IndependentCombinedYears K-12· Major Cities

The Illawarra Grammar School

Wollongong West, NSW 2500 · Independent Schools NSW

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ICSEA

1159

96th percentile nationally

Elite (top decile)

Total enrolments

970

Combined

Student–teacher ratio

10:1

99.8 FTE teachers

Gender mix

48% / 52%

girls / boys

Language background

36%

non-English at home

Socio-educational advantage

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

Bottom: 2%

Lower-mid: 9%

Upper-mid: 25%

Top: 64%

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Edmund Rice College

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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.