Mayville High SchoolThe Portsmouth Grammar School
Inspection, results, pupils and attendance side by side.
Summary of the comparison
This page compares Mayville High School and The Portsmouth Grammar School.
Neither school has a composite score. Our score needs published attainment data, which is not available for every school or every nation.
On GCSE Attainment 8, the latest published figures are 29.0 for Mayville High School and 46.6 for The Portsmouth Grammar School.
GCSE Attainment 8 has fallen at Mayville High School (35.0 in 2021-22, 29.0 in 2025-26) and has held broadly level at The Portsmouth Grammar School (45.7 in 2021-22, 46.6 in 2025-26).
Side-by-side comparison
| Measure | SouthseaMayville High School | PortsmouthThe Portsmouth Grammar School | England average |
|---|---|---|---|
| Overview | |||
| Our score | Not scored | Not scored | |
| Local ranking | Not ranked | Not ranked | |
| Inspection | Independent School | Independent School | |
| School type | Other independent school | Other independent school | |
| Age range | 2-16 | 2-19 | |
| Gender | Mixed | Mixed | |
| Pupils on roll | 405 | 973 | |
| Capacity | 600 | 1,789 | |
| Location | Southsea, PO5 2PE | Portsmouth, PO1 2LN | |
| GCSE results | |||
| Attainment 8 | 29.0 | 46.6 Stronger figure | 46.2 |
| Grade 5+ in English & maths | 0.0% | 0.0% | 46.3% |
| Grade 4+ in English & maths | 0.0% | 0.0% | 64.8% |
| Cohort | 58 | 125 | |
| A-level results | |||
| A-level entries | Not reported | 133 | |
| A-level average points | Not reported | 46.7 | 35.0 |
| A-level average grade | Not reported | A- | |
| Best 3 A-levels points | Not reported | 47.0 | 35.8 |
| AAB+ incl. facilitating subjects | Not reported | 48.0% | 17.5% |
| Pupils | |||
| Pupils in the census | 458 | 1,142 | |
| Free school meals (ever 6) | 0.0% | 0.0% | |
| SEN support | 24.9% | 27.6% | |
| SEN with an EHC plan | 1.8% | 0.1% | |
marks the stronger figure on measures with a clear direction. Rows describing a school's intake, such as free school meals, English as an additional language and SEN, carry no marker: they describe who a school serves, not how well it serves them.
Historical trends
Each solid line is one school; the dashed line is the national average.
GCSE Attainment 8
Pupils on roll
Full profiles: Mayville High School · The Portsmouth Grammar School