Secondary school
Sources and method
This school
URN 136662 · LAESTAB 887/4530 · Source: Get Information about Schools, DfE, OGL v3.0 (record under Visit & links).
Top school 2024/25
Attainment 8: P94.2 of South East secondaries (2024/25) · Grade 5+ English and maths: P94.6 (2024/25) · Ofsted Outstanding (2023).
Top 10% of South East secondaries on Attainment 8 and top 25% on Grade 5+ English and maths (2024/25, cohort 30+), and Ofsted Good or better or a report card with nothing below Expected. Separate from the map plaque, which only tiers the school's South East rank by England results (Top 1/3/5/10/25%).
Against South East and Medway
Track: South East's middle 80% (10th to 90th percentile); L = South East median; M = Medway median, shown when 10 or more of its schools have a figure; the dot is this school.
South East state schools in Close Knit with a published figure, same phase (primary or secondary) and year; the borough median only when 10 or more of its schools have one. 10th, 50th and 90th percentiles with linear interpolation (PostgreSQL percentile_cont).
Colour only where lower or higher is clearly better (absence: lower): blue = better than the South East median, red = in South East's worst 10%.
Money: Compared only with academies' accounts (AAR), same academic year.
Results
England rank: Key stage 4: Attainment 8 average score. Ranked among 3,280 secondaries in England, 2024/25. England's state-funded mainstream schools with a published figure that year (suppressed or missing figures are left out); equal figures share a rank; top % = rank ÷ schools × 100, rounded up.
Top % in England by year: the first and best years are labelled; the dashed line is the middle (top 50%).
Against South East: South East state secondaries, same year, cohort 30+, suppressed figures left out. Steps: the score out of 10 against South East (10 = top 10%).
Arrows: change in South East percentile points since 2018/19.
Pupils counted: Attainment 8 216 pupils (2024/25) · Grade 5+ English and maths 216 pupils (2024/25) · EBacc point score 216 pupils (2024/25) · Progress 8 204 pupils (2023/24) · A level points per entry 217 pupils (2024/25).
Progress 8: Not published for 2024/25: Progress 8 returns with 2026/27 results.
Getting in
Got in = first-choice families offered a place on national offer day ÷ families who put the school first. Putting a school first gives no priority: siblings and distance decide.
First-choice applications not offered a place on national offer day: 100 × (1 − first-preference offers ÷ first preferences). Applications count preferences, not children; places can still be offered from waiting lists after offer day.
Source: DfE, Primary and secondary school applications and offers.
Last distance offered: the straight line from the school to the furthest child offered a place under the distance rule. Not a catchment: it changes every year.
Inspections
Outstanding
Dates are the day each inspection started: Mar 2023 Outstanding · Nov 2008 Outstanding · Nov 2005 Outstanding. Each dot opens its Ofsted report.
Inspection judgements graded Outstanding or Good, and Requires improvement or Inadequate, out of the judgements graded (the overall grade and aggregated judgements are not counted). Counted from Ofsted's grades, never scored from the report text.
Source: Ofsted, state-funded schools inspections and outcomes.
Pupils
Full = pupils on roll ÷ the school's capacity (1,280 places), from Get Information about Schools.
Pupil profile and absence: DfE school census and pupil absence (Compare school and college performance). Free school meals = eligible at any time in the past 6 years; persistently absent = missed 10% or more of sessions. Withheld = suppressed by DfE.
Workforce
School workforce census, 2025/26. Staff in FTE (full-time equivalent), rounded to 1 decimal on the card. As published: teachers 70.87, leadership 8, teaching assistants 10.83, support staff incl. TAs 31.94, whole workforce 102.81 (117 people), 76 teachers by headcount.
Other support = support staff incl. TAs minus teaching assistants.
Per adult counts teachers, TAs and other classroom support; excludes admin staff.
- DfE: FTE pupils (January census) ÷ FTE teachers (November census)
- DfE: FTE pupils ÷ FTE teachers, teaching assistants, other school support staff and technicians; administrative, auxiliary and business staff are not counted
- Teachers in leadership posts: head, deputy and assistant heads
Financials
Academy accounts (AAR) · September 2024 to August 2025.
Published total ÷ FTE pupils in the same return, to the nearest pound; income and spend per pupil are left out when the return covers less than 12 months.
CFR (maintained schools, April–March) and AAR (academies, September–August) are different accounts and years: do not compare a maintained school with an academy.
Destinations
Students who finished the stage in the cohort year, followed through the next year: sustained = at least six months in education, an apprenticeship or employment
Source: DfE destination measures.
Why some figures are missing
Parent View: Ofsted Parent View: not published for this school (Ofsted lists only schools with 10 or more responses; fewer in the current survey and in the earlier-survey years loaded).
All sources and licences (8)
- Department for Education, Primary and secondary school applications and offers
- Department for Education, Compare school and college performance
- Ofsted, state-funded schools inspections and outcomes
- Department for Education, 16-19 destination measures, academic year
- Department for Education, Academies Accounts Return
- Department for Education, Key stage 4 destination measures, academic year
- Department for Education, School workforce in England, reporting year 2025
- Department for Education, Get Information about Schools
Contains public sector information licensed under the Open Government Licence v3.0.
How we compare schools · release rel-202610230107-census-layers-england
Sir Joseph Williamson's Mathematical School
Homes near this school
Finding homes near…
Results · 2024/25
Ranked 111 of 3,280 secondaries in England · top 4%
A-level results
#75 of 394 South East sixth forms, state and independent, 2024/25
Independent and selective (grammar) schools choose their pupils, so high results partly reflect who gets in, not only teaching. Some independent schools don't publish results.
Against South EastArrows: South East rank change since 2018/19
Show exam results by year
No exams 2019/20–21
Getting in · 2026
By preference
| Choice | Applied | Offered |
|---|---|---|
| 1st | 336 | 196 |
| 2nd | 152 | 5 |
| 3rd | 115 | 0 |
Last distance offered: London only
Visit & links
Open days aren't open data: the school site lists them.
Official
Guides
Links open in a new tab. Close Knit counts the click, never what you do there.
Inspections · 2005–2023
- 2005Outstandingas predecessor
- 2008Outstandingas predecessor
- 2023Outstanding
5 strong areas
- Personal development
- Quality of education
- Behaviour and attitudes
- Sixth form provision
- Effectiveness of leadership and management
0 weak areas
5 areas graded · safeguarding effective
Pupils · 2024/25
Girls 6.9%Boys 93.1%
all pupils, incl. sixth form
121.5% full · 1,280 places · 447 in sixth form
Parent View
Not published for this school
Workforce · 2025/26
- Classroom teachers 62.9
- Leadership 8
- Teaching assistants 10.8
- Other support 21.1
Teachers 70.9 FTE · Whole workforce 102.8 · 117 people
Financials · 2024/25
- £0revenue reserve
- +£2,416,000in-year balance
Grants £7,033 · self-generated £357 · premises £7 per pupil
Multi-academy trust: LEIGH ACADEMIES TRUST (33 academies) · trust reserve £12,596,000 · Reserves in a multi-academy trust belong to the trust; this academy's figures include the share of central costs the trust gives it
Destinations · 2023/24 leavers
After Year 11
204 students, followed through 2024/25 · Provisional
After sixth form (16–18)
217 students, followed through 2024/25 · Provisional