Boston High School
School summary
A selective girls' grammar school in Boston, Boston High School draws able pupils from across the surrounding area through the Lincolnshire Consortium of Grammar Schools. With 816 girls on roll against a capacity of 811, the school is running fractionally over its intended size, a sign of steady demand for its 108 annual places. A notable 22.7% of pupils speak English as an additional language, while 11.9% are eligible for free school meals, pointing to a more varied intake than its selective status might suggest.
How hard is it to get in?
Moderate · 1 of 5 on the Passmate scale. Entry is selective, but demand for the 108 Year 7 places is more manageable than at most selective schools - a solid qualifying performance is usually what matters.
Where every mark matters.
Places are limited and demand is high, so exam performance is what sets candidates apart. Passmate turns the months ahead into ten focused minutes a day on the exact topics this school tests.
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Latest results
Attainment 8
58.8
National average 46.9
GCSE grade 5+ (English & Maths)
77%
National average 47%
Teaching & academics
Results sit comfortably above national benchmarks: the average Attainment 8 score of 58.8 outstrips the national figure of 46.9, and 77% of girls secure grade 5 or above in English and Maths, compared with 47% nationally. A pupil-to-teacher ratio of around 20.7 is typical for a medium-sized state school of this kind. As a selective grammar, it suits academically confident girls who will thrive in a results-focused setting.
Languages
GCSE subjects
Headteacher · A-M Franks
Sixth form
A-level subjects
School life & ethos
- Founded
- 1921
- Religious character
- None
- Boarding
- No
- SEN support
- 7.23%
- EHC plans
- 0.37%
- English as additional language
- 22.7%
- Free school meals
- 11.9%
Mobile phone policy
Boston High School operates a "Never Seen, Never Heard" approach: mobile phones and smart devices must be switched off, out of sight and not used between 8:40am and 3:30pm while on the school site. Pupils may bring phones for travel but at their own risk, and breaches are sanctioned by confiscation and behaviour points. Sixth Form (KS5) students may use phones only in the Sixth Form common rooms or when directed by a teacher.
Schools nearby
The Boston Grammar School
Boston, East Midlands
Spalding High School
Spalding, East Midlands
Spalding Grammar School
Spalding, East Midlands
Queen Elizabeth's Grammar School, Horncastle
Horncastle, East Midlands
Carre's Grammar School
Sleaford, East Midlands
Kesteven and Sleaford High School Selective Academy
Sleaford, East Midlands
Watch Passmate decide how to teach.
Answer as a child would. Left: what they see. Right: what it learns about them.
A strong-performing girls' grammar where consistently high GCSE outcomes meet a genuinely mixed pupil body.
That’s where Passmate comes in. Tutoring is the most effective thing in a child’s preparation - a well-tutored child can outperform the vast majority of their peers. Passmate works alongside your tutor, not instead of them: it learns how your child thinks, finds the gaps, and shows the tutor exactly where to spend each session - so the limited time you have lands on what actually decides a place.
Works alongside your child’s tutor - not instead of them.
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Boston High School 11+: frequently asked questions
Passmate rating: benchmarked against every selective school in England using official admissions data. It measures demand for places, not school quality. Updated July 2026.
Compiled from public data. Last checked 5 June 2026.