Key Workforce Metrics
Trinity Grammar School has 454 staff members (401.4 FTE), including 266 teachers and 188 non-teaching staff.
Student:Teacher Ratio
9:1-0.1
Better than national avg
Teaching Staff
266+6.3 FTE
254.7 FTE
Non-Teaching Staff
188
146.7 FTE
Total Staff
454
12% part-time
Staffing Ratio Comparison
How Trinity Grammar School's student-to-teacher ratio compares to state and national averages. A lower ratio generally means more individual attention per student.
9:1
12.7:1
12.3:1
With a ratio of 9:1, this school has a better student-to-teacher ratio than both the NSW average (12.7:1) and the national average (12.3:1).
Workforce Composition
Classroom Teachers
266
254.7 FTE
Non-Teaching Staff
188
146.7 FTE
Total Workforce
454
401.4 FTE
FTE (full-time equivalent)Headcount (incl. part-time)
Source: ACARA School Profile (2025)
Staffing Trends — 2016–2025
Teaching staff levels and student-to-teacher ratio over time.
FTE Teaching StaffStudent:Teacher RatioNational Avg Ratio
Source: ACARA School Profile (2016–2025)
Staffing History
YearFTE TeachersTotal EnrolmentsStudent:TeacherChange
2025254.72,2969:1-0.1
2024248.42,2619.1:1-0.2
2023238.62,2259.3:1+0.1
2022238.22,2029.2:1-0.4
2021228.92,1969.6:1-0.2
2020221.32,1599.8:10
2019217.12,1249.8:1+0.3
2018221.92,0999.5:1-0.2
2017214.32,0849.7:1-0.2
2016203.92,0129.9:1—