CatholicCombinedYears 4-12· Major Cities
Trinity College
East Perth, WA 6004 · Catholic Education Western Australia
Visit school websiteICSEA
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%
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.