Sir Joseph Williamson's Mathematical School

Grammar school · Secondary, ages 11 to 18 · Boys only · Sixth form

Part of LEIGH ACADEMIES TRUST

Maidstone Road, Rochester, ME1 3EL

01634 844008 · School website · Map and directions

OfstedOutstandingInspected 21 March 2023
Grade 5 or above in English and maths94%England 45% · 2024/25
1st highest of 6 state secondary schools in Rochester.
Higher than 97% of 3,259 state secondary schools in England.
Pupils1,555Room for 1,280 Pupil numbers in January of each year: 1,359 in 2019, 1,430 in 2021, 1,464 in 2022, 1,479 in 2023, 1,507 in 2024, 1,528 in 2025, 1,555 in 2026. Across England, secondary state school pupil numbers were up 10% from 2019 to 2025.
First-choice applications per place1.7336 for 201 places, September 2026
1st highest of 7 state secondary schools in Rochester.
Higher than 95% of 3,219 state secondary schools in England.

Ofsted inspection

Ofsted rated this school Outstanding at the inspection that started on 21 March 2023.

This inspection used Ofsted's older format with four grades: Outstanding, Good, Requires improvement and Inadequate. Newer inspections use report cards. What changed.

AreaGrade
Quality of educationOutstanding
Behaviour and attitudesOutstanding
Personal developmentOutstanding
Leadership and managementOutstanding
Sixth formOutstanding
SafeguardingEffective

Read the full Ofsted reports for this school

Source: Ofsted state-funded schools inspection data.

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Results

GCSEs (key stage 4, age 16), 2024/25

216 pupils in this year group.

94% — 49 points above the Medway average, and 48 points above the England average.

MeasureThis schoolMedwayEngland
Grade 5 or above in English and maths 94% 44% 45%
Attainment 8 scoreAverage of each pupil's grades across 8 GCSE-level subjects, with English and maths counted twice. Around 50 means grade 5s on average. 69.5 46.1 46.1
EBacc average point scoreAverage points across the English Baccalaureate subjects: English, maths, sciences, a language and history or geography. 6.8 4.2 4.1
Grade 5 or above in English and maths, over time
20% 40% 60% 80% 100% England 2022/23: 45%England 2023/24: 46%England 2024/25: 45% This school 2022/23: 98%This school 2023/24: 98%This school 2024/25: 94% This school England 45% 2022/23 98% 2023/24 98% 2024/25 94%

Progress 8 isn't shown. DfE didn't publish it for 2024/25 because this year group's key stage 2 tests in 2020 were cancelled, and older progress scores aren't comparable.

Source: DfE key stage 4 performance tables, 2024/25. England figures are for state-funded schools.

After Year 11

Where pupils went next. DfE measures this for pupils who finished in an earlier year, so these figures describe a previous year group.

203 pupils in this year group.

97% — 6 points above the Medway average, and 5 points above the England average.

MeasureThis schoolMedwayEngland
Stayed in education, an apprenticeship or workPupils recorded in sustained education, apprenticeship or employment in the year after finishing Year 11. 97% 91% 92%
School sixth form 86% 54% 34%
Sixth form college 0% – 13%
Further education college 9% 28% 37%
Apprenticeship 0% 3% 3%
Work Not published 3% 3%

"Not published": Not published (DfE code SP).

Stayed in education, an apprenticeship or work, over time

2023/242024/25
99%97%

Source: DfE key stage 4 destination measures, 2024/25 performance tables. England figures are for state-funded schools.

A levels (16 to 18), 2024/25

217 A level students in this year group.

MeasureThis schoolMedwayEngland
Average A level grade B+ C+ B-
A level exams graded A* or A 46% 21% 26%
A level exams graded A* to B 75% 47% 53%
Average points per A level entryAn A* is 60 points, an A is 50, a B is 40, and so on down to 10 for an E. 42.3 32.7 35
Average points per A level entry, over time
30 35 40 45 England 2022/23: 34.2England 2023/24: 34.4England 2024/25: 35 This school 2022/23: 40.9This school 2023/24: 42.5This school 2024/25: 42.3 This school England 35 2022/23 40.9 2023/24 42.5 2024/25 42.3

A level subjects, 2024/25

20 subjects, 660 exams. England figures are for state-funded schools and colleges.

SubjectExamsA*A* or AEngland A* or A
Mathematics 149 25% 50% 40%
Psychology 84 12% 43% 19%
Biology 71 11% 42% 27%
Economics 67 22% 55% 26%
Chemistry 52 15% 48% 30%
Physical Education / Sports Studies 43 7% 28% 17%
Mathematics (Further) 32 47% 72% 59%
Physics 32 22% 47% 31%
Design and Technology (Product Design) 18 6% 28% 15%
English Literature 18 0% 11% 23%
Geography 18 17% 39% 23%
Government and Politics 18 11% 56% 26%
History 18 11% 28% 23%
Computer Studies / Computing 14 21% 57% 24%
Classical Civilisation 10 0% 30% 23%
Art and Design (Fine Art) 6 17% 67% 38%

Also taken, with too few exams for DfE to publish grades: Art and Design (Photography), French, Music, Turkish.

Source: DfE 16 to 18 qualification and subject data, 2024/25.

Source: DfE 16 to 18 performance tables, 2024/25. England figures are for state-funded schools.

After sixth form

Where pupils went next. DfE measures this for pupils who finished in an earlier year, so these figures describe a previous year group.

205 students in this year group.

86% — 10 points above the Medway average, and 7 points above the England average.

MeasureThis schoolMedwayEngland
Stayed in education, an apprenticeship or workStudents recorded in sustained education, apprenticeship or employment in the year after finishing 16 to 18 study. 86% 76% 79%
Apprenticeship 5% 9% 7%
Work 16% 33% 28%

Stayed in education, an apprenticeship or work, over time

2023/242024/25
89%86%

Source: DfE 16 to 18 destination measures, 2024/25 performance tables. England figures are for state-funded schools.

Going on to university

Where pupils went next. DfE measures this for pupils who finished in an earlier year, so these figures describe a previous year group.

198 students in this year group.

74% — 23 points above the Medway average, and 14 points above the England average.

MeasureThis schoolMedwayEngland
Went on to a degree or other higher education 74% 51% 60%
Went to one of the most selective third of universitiesDfE's grouping of universities by the typical entry grades of their students. 44% 11% 19%

Went on to a degree or other higher education, over time

2023/242024/25
81%74%

Source: DfE 16 to 18 progression to higher education or training, 2024/25 performance tables. England figures are for state-funded schools.

Admissions

Apply through the council where you live, even if the school is in a different council area. This school is in Medway. The national closing date for secondary applications is 31 October, and offers are sent on 1 March.

How hard is it to get in?

For the September 2026 intake there were about 1.5 first-choice applications for every place.

Places offered201
Families who put it first336
Of those, offered a place196 (58%)
Families who listed it at all740

First-choice applications per place: 2024: 1.6 · 2025: 1.7 · 2026: 1.7

This isn't your chance of getting a place. That depends on the school's admissions rules (for example siblings, distance or faith) and where you live. Source: DfE applications and offers, September 2026 intake.

This is a grammar school: places depend on passing an entrance test (the 11 plus), usually taken in September of Year 6.

Admissions dates and schools in Medway

Pupils, staff and SEND

PupilsThis schoolMedwayEngland
Eligible for free school meals in the last 6 years
7th highest of 7 state secondary schools in Rochester.
Higher than 8% of 3,448 state secondary schools in England.
10.8% 27.0%* 28.9%
With an education, health and care plan
6th highest of 7 state secondary schools in Rochester.
Higher than 5% of 3,448 state secondary schools in England.
0.7% 1.8%* 3.1%
Receiving special educational needs support
6th highest of 7 state secondary schools in Rochester.
Higher than 8% of 3,448 state secondary schools in England.
6.7% 12.7%* 13.4%
English as an additional language
Joint 3rd highest of 7 state secondary schools in Rochester.
Higher than 55% of 3,448 state secondary schools in England.
14.1% 13.7%* 19.2%
Overall absence (sessions missed)
1st lowest of 7 state secondary schools in Rochester.
Lower than 99% of 3,411 state secondary schools in England.
3.6% 7.7%* 8.4%
Persistently absent (missed 10% or more)
1st lowest of 7 state secondary schools in Rochester.
Lower than 99% of 3,411 state secondary schools in England.
5.0% 21.6%* 23.4%
Suspensions per 100 pupils
1st lowest of 7 state secondary schools in Rochester.
Lower than 97% of 3,445 state secondary schools in England.
0.9 23.1 21.2
Pupils suspended at least once
1st lowest of 7 state secondary schools in Rochester.
Lower than 97% of 3,445 state secondary schools in England.
0.7% 7.5% 7.3%
Pupils permanently excluded2 pupils 0.13% 0.30% 0.23%
Pupils per teacher
1st highest of 7 state secondary schools in Rochester.
Higher than 98% of 3,442 state secondary schools in England.
21.9 17.2 16.7
Pupils per adult (teachers and support staff)
1st highest of 7 state secondary schools in Rochester.
Higher than 98% of 3,445 state secondary schools in England.
16.1 12.4 11.8
Teachers who left during the year
5th highest of 7 state secondary schools in Rochester.
Higher than 32% of 3,430 state secondary schools in England.
10.6% 15.3%* 14.2%*

Comparisons are with secondary schools. Scales run from lower (left) to higher (right) figures. For absence and suspensions lower is better, so their scales run green to red; blue scales describe the school's pupils and staff and aren't good or bad. * Calculated by SchoolScores from the council's or England's schools, weighted by pupils (or teachers, for turnover); other figures are published by DfE. Sources: DfE school census 2024/25; DfE pupil absence 2024/25; DfE suspensions and permanent exclusions 2024/25; DfE school workforce census 2025/26; DfE teacher turnover 2024/25.

Nearby secondary schools

Straight-line distance. Distance isn't the same as a catchment area.

Questions parents ask

What is Sir Joseph Williamson's Mathematical School's Ofsted rating?

Sir Joseph Williamson's Mathematical School was rated Outstanding by Ofsted at its inspection in 21 March 2023.

How did Sir Joseph Williamson's Mathematical School do in its GCSEs?

In 2024/25, 94% of pupils grade 5 or above in English and maths, 48 points above the England average of 45%.

Is Sir Joseph Williamson's Mathematical School oversubscribed?

For the September 2026 intake, 336 families put Sir Joseph Williamson's Mathematical School as their first choice for 201 places: about 1.5 first-choice applications for every place. 196 of those families were offered a place. Whether you get a place depends on the school's admissions rules and where you live.

Sources

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Page updated 26 September 2026.