Enrolment
Girls vs boys enrolment
263
reported total enrolments
131 girls
132 boys
49.8% girls50.2% boys
St Mary's School reports 263 total enrolments, including 131 girls and 132 boys. The reported enrolment mix is 49.8% girls and 50.2% boys.
Quick school snapshot
What stands out in the profile
School model
St Mary's School is listed as Catholic and Primary, with a reported year range of Prep-6.
Enrolment size
The school reports 263 total enrolments, including 131 girls and 132 boys where available.
ICSEA context
The ICSEA value is 1,107, with percentile 86 in the current dataset.
Gender profile
The gender type is Co-educational, with a reported mix of 49.8% girls and 50.2% boys.
Staff ratio
The student-teacher ratio is 14.5:1, based on 18.2 FTE teaching staff where available.
Local area
The campus is in Williamstown, Victoria, within Hobsons Bay.
Profile signals
School profile dashboard
The main student and context indicators are shown visually so the profile reads like a school intelligence page, not a spreadsheet.
St Mary's School profile summary
St Mary's School is listed as a catholic primary school in Williamstown, Victoria. The profile reports 263 total enrolments, an ICSEA value of 1,107, and a student-teacher ratio of 14.5:1 where available. The reported year range is Prep-6, and the campus sits within Hobsons Bay local government area.
Socio-educational
ICSEA percentile
86
percentile where available
ICSEA
1,107
St Mary's School sits at the 86 ICSEA percentile in the reported dataset.
SEA quarters
Socio-educational distribution
Bottom
3%
Lower-middle
16%
Upper-middle
41%
Top
40%
The socio-educational distribution lists 3% in the bottom quarter, 16% in the lower-middle quarter, 41% in the upper-middle quarter, and 40% in the top quarter.
Staff
Staff profile summary
Teaching staff
24
FTE teaching
18.2
Non-teaching
12
Student-teacher
14.5:1
The profile reports 24 teaching staff and 12 non-teaching staff, with a student-teacher ratio of 14.5:1.
Location
Campus location and area context
Location context combines suburb, postcode, administrative areas and a direct maps link where data is available.
- Suburb
- Williamstown
- Postcode
- 3016
- State
- Victoria
- Local government area
- Hobsons Bay
- Statistical Area Level 2
- Williamstown
- Statistical Area Level 3
- Hobsons Bay
- Statistical Area Level 4
- Melbourne - West
- Remoteness area
- Major Cities
Governance
Governance and official links
Official school and governing body links are included when the dataset provides them.
- Governing body
- Victorian Catholic Education Authority
- Governing body URL
- Visit website
- School URL
- Visit school website
- Campus type
- School Single Entity
- Reporting description
- Individual Reporting
Community
Student community profile
Student community indicators are reported as percentages where available.
- Indigenous enrolment
- 0%
- Language background other than English: yes
- 8%
- Language background other than English: no
- 92%
- Language background other than English: not stated
- 0%
Nearby
Nearby and similar schools
Similar schools are selected from the same suburb first, then from the same local government area where needed.
GovernmentCombined
Bayside P-12 College
Williamstown, VIC 3016
Same suburb
- Enrol.
- 958
- ICSEA
- 1,006
- Ratio
- 9.9:1
IndependentPrimary
Newmark Primary
Williamstown, VIC 3016
Same suburb
- Enrol.
- 131
- ICSEA
- 1,134
- Ratio
- 10.3:1
GovernmentSecondary
Williamstown High School
Williamstown, VIC 3016
Same suburb
- Enrol.
- 1.5K
- ICSEA
- 1,112
- Ratio
- 13.4:1
GovernmentPrimary
Williamstown North Primary School
Williamstown, VIC 3016
Same suburb
- Enrol.
- 601
- ICSEA
- 1,135
- Ratio
- 13.7:1
GovernmentPrimary
Williamstown Primary School
Williamstown, VIC 3016
Same suburb
- Enrol.
- 460
- ICSEA
- 1,123
- Ratio
- 15.5:1
GovernmentCombined
Altona College
Altona, VIC 3018
Same local area
- Enrol.
- 796
- ICSEA
- 1,044
- Ratio
- 12.6:1
FAQ
Questions about St Mary's School
How many students attend St Mary's School?
St Mary's School has 263 reported total enrolments. The student profile lists 131 girls and 132 boys where gender enrolment fields are available.
What type of school is St Mary's School?
St Mary's School is listed as a Catholic school with school type Primary. The reported year range is Prep-6.
Where is St Mary's School located?
St Mary's School is located in Williamstown, VIC 3016. The local government area is Hobsons Bay.
What is the ICSEA value of St Mary's School?
The ICSEA value for St Mary's School is 1,107 and the ICSEA percentile is 86. If either value is missing in the source data, it is shown as Not available rather than zero.
Is St Mary's School boys-only, girls-only or co-educational?
St Mary's School is listed as Co-educational. The reported gender mix is 49.8% girls and 50.2% boys where percentage fields are available.
Data note
Built from structured 2025 school profile data
This page uses structured 2025 Australian school profile data. Some values may be unavailable where they are not reported in the source dataset. Profile pages are designed to make enrolment, ICSEA, location and school context easier to compare.