GovernmentSecondaryYears 7-12· Major Cities

Conservatorium High School

Sydney, NSW 2000 · NSW Department of Education

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ICSEA

1194

99th percentile nationally

Elite (top decile)

Total enrolments

156

Secondary

Student–teacher ratio

8:1

20 FTE teachers

Gender mix

52% / 48%

girls / boys

Language background

82%

non-English at home

Socio-educational advantage

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

Bottom: 0%

Lower-mid: 4%

Upper-mid: 23%

Top: 72%

Explore Sydney, NSWLiveability 58

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St Andrew's Cathedral School

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1189

St Mary's Cathedral College

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1125

Fort Street Public School

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1094

Australian International High School

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1028

Macquarie Grammar School

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1027

St Andrew's Cathedral Gawura School

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817

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.