Overview
Trinity Catholic College is a catholic secondary school in Auburn, New South Wales, serving 7-12. The school has 1,313 enrolled students. Its ICSEA value is 1016 (average). The student-to-teacher ratio is 12.7:1. The school is located in a SEIFA IRSD decile 5 area.
Source: ACARA School Profile 2025 (2025)
Key Facts
SectorCatholic
School TypeSecondary
Year Range7-12
Governing BodyCatholic Schools NSW
Postcode2144
RemotenessMajor Cities
ACARA ID43474
Student Background
Total Enrolments1,313
Gender Split644 girls / 669 boys
Indigenous Students1%
Language Background Other Than English94%
English Background6%
Socio-Educational Advantage Distribution
Source: ACARA School Profile (2025)
Enrolment by Year Level
1,313 students across 6 year levels (2025)
Yr 7246
Yr 8225
Yr 9229
Yr 10215
Yr 11204
Yr 12194
Source: ACARA Enrolments by Grade (2025)
Staffing
Teaching Staff112 (103.1 FTE)
Non-Teaching Staff41 (28.8 FTE)
Total Staff153
Student:Teacher Ratio12.7:1
Source: ACARA School Profile (2025)