CatholicCombinedYears 4-12· Major Cities

Trinity College

East Perth, WA 6004 · Catholic Education Western Australia

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ICSEA

1113

87th percentile nationally

Elite (top decile)

Total enrolments

1,347

Combined

Student–teacher ratio

11:1

119.1 FTE teachers

Gender mix

0% / 100%

girls / boys

Language background

18%

non-English at home

Socio-educational advantage

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

Bottom: 5%

Lower-mid: 17%

Upper-mid: 32%

Top: 46%

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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.