Sir Joseph Williamson's Mathematical School
Rochester, ME1 3EL · Medway local authority
Rochester’s School Grade B+ better than 68% of towns in England
What stands out about Sir Joseph Williamson's Mathematical School
- Its own letter, A+: GCSE results better than 97% of England’s secondary schools
- 96% get grade 5 or above in English and maths, 49 points above England’s schools
- A grammar school: it selects pupils by an entrance test (the 11-plus), which lifts its results
- Over capacity: 1,555 pupils for 1,280 places
- 12% of pupils are eligible for free school meals (fewer than England’s 30%)
- Ofsted: Outstanding, March 2023 (shown, not graded)
- 58% of families who put it first got a place for September 2026 (196 of 336)
- Progress 8 of +0.90 in 2023/24, the last year DfE published it: pupils did better at GCSE than pupils nationally with the same results at 11
- Homes in its postcode sector (ME1 3) sold for a median £318,000; Rochester’s is £310,000
Results
DfE · GCSEs 2025/26, provisional · 214 pupilsEach bar is a group of England’s 3,224 graded secondary schools. The schools Sir Joseph Williamson's Mathematical beats are shaded green.
Attainment 8 69.9
Average grade across 8 GCSEs ×10 · higher than 97% of schools · Medway avg 47.2
Grade 5+ in English and maths 96%
A strong pass · higher than 97% of schools · Medway avg 45%
Attainment 8, three years
The mark is England’s average that year
Progress 8, 2023/24
+0.90: above average. How pupils did at GCSE against pupils nationally with the same results at 11. Not published since 2023/24 (no Key Stage 2 tests in 2020 and 2021).
Disadvantaged pupils, 2025/26
Attainment 8 for the 16 pupils DfE counts as disadvantaged (free school meals in the last 6 years, or looked after) and the rest, beside England’s schools
England’s figures are of its graded mainstream state schools, each school counted once; grammar schools are included, which is why the right-hand tail is long. Small cohorts are suppressed.
How hard is it to get a place at Sir Joseph Williamson's Mathematical School?
58% of the families who put it first got a place for September 2026.
Years when some first choices missed out: 2019 (106), 2020 (133), 2021 (156), 2022 (67), 2023 (134), 2024 (130), 2025 (171), 2026 (140). The council runs the coordinated admissions; each school’s rules (siblings, distance, faith) decide who gets in. DfE doesn’t publish the furthest distance offered, so check the council’s admissions booklet for that. Leigh Academies Trust sets the admissions rules. Apply through Medway council’s coordinated admissions.
Outline = places offered · green = families who put it first · striped = more first choices than places
58% got their first choice
Rochester and Medway, side by side
2025/26All 18 graded secondaries in Medway. Schools with more pupils on free school meals usually score lower, so a school above the crowd for its free school meals is doing better than its intake predicts. Rochester’s schools are coloured by their letter.
Show as a table
| School | Letter | Free school meals | Attainment 8 |
|---|---|---|---|
| Sir Joseph Williamson's Mathematical School | A+ | 12% | 69.9 |
| The Rochester Grammar School | A+ | 12% | 67.5 |
| Rainham Mark Grammar School | A+ | 11% | 63.1 |
| Fort Pitt Grammar School | A | 14% | 63 |
| Chatham Grammar | A | 17% | 60.6 |
| Holcombe Grammar School | A | 13% | 59.8 |
| The Howard School | C+ | 24% | 47.3 |
| Rainham School for Girls | C− | 22% | 44.8 |
| Leigh Academy Rainham | C− | 22% | 44.5 |
| Leigh Academy Strood | C− | 34% | 43.7 |
| Leigh Academy Hundred of Hoo | C | 24% | 42.3 |
| St John Fisher Catholic Comprehensive School | C− | 36% | 40.4 |
| The Victory Academy | D | 45% | 38.9 |
| The Thomas Aveling School | D | 33% | 38.8 |
| Brompton Academy | D− | 39% | 35.7 |
| The Robert Napier School | D− | 52% | 30.2 |
| Greenacre School | D− | 30% | 29.4 |
| Walderslade School | D− | 40% | 29.2 |
Who goes here
DfE school census, January 20251,528 pupils. SEN support is extra help in school for a special educational need; an EHC plan is the council’s legal plan for pupils who need more.
Girls and boys
Sir Joseph Williamson's Mathematical School’s letter
Its own results against England’s schools, not the town’s School Grade.
How school letters are worked out
Each school’s measure is compared with every graded school in England of the same phase: for primaries, the share of pupils meeting the expected standard in reading, writing and maths (DfE’s three-year average); for secondaries, Attainment 8 and the share with grade 5 or above in English and maths, each turned into a z-score against England’s schools and averaged. The letter comes from the share of those schools it beats, in the same bands as every grade on the site. The same method gives U.S. schools their letters, against their own state.
Graded: England’s open mainstream state schools with published results (grammar schools included, which select by test). Not graded: special schools, alternative provision, nurseries, 16–19 colleges, UTCs and studio schools, Welsh schools. Ofsted plays no part.
Ofsted inspections
Shown, not graded: Ofsted is never part of a letter or the School Grade.
Graded inspection: Outstanding, March 2023.
Living near Sir Joseph Williamson's Mathematical School
For families thinking of moving: what homes cost around the school, and the other schools close by.
Home prices in ME1 3, the school’s postcode sector
Rochester property prices →Median sale price each year, 2010 to 2025
By type, the 36 months to August 2026
Homes in ME1 3 sell for about the same as Rochester’s typical price. HM Land Registry Price Paid, standard sales. Catchments aren’t published, so the postcode sector stands in for “around the school”.
Schools within 1.6 miles
25 state schoolsLocation
Directions ↗Rochester, ME1 3EL
Sir Joseph Williamson's Mathematical School: common questions
Is Sir Joseph Williamson's Mathematical School a good school?
By its published results, well above average: its GCSE results are better than 97% of England’s secondary schools (its letter is A+), with an Attainment 8 of 69.9 and 96% getting grade 5 or above in English and maths, against 47.3 and 47% for England’s schools. Ofsted: Outstanding, March 2023.
How hard is it to get into Sir Joseph Williamson's Mathematical School?
For September 2026, 336 families put Sir Joseph Williamson's Mathematical School first and 196 of them were offered a place; 201 places were offered in all.
What is Sir Joseph Williamson's Mathematical School’s Ofsted rating?
Its latest inspection outcome is Outstanding (March 2023).
How much do houses cost near Sir Joseph Williamson's Mathematical School?
Homes in its postcode sector, ME1 3, sold for a median £318,000 over the 36 months to August 2026 (513 sales).
Sources: DfE Get Information about Schools (16 October 2026), Key Stage 2 performance tables (2023–2025, three-year average) and Key Stage 4 (2025/26, provisional); Ofsted state-funded school inspections as at 30 September 2026. All under the Open Government Licence v3.0.
Also: DfE Key Stage 4 performance, schools data (2023/24 and 2024/25 final, 2025/26 provisional) and Key Stage 2 performance tables 2024/25 by subject; DfE school census, January 2025; DfE school-level applications and offers, September 2019 to 2026 entry; HM Land Registry Price Paid by postcode sector, 2010 to August 2026.
A school’s letter is our own summary of its published results against England’s schools of the same phase; Rochester’s School Grade is a separate grade, built from the results of the schools in and around the town against other towns. Map: © OpenStreetMap contributors.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.