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Academy schoolSecondaryAges 11–16

Thornden School

🇬🇧 Official data · 2025Eastleigh, South East SO53 2DW · Hampshire

93.1/ 100
Success Index (England)
Top 5%

#54 of 679 secondary schools in South East
#186 of 4,090 nationally

How is this calculated?
Students
1,440
Pupils on roll
1,440
Source: GIAS
Free school meals
6.5%
Source: GIAS
Capacity filled
102.9%
Source: GIAS

About Thornden School

Thornden School is a academy secondary located in Eastleigh, in the Hampshire local authority of South East, England. It caters for Ages 11–16. In 2025 it enrolled 1,440 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 93.1 out of 100, placing it in the top 5% of secondary schools in England and 54th of 679 ranked secondary schools in South East. Its strongest component is community advantage (fewer pupils on free school meals) (97th percentile), and its weakest is grade 5+ in english & maths (91th percentile).

Other published figures: pupils on roll 1,440; capacity filled 102.9%; grade 4+ english & maths 87.6%; ebacc average points 5.54.

There are 27 schools in Eastleigh; Thornden School ranks 2nd of 26 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%)59.9
  • Grade 5+ in English & maths (15%)72.8%
  • A level points per entry (10%)–
  • Community advantage (fewer pupils on free school meals) (15%)6.5%

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 Thornden School by the official sources.

Pupils on roll
1,440
Number of pupils in the latest school census.
Free school meals
6.5%
Percentage of pupils eligible for free school meals.
Capacity filled
102.9%
Pupils on roll as a share of the school's reported capacity.
Attainment 8
59.9
Average GCSE points across eight subjects.
Grade 5+ English & maths
72.8%
Share of pupils with a strong pass in both English and maths GCSE.
Grade 4+ English & maths
87.6%
Share of pupils with a standard pass in both English and maths GCSE.
EBacc average points
5.54
Average point score across the English Baccalaureate subjects.

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Schools near Thornden School

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

Similar schools

Academy secondary schools in South East with a comparable Pupils on roll.

Frequently asked questions

Is Thornden School a good school?

Thornden School has a Success Index (England) of 93.1 out of 100 (Top 5% of secondary schools in England) and ranks #54 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 Thornden School rank in South East?

Thornden School ranks #54 of 679 secondary schools in South East and #186 of 4,090 nationally on the Success Index (England) (2025 data).

How many students attend Thornden School?

Thornden School had 1,440 students in 2025.

Is Thornden School a primary school or a secondary school?

Thornden School is classified as a secondary covering Ages 11–16. It is a academy school.

What other schools are near Thornden School?

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