| Sector | Government |
|---|---|
| Type | Secondary |
| Year levels | 7–12 |
| Enrolment | 860 students |
| School attendance | 84.9% |
| Attendance trend (vs 2019) | -6.8 pts ▼ |
| Diversity | 0% Indigenous · 13% language background |
| Suburb | Avalon, NSW |
| Website | barrenjoey-h.schools.nsw.gov.au |
School score 24/100 blends this school's own published attendance with the advantage and Year-12 attainment of its area. It is our estimate from open data — not an official rating, not ICSEA, and not a measure of teaching quality.
Area advantage (our Community Advantage Index) is our own estimate of the surrounding community's socio-educational advantage, derived from ABS SEIFA — how it's calculated. It describes the suburb, so every school in Avalon shares it. It is a community indicator, not a school-quality score, and is not ICSEA.