GovernmentSecondaryYears 7-12· Major Cities

Mosman High School

Mosman, NSW 2088 · NSW Department of Education

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ICSEA

1126

91th percentile nationally

Elite (top decile)

Total enrolments

1,087

Secondary

Student–teacher ratio

14:1

75.3 FTE teachers

Gender mix

47% / 53%

girls / boys

Language background

43%

non-English at home

Socio-educational advantage

Share of students in each national SEA quarter (bottom = most disadvantaged, top = most advantaged).

Bottom: 3%

Lower-mid: 14%

Upper-mid: 33%

Top: 50%

Explore Mosman, NSWLiveability 74

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Other schools in Mosman

Mosman Church of England Preparatory School

Independent · Primary

1206

Sacred Heart Catholic Primary School

Catholic · Primary

1189

Blessed Sacrament Catholic Primary School

Catholic · Primary

1188

Queenwood

Independent · Combined

1172

Middle Harbour Public School

Government · Primary

1162

Mosman Public School

Government · Primary

1157

Beauty Point Public School

Government · Primary

1154

Source: ACARA My School 2025. ICSEA reflects the socio-educational background of a school's students — not academic results or teaching quality. National average = 1000. See data sources.