CatholicCombinedYears R-12· Major Cities

St Mary's College

Adelaide, SA 5000 · Catholic Education South Australia

Visit school website

ICSEA

1073

76th percentile nationally

Top tier

Total enrolments

659

Combined

Student–teacher ratio

11:1

60.9 FTE teachers

Gender mix

100% / 0%

girls / boys

Language background

15%

non-English at home

Socio-educational advantage

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

Bottom: 10%

Lower-mid: 23%

Upper-mid: 42%

Top: 26%

Explore Adelaide, SALiveability 69

See median price, rent, safety, transport, demographics and every other school in the suburb.

→

Other schools in Adelaide

Pulteney Grammar School

Independent · Combined

1170

Sturt Street Community School

Government · Primary

1114

Gilles Street Primary School

Government · Primary

1107

Adelaide Botanic High School

Government · Secondary

1103

Adelaide High School

Government · Secondary

1094

St Aloysius College

Catholic · Combined

1081

Muirden Senior College

Independent · Secondary

1079

Christian Brothers College

Catholic · Combined

1074

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.