Colyton High School

Government secondary school in St Marys, NSW

School score 23Area advantage (CAI) 15 · bottom 14% of suburbsArea Y12 48.1%Attendance 73.6% (NSW, Semester 1 2024)

What this page can and cannot tell you 1 of 2 school-level measures · zone mapped

Attendance: 73.6% (NSW, Semester 1 2024). The NSW department publishes a rate for this school, and its change since 2019.
No destinations figure. We hold no destinations figure for any NSW school in this snapshot, so we show none for any of them. Why ▸
Enrolment zone: mapped. Its High_coed catchment is the shaded area on this page (NSW, CC BY 4.0).

How our numbers work ▸

Sector	Government
Type	Secondary
Year levels	7–12
Enrolment	765 students (NSW government schools, August census, FTE)
Community Advantage Index (area percentile)	15 — bottom 14% of Australian suburbs (Lower advantage)
Area Year-12 attainment	48.1%
School attendance	73.6% (NSW, Semester 1 2024)
Value-add (attendance vs area)	-10.8 pts vs what its area predicts among NSW schools (NSW, Semester 1 2024) — below its area. In plain words: fewer students turn up here than at NSW schools sitting in similarly advantaged areas.
Attendance trend (vs 2019)	-10.5 pts (NSW, Semester 1, 2019 to 2024)
Diversity	11% Indigenous · 41% language background
Enrolment catchment	High_coed zone shown on the map above — check if an address is in this zone ▸ (NSW, CC BY 4.0)
Suburb	St Marys, NSW
Website	colyton-h.schools.nsw.gov.au/

Attendance, 2019 to 2024 (NSW series, Semester 1). Colyton High School recorded 84.1% in 2019 and 73.6% (NSW, Semester 1 2024) — 10.5 percentage points lower. The vertical scale is set to this school's own attendance range (65–90%), so the steepness of this line cannot be compared with another school's. NSW's series counts students in Years 1–10 only (the national reporting standard), so compare it only with other NSW schools. Attendance is the department's own figure; it is not a measure of teaching quality. How the attendance trend works ▸

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 (CAI) — our Community Advantage Index — is our own estimate of the surrounding community's socio-educational advantage, derived from ABS SEIFA. It is a percentile, not a score out of 100: a CAI of 15 means this suburb sits in the bottom 14% of Australian suburbs we hold a figure for (14,490 of them). 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. How the Community Advantage Index is calculated ▸

4 kids-activity providers in St Marys

Nearby schools

The closest schools to Colyton High School, ordered by distance — not by any score.

Bennett Road Public School Government primary · 796 m
Oxley Park Public School Government primary · 1.0 km
St Marys South Public School Government primary · 2.0 km
St Clair High School Government secondary · 2.1 km
Clairgate Public School Government primary · 2.1 km
St Clair Public School Government primary · 2.3 km

All schools in St Marys ▸

Buying or renting in this zone?

A school's catchment is one of the things families weigh when choosing a home — but a home in St Marys is not automatically inside this school's zone. This school's High_coed catchment is the shaded area on the map above.

Check an exact address is in this zone ▸

Browse listings in St Marys: homes for sale · rentals (realestate.com.au — a suburb search, so confirm each address with Zone check above)

What to do next

Check your address is in this zone ▸ A home in St Marys is not automatically inside it.
Compare Colyton High School with nearby schools ▸
Ask the school itself about enrolment, tours and out-of-zone places: 9623 2789 · colyton-h.schools.nsw.gov.au/