Sir Joseph Williamson's Mathematical School is a state-funded secondary school in Medway, South East, for pupils aged 11 to 18 for boys. DfE data records 1,555 pupils on roll and a published capacity of 1,280.
The latest recorded Ofsted overall judgement is Outstanding (21 Mar 2023). The published Attainment 8 score was 69.5 for 2024/25. The published A-level average grade was B+ for 2024/25. Admissions data records 336 first-preference applications and 201 offers made on national offer day for 2026/27.
Reporting periods vary by source — Methodology.
School admissions data, what the Ofsted report means for you, and how it compares to nearby schools.
Outstanding
Based on 21 Mar 2023 · Legacy grading · Open inspection report ↗
| Area | Judgement |
|---|---|
| Quality of education | Outstanding |
| Behaviour & attitudes | Outstanding |
| Personal development | Outstanding |
| Leadership & management | Outstanding |
| Sixth-form provision | Outstanding |
| Area | Judgement |
|---|---|
| Overall effectiveness | Outstanding |
| Leadership & management | Outstanding |
| Sixth-form provision | Outstanding |
Published 18 May 2023.
Ofsted legacy grades; compare inspection dates and frameworks.
Distance unavailable; check admission criteria with the school or council.
| Measure | Value |
|---|---|
| School’s local authority | Medway |
| Applications open | Usually 1 September 2026 |
| Application deadline | 31 October 2026 |
| National offer day | 1 March 2027 |
Apply through your home council; confirm local dates and any extra school forms.
| Measure | Value |
|---|---|
| Offers made on National Offer Day | 201 |
| First-preference applications | 336 |
| Applications (all preferences) | 740 |
| First-preference offers | 196 |
Source: Published admissions data; follow each measure’s labelled basis, including all preferences where shown.
| Measure | Value |
|---|---|
| Attainment 8 (average score) | 69.5 |
| English & maths: grades 9–4 | 97.2% |
| English & maths: grades 9–5 | 93.5% |
| EBacc entry | 98.6% |
| EBacc grades 9–4 | 88.9% |
| EBacc grades 9–5 | 79.2% |
| EBacc average point score | 6.82 |
DfE · 2024/25; compare the same year and measure (— unavailable or suppressed).
| Measure | Value |
|---|---|
| Average points per entry | 42.32 |
| Best three A-levels: average points | 41.86 |
| Value added | 0.2 |
| Value added: lower confidence limit | 0.11 |
| Value added: upper confidence limit | 0.28 |
| AAB or higher (including two facilitating subjects) | 27.6% |
| Pupils | 217 |
| Average grade | B+ |
| Best three A-levels: average grade | B+ |
| Published progress band | Above average |
DfE · 2024/25; compare the same year and measure (— unavailable or suppressed).
| Destination | Pupils |
|---|---|
| This school’s sixth form | 86.2% |
| Sixth-form college | 0% |
| Further education college | 8.9% |
| Apprenticeship | 0% |
| Employment | 0.5% |
| Not sustained | 2% |
| Unknown | 1% |
Cohort: 203 pupils · Sustained education or employment: 97%
DfE destinations follow school leavers, not current pupils.
| Destination | Pupils |
|---|---|
| Higher education | 66.3% |
| Further education | 0% |
| Other education | 0.5% |
| Apprenticeship | 4% |
| Employment | 15.8% |
| Not sustained | 7.9% |
| Unknown | 5.4% |
Cohort: 202 pupils · Sustained education or employment: 86.6%
DfE destinations follow school leavers, not current pupils.
2024/25 · Published entries
DfE subject entries; pupils may take multiple subjects.
22.3 pupils per qualified teacher
2025/26 · Full-time equivalent teachers, not class size.
| Measure | Value |
|---|---|
| Authorised absence2024/25 | 3.27% |
| Unauthorised absence2024/25 | 0.38% |
| Group | Pupils |
|---|---|
| White British | 39.2% |
| White other | 5.2% |
| Mixed | 10.1% |
| Asian | 18.4% |
| Black | 23.3% |
| Other | 1.9% |
DfE school, census, workforce, absence and exclusion data; periods vary, and missing values are not zero.
DfE data; confirm current support with the school's SENCO.
| Measure | Value |
|---|---|
| Teaching hours | 08:40 – 15:10 |
Source: School website · checked 2026-05-19; confirm current arrangements.
Check the school website for term dates, holidays and INSET days.
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