Colyton High School
Government secondary school in St Marys, NSW
School score 23Area advantage 15Year 12 48.1%Attendance 73.6%
| Sector | Government |
|---|---|
| Type | Secondary |
| Year levels | 7–12 |
| Enrolment | 765 students |
| Community Advantage Index | 15/100 — Lower advantage |
| Area Year-12 attainment | 48.1% |
| School attendance | 73.6% |
| Value-add (attendance vs area) | -10.8 pts vs what its area predicts — below its area |
| Attendance trend (vs 2019) | -10.5 pts ▼ |
| Diversity | 11% Indigenous · 41% language background |
| Suburb | St Marys, NSW |
| Website | colyton-h.schools.nsw.gov.au/ |
School score 23/100 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 St Marys shares it. It is a community indicator, not a school-quality score, and is not ICSEA.