
Potters Bar, Hertfordshire · EN6 5QT
AAB+ A-level
18.8%
9–7 GCSE
53.1%
Day fees
£18k
Inspection
Not yet inspected
St John's is a day-only, independent all-through school in suburban Potters Bar serving ages 3–18. With 486 pupils and strong academic results—including 1st in Borough League Tables 19 times in 23 years and 39th UK ranking for A-Levels—the school emphasises breadth across sports, music, drama and pastoral care. A notably stable, non-selective community school that draws families from North London and Hertfordshire commuter belt.
Who thrives here
Pupils who thrive in a traditional, well-resourced independent day school with academic ambition balanced by broad co-curricular engagement. Families valuing continuity from nursery through sixth form and a community-focused ethos will find it appealing.
Percentiles within UK independent + grammar schools we track.
The Ridgeway
Potters Bar, Hertfordshire
EN6 5QT
Nearest stations
Day fees at St John's Preparatory and Senior School are approximately £17,550 per year (2026/27).
St John's Preparatory and Senior School admits pupils at 3+, 4+, 7+, 8+, 11+, 13+, 16+. Entry is assessed by 11+ Selective Examination. See the Admissions section above for open days and key dates.
At St John's Preparatory and Senior School, 18.8% of A-levels were graded A*–B and 53.1% of GCSEs were grade 7/A or above. Full results are in the Results section above.
St John's Preparatory and Senior School is a day school in Potters Bar and does not offer boarding.
Frequently praised
✓Consistent academic excellence and borough/regional rankings; strong value-added progress across cohorts
✓Breadth of co-curricular offer (26 sports, music, drama, outdoor education) prevents narrowness and encourages all-round development
✓Stable, continuous all-through provision from age 3–18; strong pastoral care and community ethos
Common concerns
!Not yet inspected by Ofsted; no external quality assurance benchmarking available beyond exam results and internal reports