IndependentCombinedYears K-11· Major Cities

Sydney Montessori School

Gymea, NSW 2227 · Independent Schools NSW

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ICSEA

1118

89th percentile nationally

Elite (top decile)

Total enrolments

147

Combined

Student–teacher ratio

11:1

13.4 FTE teachers

Gender mix

56% / 44%

girls / boys

Language background

33%

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: 12%

Upper-mid: 32%

Top: 50%

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Other schools in Gymea

St Catherine Labouré Catholic Primary School

Catholic · Primary

1109

Gymea Bay Public School

Government · Primary

1091

Gymea North Public School

Government · Primary

1075

Gymea Technology High School

Government · Secondary

1048

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.