IndependentCombinedYears K-12· Major Cities

Canberra Grammar School

Red Hill, ACT 2603 · Association of Independent Schools of the ACT

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ICSEA

1187

99th percentile nationally

Elite (top decile)

Total enrolments

2,116

Combined

Student–teacher ratio

12:1

176.1 FTE teachers

Gender mix

43% / 57%

girls / boys

Language background

19%

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: 5%
Upper-mid: 18%
Top: 77%

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.