GovernmentSecondaryYears 7-12· Major Cities

Hornsby High School

Asquith, NSW 2077 · NSW Department of Education

Visit school website

ICSEA

1045

66th percentile nationally

Above average

Total enrolments

542

Secondary

Student–teacher ratio

11:1

48.6 FTE teachers

Gender mix

0% / 100%

girls / boys

Language background

26%

non-English at home

Socio-educational advantage

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

Bottom: 16%
Lower-mid: 32%
Upper-mid: 33%
Top: 19%

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.