Enrolment Summary
Trinity College Colac has 744 students enrolled across 6 year levels as of 2025. Total enrolment decreased by 5 students (-0.7%) from 2024.
Total Students744
Secondary744
YoY Change (2024→2025)-5
Enrolment by Year Level — 2025
Year 7154+9
Year 8136+20
Year 9112-23
Year 10130-5
Year 11124+25
Year 1288-31
20252024
Source: ACARA Enrolments by Grade (2025)
Total Enrolment Over Time
Trinity College Colac enrolment from 2016 to 2025.
Source: ACARA School Profile (2016–2025)
Gender Balance
Currently 379 girls (51%) and 365 boys (49%).
51%49%
GirlsBoys
Source: ACARA School Profile (2016–2025)
Gender Breakdown by Year
YearGirlsBoysTotalGirls %
202537936574451%
202438736274952%
202337936774651%
202238837476251%
202136939476348%
202035637473049%
201936138074149%
201836235071251%
201734737772448%
201636337073350%
Year-on-Year Comparison
Year Level20242025Change
Year 7145154+9
Year 8116136+20
Year 9135112-23
Year 10135130-5
Year 1199124+25
Year 1211988-31
Total749744-5
Source: ACARA Enrolments by Grade (2024–2025)