St Mary's School — Trends (2008–2025) — Thornbury, VIC

18-Year Profile (2008–2025)

Historical profile data for St Mary's School from 2008 to 2025. ICSEA has risen by 23 points over this period. Total enrolment has declined by 114 students.

ICSEA 20081066

ICSEA 20251089+23

Enrolment 2008227

Enrolment 2025113-114

Key Metrics Over Time

Total Enrolments

113

↓

2008–2025-114 (-50.2%)

ICSEA Score

1089

↑

2008–2025+23 (2.2%)

ICSEA Percentile

81th

↑

2008–2025+2th (2.5%)

Student:Teacher Ratio

9.7:1

↓

2008–2025-5.0:1 (-34.0%)

Indigenous Students

1.0%

↑

2008–2025+1.0% (Infinity%)

LBOTE Students

16.0%

↓

2008–2025-70.0% (-81.4%)

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

Bottom8%

Lower18%

Upper43%

Top32%

2017

Bottom14%

Lower22%

Upper31%

Top34%

2025

Bottom13%

Lower21%

Upper29%

Top36%

Top Quarter trend (2008–2025)

↑

Source: ACARA School Profile 2008–2025

Year-by-Year Data

YearEnrolmentsICSEAST RatioIndigenousLBOTE

202511310899.7:11%16%

2024161109410.9:11%20%

2023184109111.2:10%25%

2022215109311.6:10%26%

2021231108712.2:10%26%

2020248107713.2:10%33%

2019258106913.9:10%42%

2018249107015.4:10%46%

2017240106615.4:10%49%

2016230106713.5:10%52%

2015231106714.3:10%52%

2014225105414.2:10%55%

2013234103914.7:10%56%

2012234106914.4:10%59%

2011233110513.5:10%66%

2010235111914.9:10%71%

2009253106615:10%80%

2008227106614.7:10%86%

Source: ACARA School Profile 2008–2025