IndependentSecondaryYears 11-12· Major Cities

Trinity College Senior

Evanston South, SA 5116 · Association of Independent Schools of SA

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ICSEA

1025

58th percentile nationally

Above average

Total enrolments

669

Secondary

Student–teacher ratio

11:1

58.8 FTE teachers

Gender mix

51% / 49%

girls / boys

Language background

21%

non-English at home

Socio-educational advantage

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

Bottom: 24%

Lower-mid: 35%

Upper-mid: 27%

Top: 13%

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Other schools in Evanston South

Trinity College North

Independent · Combined

1040

Trinity College South

Independent · Combined

1039

Evanston Gardens Primary School

Government · Primary

943

Gawler and District College B-12

Government · Combined

932

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.