IndependentCombinedYears K-12· Inner Regional

Northholm Grammar School

Arcadia, NSW 2159 · Independent Schools NSW

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ICSEA

1137

93th percentile nationally

Elite (top decile)

Total enrolments

698

Combined

Student–teacher ratio

12:1

59.4 FTE teachers

Gender mix

43% / 57%

girls / boys

Language background

29%

non-English at home

Socio-educational advantage

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

Bottom: 3%

Lower-mid: 14%

Upper-mid: 27%

Top: 56%

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Other schools in Arcadia

Arcadia Public School

Government · Primary

1065

Galston High School

Government · Secondary

1044

Galston Public School

Government · Primary

1042

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.