Portsmouth High School GDST
🇬🇧 Official data · 2025Southsea, South East PO5 3EQ · Portsmouth
#593 of 679 all-through schools in South East
#3630 of 4,090 nationally
About Portsmouth High School GDST
Portsmouth High School GDST is a independent all-through located in Southsea, in the Portsmouth local authority of South East, England. It caters for Ages 2–19 and is a girls' school. In 2025 it enrolled 436 students. Fee-paying independent schools. Most do not publish Key Stage results in the government performance tables.
Its Success Index (England) is 18.8 out of 100, placing it in the lower 50% of all-through schools in England and 593rd of 679 ranked all-through schools in South East. Its strongest component is a level points per entry (87th percentile), and its weakest is attainment 8 (3th percentile).
Other published figures: pupils on roll 436; capacity filled 67.1%; grade 4+ english & maths 0%; ebacc average points 0.10.
There are 14 schools in Southsea; Portsmouth High School GDST ranks 13th of 14 scored schools there.
Success Index (England) breakdown
Each component is a percentile against all-through 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%)12.4
- Grade 5+ in English & maths (15%)0%
- A level points per entry (10%)41.8
- Community advantage (fewer pupils on free school meals) (15%)–
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 Portsmouth High School GDST by the official sources.
- Pupils on roll
- 436
- Number of pupils in the latest school census.
- Capacity filled
- 67.1%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 12.4
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 0%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 0%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 0.10
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 41.8
- Average points per A level entry (A* = 60, E = 10).
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Schools near Portsmouth High School GDST
Closest schools by straight-line distance, with their Success Index (England).
St Jude's CofE Primary School
Portsmouth · Local authority primary · Ages 4–11
407 students · 497 m away
Cottage Grove Primary School and Nursery
Southsea · Academy primary · Ages 2–11
462 students · 541 m away
The Portsmouth Grammar School
Portsmouth · Independent all-through · Ages 2–19
973 students · 620 m away
Ark Charter Academy
Southsea · Academy secondary · Ages 11–16
883 students · 982 m away
Southsea Infant School
Southsea · Local authority primary · Ages 4–7
167 students · 1.1 km away
St Swithun's Catholic Primary School
Southsea · Local authority primary · Ages 2–11
351 students · 1.1 km away
Ark Ayrton Primary Academy
Portsmouth · Academy primary · Ages 2–11
495 students · 1.2 km away
Mayville High School
Southsea · Independent all-through · Ages 2–16
405 students · 1.2 km away
St Edmund's Catholic School
Portsmouth · Local authority secondary · Ages 11–16
1,157 students · 1.3 km away
St George's Beneficial Church of England (Voluntary Controlled) Primary School
Portsmouth · Local authority primary · Ages 3–11
274 students · 1.4 km away
Similar schools
Independent all-through schools in South East with a comparable Pupils on roll.
Farleigh School
Andover · Independent all-through · Ages 2–14
435 students
Holmewood House School
Tunbridge Wells · Independent all-through · Ages 2–13
439 students
Burgess Hill Girls
Burgess Hill · Independent all-through · Ages 2–19
440 students
Bishopsgate School
Englefield Green · Independent all-through · Ages 3–14
431 students
St Gabriel's School
Berkshire · Independent all-through · Ages 0–18
442 students
Brighton College Prep Handcross
Haywards Heath · Independent all-through · Ages 2–14
443 students
Frequently asked questions
Is Portsmouth High School GDST a good school?
Portsmouth High School GDST has a Success Index (England) of 18.8 out of 100 (Lower 50% of all-through schools in England) and ranks #593 of 679 in South East. 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 Portsmouth High School GDST rank in South East?
Portsmouth High School GDST ranks #593 of 679 all-through schools in South East and #3630 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Portsmouth High School GDST?
Portsmouth High School GDST had 436 students in 2025.
Is Portsmouth High School GDST a primary school or a secondary school?
Portsmouth High School GDST is classified as a all-through covering Ages 2–19. It is a independent school.
What other schools are near Portsmouth High School GDST?
There are 10 schools within 15 km of Portsmouth High School GDST; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.