J J Cahill Memorial High School
Government secondary school in Mascot, NSW
School score 72Area advantage 94Year 12 77.2%Attendance 83.7%
| Sector | Government |
|---|---|
| Type | Secondary |
| Year levels | 7–12 |
| Enrolment | 298 students |
| Community Advantage Index | 94/100 — Higher advantage |
| Area Year-12 attainment | 77.2% |
| School attendance | 83.7% |
| Value-add (attendance vs area) | -6.5 pts vs what its area predicts — below its area |
| Attendance trend (vs 2019) | +0.3 pts ▲ |
| Diversity | 7% Indigenous · 66% language background |
| Suburb | Mascot, NSW |
| Website | jjcahill-h.schools.nsw.gov.au |
School score 72/100 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 Mascot shares it. It is a community indicator, not a school-quality score, and is not ICSEA.