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The Portsmouth Grammar School

Portsmouth, PO1 2LNAll-throughAges 2–19MixedPrivate

About The Portsmouth Grammar School

The Portsmouth Grammar School is an independent day school in Portsmouth, South East, for pupils aged 2 to 19 for boys and girls. GIAS records 973 pupils on roll and a published capacity of 1,789.

Figures can refer to different reporting periods. Check the date and source shown beside each section. How Classpot uses published data.

GIAS school facts

Official identity and contact facts; operational fees and services appear only when separately reviewed.

Age range
2–19
Education stages
Early years, Primary, Secondary, Sixth form
Gender
Mixed
Pupils on roll
973
Published capacity
1,789
Inspectorate
ISI inspection regime
Day-school evidence
No boarders; Does not have boarders
Area classification
Urban: Nearer to a major town or city
Address
High Street, Old Portsmouth, Portsmouth, Portsmouth, PO1 2LN
Telephone
02392360036
School website
Visit official website

Source: GIAS establishment record · published 20/08/2026

Pupils and staffing

Official figures for 2025/26.

Pupils
973
Girls / boys
414 / 559
Teachers (headcount)
126
Teachers (FTE)
105
Pupils per teacher FTE — not class size
9.3
Area classification
Urban: Nearer to a major town or city

Source: official publication (04/06/2026) · official publication (04/06/2026)

Destinations of 2022/23 leavers

Historical DfE destination measures; these do not describe the current leaving cohort.

Level 3 cohort
135
Sustained destination
88.1%
Higher education
72.6%

Source: official publication (23/04/2026)

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