GovernmentSecondaryYears 11-12· Major Cities

St Marys Senior High School

St Marys, NSW 2760 · NSW Department of Education

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ICSEA

1052

69th percentile nationally

Top tier

Total enrolments

926

Secondary

Student–teacher ratio

14:1

67.6 FTE teachers

Gender mix

61% / 39%

girls / boys

Language background

73%

non-English at home

Socio-educational advantage

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

Bottom: 17%

Lower-mid: 27%

Upper-mid: 34%

Top: 22%

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Other schools in St Marys

Our Lady of The Rosary Primary School

Catholic · Primary

1032

Ropes Crossing Public School

Government · Primary

1019

St Marys Public School

Government · Primary

954

Oxley Park Public School

Government · Primary

953

St Marys South Public School

Government · Primary

945

Colyton High School

Government · Secondary

922

Bennett Road Public School

Government · Primary

912

St Marys North Public School

Government · Primary

873

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.