Glenthorne High School
#59 of 640 secondary schools in London
#283 of 4,090 nationally
About Glenthorne High School
Glenthorne High School is a academy secondary located in Sutton, in the Sutton local authority of London, England. It caters for Ages 11–18. In 2025 it enrolled 1,754 students. Academies and free schools are state-funded and free to attend, run by academy trusts rather than the local authority.
Its Success Index (England) is 89.5 out of 100, placing it in the top 10% of secondary schools in England and 59th of 640 ranked secondary schools in London. Its strongest component is attainment 8 (93th percentile), and its weakest is a level points per entry (78th percentile).
Other published figures: pupils on roll 1,754; capacity filled 112.6%; grade 4+ english & maths 87.8%; ebacc average points 5.80.
There are 21 schools in Sutton; Glenthorne High School ranks 7th of 20 scored schools there.
Success Index (England) breakdown
Each component is a percentile against secondary 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%)61.6
- Grade 5+ in English & maths (15%)75.2%
- A level points per entry (10%)38.9
- Community advantage (fewer pupils on free school meals) (15%)14%
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 Glenthorne High School by the official sources.
- Pupils on roll
- 1,754
- Number of pupils in the latest school census.
- Free school meals
- 14%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 112.6%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 61.6
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 75.2%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 87.8%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 5.80
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 38.9
- Average points per A level entry (A* = 60, E = 10).
Free academic assessment
Is your child on track for their SATs and GCSEs?
Success Tutoring offers personalised English and maths tutoring mapped to the National Curriculum. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Glenthorne High School
Closest schools by straight-line distance, with their Success Index (England).
Abbey Primary School
Morden · Academy primary · Ages 2–11
468 students · 381 m away
Westbourne Primary School
Sutton · Academy primary · Ages 3–11
656 students · 925 m away
Brookfield Primary Academy
Sutton · Academy primary · Ages 2–11
450 students · 996 m away
All Saints Benhilton CofE Primary School
Sutton · Local authority primary · Ages 3–11
462 students · 1.2 km away
Cheam Park Farm Primary Academy
Sutton · Academy primary · Ages 4–11
916 students · 1.2 km away
Malmesbury Primary School
Morden · Local authority primary · Ages 3–11
347 students · 1.2 km away
Morden Primary School
Morden · Local authority primary · Ages 3–11
222 students · 1.3 km away
Greenshaw High School
Sutton · Academy secondary · Ages 11–18
1,977 students · 1.4 km away
St Cecilia's Catholic Primary School
Sutton · Academy primary · Ages 3–11
465 students · 1.5 km away
Tweeddale Primary School
Carshalton · Academy primary · Ages 3–11
376 students · 1.5 km away
Similar schools
Academy secondary schools in London with a comparable Pupils on roll.
London Academy
Edgware · Academy all-through · Ages 4–19
1,749 students
Featherstone High School
Southall · Academy secondary · Ages 11–18
1,748 students
Dunraven School
LONDON · Academy all-through · Ages 4–18
1,744 students
Leigh Stationers' Academy
London · Academy secondary · Ages 11–18
1,764 students
Ashmole Academy
London · Academy secondary · Ages 11–18
1,767 students
Hayes School
Bromley · Academy secondary · Ages 11–18
1,770 students
Frequently asked questions
Is Glenthorne High School a good school?
Glenthorne High School has a Success Index (England) of 89.5 out of 100 (Top 10% of secondary schools in England) and ranks #59 of 640 in London. 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 Glenthorne High School rank in London?
Glenthorne High School ranks #59 of 640 secondary schools in London and #283 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Glenthorne High School?
Glenthorne High School had 1,754 students in 2025.
Is Glenthorne High School a primary school or a secondary school?
Glenthorne High School is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near Glenthorne High School?
There are 10 schools within 15 km of Glenthorne High School; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.