Sir Joseph Williamson's Mathematical School
🇬🇧 Official data · 2025Rochester, South East ME1 3EL · Medway
#38 of 679 secondary schools in South East
#125 of 4,090 nationally
About Sir Joseph Williamson's Mathematical School
Sir Joseph Williamson's Mathematical School is a academy secondary located in Rochester, in the Medway local authority of South East, England. It caters for Ages 11–18 and is a boys' school. In 2025 it enrolled 1,555 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 94.5 out of 100, placing it in the top 5% of secondary schools in England and 38th of 679 ranked secondary schools in South East. Its strongest component is grade 5+ in english & maths (97th percentile), and its weakest is a level points per entry (88th percentile).
Other published figures: pupils on roll 1,555; capacity filled 121.5%; grade 4+ english & maths 97.2%; ebacc average points 6.82.
There are 45 schools in Rochester; Sir Joseph Williamson's Mathematical School ranks 2nd of 44 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%)69.5
- Grade 5+ in English & maths (15%)93.5%
- A level points per entry (10%)42.3
- Community advantage (fewer pupils on free school meals) (15%)11.7%
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 Sir Joseph Williamson's Mathematical School by the official sources.
- Pupils on roll
- 1,555
- Number of pupils in the latest school census.
- Free school meals
- 11.7%
- Percentage of pupils eligible for free school meals.
- Capacity filled
- 121.5%
- Pupils on roll as a share of the school's reported capacity.
- Attainment 8
- 69.5
- Average GCSE points across eight subjects.
- Grade 5+ English & maths
- 93.5%
- Share of pupils with a strong pass in both English and maths GCSE.
- Grade 4+ English & maths
- 97.2%
- Share of pupils with a standard pass in both English and maths GCSE.
- EBacc average points
- 6.82
- Average point score across the English Baccalaureate subjects.
- A level points per entry
- 42.3
- Average points per A level entry (A* = 60, E = 10).
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Schools near Sir Joseph Williamson's Mathematical School
Closest schools by straight-line distance, with their Success Index (England).
The Rochester Grammar School
Rochester · Academy secondary · Ages 11–18
1,206 students · 203 m away
St William of Perth Roman Catholic Primary School
Rochester · Academy primary · Ages 4–11
211 students · 392 m away
Delce Academy
Rochester · Academy primary · Ages 5–11
287 students · 444 m away
Crest Infant School
Rochester · Local authority primary · Ages 4–7
121 students · 554 m away
The Thomas Aveling School
Rochester · Academy secondary · Ages 11–18
1,201 students · 735 m away
St Peter's Infant School
Rochester · Local authority primary · Ages 4–7
60 students · 824 m away
Warren Wood Primary School
Rochester · Academy primary · Ages 3–11
458 students · 878 m away
Oasis Restore
London · Academy sixth form · Ages 12–17
· 964 m away
Balfour Infant School
Rochester · Local authority primary · Ages 5–7
244 students · 1.1 km away
Balfour Junior School
Chatham · Academy primary · Ages 7–11
480 students · 1.2 km away
Similar schools
Academy secondary schools in South East with a comparable Pupils on roll.
Valley Park School
Maidstone · Academy secondary · Ages 11–18
1,555 students
The Sittingbourne School
Sittingbourne · Academy secondary · Ages 11–19
1,556 students
Furze Platt Senior School
Maidenhead · Academy secondary · Ages 11–18
1,556 students
Highworth Grammar School
Ashford · Academy secondary · Ages 11–18
1,553 students
The Warriner School
Banbury · Academy secondary · Ages 11–18
1,553 students
St Crispin's School
Wokingham · Academy secondary · Ages 11–18
1,549 students
Frequently asked questions
Is Sir Joseph Williamson's Mathematical School a good school?
Sir Joseph Williamson's Mathematical School has a Success Index (England) of 94.5 out of 100 (Top 5% of secondary schools in England) and ranks #38 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 Sir Joseph Williamson's Mathematical School rank in South East?
Sir Joseph Williamson's Mathematical School ranks #38 of 679 secondary schools in South East and #125 of 4,090 nationally on the Success Index (England) (2025 data).
How many students attend Sir Joseph Williamson's Mathematical School?
Sir Joseph Williamson's Mathematical School had 1,555 students in 2025.
Is Sir Joseph Williamson's Mathematical School a primary school or a secondary school?
Sir Joseph Williamson's Mathematical School is classified as a secondary covering Ages 11–18. It is a academy school.
What other schools are near Sir Joseph Williamson's Mathematical School?
There are 10 schools within 15 km of Sir Joseph Williamson's Mathematical School; they are listed on this page with their Success Index (England) and distance, and can be compared side by side.