CatholicPrimaryYears Prep-6· Major Cities

St Mary's School

Thornbury, VIC 3071 · Victorian Catholic Education Authority

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ICSEA

1089

81th percentile nationally

Top tier

Total enrolments

113

Primary

Student–teacher ratio

10:1

11.6 FTE teachers

Gender mix

54% / 46%

girls / boys

Language background

16%

non-English at home

Socio-educational advantage

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

Bottom: 13%

Lower-mid: 21%

Upper-mid: 29%

Top: 36%

Explore Thornbury, VICLiveability 71

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Other schools in Thornbury

Wales Street Primary School

Government · Primary

1140

Holy Spirit School

Catholic · Primary

1107

Thornbury Primary School

Government · Primary

1093

Virtual School Victoria

Government · Combined

1073

Thornbury High School

Government · Secondary

1067

Penders Grove Primary School

Government · Primary

1021

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.