Australia›VIC›Williamstown›St Mary's School

St Mary's School

CatholicPrimaryPrep-6
Williamstown, VIC 3016 · Major Cities
03 5775 2670
Students263enrolled
Ratio1:14.5student:teacher
SEIFA10/10advantage decile
Enrolment
263
total students
Girls131
Boys132
Year RangePrep-6
TypePrimary
St Mary's
OverviewEnrolmentStaffCommunityAttendanceAttainmentTrendsSimilarNearby

Enrolment Summary

St Mary's School has 263 students enrolled across 7 year levels as of 2025. Total enrolment increased by 1 students (0.4%) from 2024.

Total Students263
Primary263
YoY Change (2024→2025)+1

Enrolment by Year Level — 2025

Pre-Year 1
41+6
Year 1
35-17
Year 2
54+19
Year 3
37+5
Year 4
31-3
Year 5
32-4
Year 6
33-5
20252024
Source: ACARA Enrolments by Grade (2025)

Total Enrolment Over Time

St Mary's School enrolment from 2016 to 2025.

23627030433837235416344173321834219338203122129722287232622426325
Source: ACARA School Profile (2016–2025)

Gender Balance

Currently 131 girls (50%) and 132 boys (50%).

50%
50%
22326029733437216716315215415514113613712413118718118018818317116115013813216171819202122232425
GirlsBoys
Source: ACARA School Profile (2016–2025)

Gender Breakdown by Year

YearGirlsBoysTotalGirls %
202513113226350%
202412413826247%
202313715028748%
202213616129746%
202114117131245%
202015518333846%
201915418834245%
201815218033246%
201716318134447%
201616718735447%

Year-on-Year Comparison

Year Level20242025Change
Pre-Y13541+6
Year 15235-17
Year 23554+19
Year 33237+5
Year 43431-3
Year 53632-4
Year 63833-5
Total262263+1
Source: ACARA Enrolments by Grade (2024–2025)