs Portsmouth High School GDST
A head-to-head comparison of two all-through schools in South East, England, 1.2 km apart, using official English 2025 data. The better value in each row is highlighted.
Mayville High School
Southsea · Independent all-through · Ages 2–16
405 students
Portsmouth High School GDST
Southsea · Independent all-through · Ages 2–19
436 students
| Measure | Mayville High School Southsea, South East | Portsmouth High School GDST Southsea, South East |
|---|---|---|
| Success Index (England) | 9 Lower 50% | 19 Lower 50% |
| Region rank | #665 of 679 | #593 of 679 |
| National rank | #3992 of 4,090 | #3630 of 4,090 |
| Sector | Independent | Independent |
| Type | All-through | All-through |
| Year range | Ages 2–16 | Ages 2–19 |
| Students | 405 | 436 |
| Pupils on roll | 405 | 436 |
| Free school meals | – | – |
| Capacity filled | 67.5% | 67.1% |
| KS2 expected standard (RWM) | – | – |
| KS2 higher standard (RWM) | – | – |
| KS2 reading progress | – | – |
| KS2 writing progress | – | – |
| KS2 maths progress | – | – |
| Attainment 8 | 31.7 | 12.4 |
| Progress 8 | – | – |
| Grade 5+ English & maths | 0% | 0% |
| Grade 4+ English & maths | 0% | 0% |
| EBacc average points | 2.62 | 0.10 |
| A level points per entry | – | 41.8 |
| town | Southsea | Southsea |
| region | South East | South East |
| Website | www.mayvillehighschool.com/ | www.portsmouthhigh.co.uk/ |
The verdict
- •Portsmouth High School GDST scores higher on the Success Index (England) (18.8 vs 8.6).
- •Portsmouth High School GDST is the larger school with 436 students compared with 405.
- •Mayville High School is co-educational and Portsmouth High School GDST 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 Mayville High School better than Portsmouth High School GDST?
On the Success Index (England), Portsmouth High School GDST ranks higher (18.8 vs 8.6 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 Mayville High School and Portsmouth High School GDST?
About 1.2 km in a straight line, between Southsea and Southsea in South East.
Which has the better Pupils on roll?
Mayville High School: 405. Portsmouth High School GDST: 436. Number of pupils in the latest school census.
How do Mayville High School and Portsmouth High School GDST rank in South East?
Mayville High School is 665th of 679 and Portsmouth High School GDST is 593rd of 679 among all-through schools in South East on the 2025 Success Index (England).