GovernmentSecondaryYears 7-12· Major Cities

Thornlie Senior High School

Thornlie, WA 6108 · Department of Education Western Australia

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ICSEA

969

33th percentile nationally

Around average

Total enrolments

1,125

Secondary

Student–teacher ratio

14:1

81.5 FTE teachers

Gender mix

48% / 52%

girls / boys

Language background

42%

non-English at home

Socio-educational advantage

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

Bottom: 47%
Lower-mid: 30%
Upper-mid: 17%
Top: 6%

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.