Trinity Grammar School — Trends (2008–2025) — Summer Hill, NSW

18-Year Profile (2008–2025)

Historical profile data for Trinity Grammar School from 2008 to 2025. ICSEA has risen by 55 points over this period. Total enrolment has grown by 314 students.

ICSEA 20081113

ICSEA 20251168+55

Enrolment 20081982

Enrolment 20252296+314

Key Metrics Over Time

Total Enrolments

2,296

↑

2008–2025+314 (15.8%)

ICSEA Score

1168

↑

2008–2025+55 (4.9%)

ICSEA Percentile

98th

↑

2008–2025+8th (8.9%)

Student:Teacher Ratio

9.0:1

↓

2008–2025-0.4:1 (-4.3%)

Indigenous Students

0.0%

→

2008–20250.0% (NaN%)

LBOTE Students

61.0%

↑

2009–2025+45.0% (281.3%)

Source: ACARA School Profile 2008–2025

Community Composition Shift

How the school's socio-educational advantage distribution has shifted over time. Each bar shows the % of students in each SEA quarter.

2008

Bottom2%

Lower9%

Upper25%

Top64%

2017

Bottom5%

Lower20%

Upper32%

Top43%

2025

Bottom1%

Lower7%

Upper24%

Top67%

Top Quarter trend (2008–2025)

↑

Source: ACARA School Profile 2008–2025

Year-by-Year Data

YearEnrolmentsICSEAST RatioIndigenousLBOTE

20252,29611689:10%61%

20242,26111659.1:10%59%

20232,22511649.3:10%59%

20222,20211689.2:10%56%

20212,19611619.6:10%54%

20202,15911639.8:10%53%

20192,12411599.8:10%51%

20182,09911709.5:10%51%

20172,08411089.7:10%53%

20162,01211739.9:10%54%

20152,030117210.5:10%53%

20141,988117710.6:10%52%

20131,988117710.1:10%50%

20121,934117610.1:10%50%

20111,913119110.1:10%52%

20101,93311939.9:10%33%

20091,964111310.3:10%16%

20081,98211139.4:10%—

Source: ACARA School Profile 2008–2025