Sir Joseph Williamson's Mathematical School

Secondary
Academy
Ages 11 to 18

Ofsted: Outstanding

Maidstone Road, Rochester, ME1 3ELOpen in maps (opens in a new tab)

Sir Joseph Williamson's Mathematical School is a secondary school in Rochester for ages 11 to 18. It is one of the 110 schools in Medway. It ranks 1st of 6 secondary schools in Rochester. Its latest Ofsted rating is Outstanding, from an inspection in March 2023.

Ofsted inspection

Inspected 21 March 2023, report published 18 May 2023

Overall effectiveness: Outstanding
Quality of education: Outstanding
Behaviour and attitudes: Outstanding
Personal development: Outstanding
Leadership and management: Outstanding
Sixth form provision: Outstanding
Safeguarding: Met

Read the full Ofsted report (opens in a new tab)

Exam results

GCSE results (key stage 4), 2024/25

216 pupils in the year group

Attainment 8 score69.5

69.5, 23.4 above the England average of 46.1.

Grade 5 or above in English and maths93.5%

93.5%, 48.1 percentage points above the England average of 45.4%.

Grade 4 or above in English and maths97.2%

97.2%, 32.4 percentage points above the England average of 64.8%.

Pupils entering the EBacc98.6%

98.6%, 58.1 percentage points above the England average of 40.5%.

EBacc average point score6.82

6.82, 2.73 above the England average of 4.09.

A level results (key stage 5), 2024/25

217 students

Average point score per A level entry42.32

42.32, 7.32 above the England average of 35.00.

Average A level grade B+, England average B-

Pupil numbers and mix

1,555 pupils on roll, with places for 1,280

Eligible for free school meals10.9%

10.9%, 15.6 percentage points below the England average of 26.5%.

English as an additional language13.2%

13.2%, 8.4 percentage points below the England average of 21.6%.

Special educational needs support6.8%

6.8%, 8 percentage points below the England average of 14.8%.

Education, health and care plan0.6%

0.6%, 5.4 percentage points below the England average of 6%.

Schools near Sir Joseph Williamson's Mathematical School

School	Distance	Ofsted	Results
The Rochester Grammar School	0.1 miles	Ofsted: Good	Attainment 8: 68.4
The Thomas Aveling School	0.5 miles	Ofsted: Good	Attainment 8: 41.3
Holcombe Grammar School	0.9 miles	Ofsted: Good	Attainment 8: 62.4
St John Fisher Catholic Comprehensive School	1 mile	Ofsted judgements: Requires improvement to good	Attainment 8: 40.0
Fort Pitt Grammar School	1 mile	Ofsted: Outstanding	Attainment 8: 65.9

School details

School type: Academy converter
Sector: Academy
Trust: LEIGH ACADEMIES TRUST
Age range: 11 to 18
Gender: Boys
Admissions: Selective
Sixth form: Yes
Headteacher: Mr Eliot Hodges
Phone: 01634844008
Website: sjwms.org.uk (opens in a new tab)
Address: Maidstone Road, Rochester, ME1 3EL
Local authority: Medway
URN: 136662

School details from Get Information about Schools, 17 September 2026. Ofsted outcomes published to 31 August 2026. Exam results for 2024/25 from the Department for Education. Pupil mix from the school census, 2025/26.