IndependentCombinedYears K-12· Major Cities

St Luke's Grammar School

Dee Why, NSW 2099 · Independent Schools NSW

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ICSEA

1178

98th percentile nationally

Elite (top decile)

Total enrolments

1,481

Combined

Student–teacher ratio

12:1

122.1 FTE teachers

Gender mix

49% / 51%

girls / boys

Language background

14%

non-English at home

Socio-educational advantage

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

Bottom: 1%

Lower-mid: 6%

Upper-mid: 22%

Top: 71%

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Other schools in Dee Why

Karuna Montessori School

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Northern Beaches Secondary College Manly Campus

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1217

Curl Curl North Public School

Government · Primary

1116

Cromer Public School

Government · Primary

1091

St John the Apostle Catholic Primary School

Catholic · Primary

1091

St Kevin's Catholic Primary School

Catholic · Primary

1085

Narraweena Public School

Government · Primary

1059

Northern Beaches Secondary College Cromer Campus

Government · Secondary

1056

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.