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Independent schoolAll-throughAges 3–19Girls

Thornton College

🇬🇧 Official data · 2025Milton Keynes, South East MK17 0HJ · Buckinghamshire

89.1/ 100
Success Index (England)
Top 10%

#85 of 679 all-through schools in South East
#297 of 4,090 nationally

How is this calculated?
Students
315
Pupils on roll
315
Source: GIAS
Capacity filled
54.3%
Source: GIAS
Attainment 8
62.2
Source: DfE

About Thornton College

Thornton College is a independent all-through located in Milton Keynes, in the Buckinghamshire local authority of South East, England. It caters for Ages 3–19 and is a girls' school. In 2025 it enrolled 315 students. Fee-paying independent schools. Most do not publish Key Stage results in the government performance tables.

Its Success Index (England) is 89.1 out of 100, placing it in the top 10% of all-through schools in England and 85th of 679 ranked all-through schools in South East. Its strongest component is attainment 8 (94th percentile), and its weakest is a level points per entry (82th percentile).

Other published figures: pupils on roll 315; capacity filled 54.3%; grade 4+ english & maths 87%; ebacc average points 5.40.

There are 100 schools in Milton Keynes; Thornton College ranks 6th of 94 scored schools there.

Success Index (England) breakdown

Each component is a percentile against all-through 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%)62.2
  • Grade 5+ in English & maths (15%)63%
  • A level points per entry (10%)39.8
  • Community advantage (fewer pupils on free school meals) (15%)–

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 Thornton College by the official sources.

Pupils on roll
315
Number of pupils in the latest school census.
Capacity filled
54.3%
Pupils on roll as a share of the school's reported capacity.
Attainment 8
62.2
Average GCSE points across eight subjects.
Grade 5+ English & maths
63%
Share of pupils with a strong pass in both English and maths GCSE.
Grade 4+ English & maths
87%
Share of pupils with a standard pass in both English and maths GCSE.
EBacc average points
5.40
Average point score across the English Baccalaureate subjects.
A level points per entry
39.8
Average points per A level entry (A* = 60, E = 10).

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Schools near Thornton College

Closest schools by straight-line distance, with their Success Index (England).

Similar schools

Independent all-through schools in South East with a comparable Pupils on roll.

Frequently asked questions

Is Thornton College a good school?

Thornton College has a Success Index (England) of 89.1 out of 100 (Top 10% of all-through schools in England) and ranks #85 of 679 in South East. 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 Thornton College rank in South East?

Thornton College ranks #85 of 679 all-through schools in South East and #297 of 4,090 nationally on the Success Index (England) (2025 data).

How many students attend Thornton College?

Thornton College had 315 students in 2025.

Is Thornton College a primary school or a secondary school?

Thornton College is classified as a all-through covering Ages 3–19. It is a independent school.

What other schools are near Thornton College?

There are 10 schools within 15 km of Thornton College; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.