IndependentCombinedYears R-9· Major Cities

Southern Montessori School

O'Sullivan Beach, SA 5166 · Association of Independent Schools of SA

Visit school website

ICSEA

1095

83th percentile nationally

Top tier

Total enrolments

230

Combined

Student–teacher ratio

13:1

18.4 FTE teachers

Gender mix

53% / 47%

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: 6%

Lower-mid: 22%

Upper-mid: 37%

Top: 35%

Explore O'Sullivan Beach, SALiveability 34

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

→

Other schools in O'Sullivan Beach

O'Sullivan Beach Primary School

Government · Primary

926

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.