CatholicSecondaryYears 7-12· Major Cities

Trinity Catholic College

Auburn, NSW 2144 · Catholic Schools NSW

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ICSEA

1016

54th percentile nationally

Above average

Total enrolments

1,313

Secondary

Student–teacher ratio

13:1

103.1 FTE teachers

Gender mix

49% / 51%

girls / boys

Language background

94%

non-English at home

Socio-educational advantage

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

Bottom: 31%
Lower-mid: 30%
Upper-mid: 26%
Top: 13%

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.