St John's Preparatory and Senior School
Potters Bar, Enfield, Greater London · EN6 5QT
Academic results set St John's apart: pupils here achieve an average Attainment 8 score of 68.1, well above the national figure of 46.9. An independent, co-educational school in Potters Bar, it offers a continuous path from preparatory through to senior years, with A-levels available beyond GCSE. With around 497 pupils on roll, it sits in the smaller size band, which tends to mean a close-knit community where individual pupils are known well. The school has no religious affiliation and does not offer boarding.
497
Pupils
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Open in Google Maps ↗Overview & data
- Gender
- Mixed
- Type
- independent (fee-paying) school
- Pupils
- 497
- Location
- Potters Bar, Enfield, Greater London
- Website
- www.stjohnsprepandseniorschool.co.uk
Entrance & admissions
- Entry age
- 11
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Latest results
Attainment 8
68.1
National average 46.9
GCSE grade 5+ (English & Maths)
98%
National average 47%
Teaching & academics
The headline outcome is striking: 98% of pupils gain grade 5 or above in English and Maths, against a national average of 47%. That, combined with an Attainment 8 score more than 20 points above the national figure, points to a strong, consistently academic environment. Pupils can progress to A-levels on site, making it a school where families can plan for the full secondary journey. Inspection is carried out by the ISI.
Sixth form
Qualifications offered
Ethos & heritage
- Religious character
- None
- Boarding
- No
Inspection reports
- Last inspected
- 14 June 2023
The last word
A small independent school in Potters Bar delivering exceptional GCSE results, well suited to families seeking academic rigour from 11 through to A-level.
The Passmate verdict
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St John's Preparatory and Senior School 11+: frequently asked questions
Where is St John's Preparatory and Senior School located?
St John's Preparatory and Senior School is located at The Ridgeway, Potters Bar, EN6 5QT.
What type of school is St John's Preparatory and Senior School?
St John's Preparatory and Senior School is an independent (fee-paying) school in Greater London.
How many pupils attend St John's Preparatory and Senior School?
St John's Preparatory and Senior School has approximately 497 pupils on roll.
Compiled from public data. Last checked June 2026.