St Mary's College
Updated Oct 2026 · ACARA 2025Seymour, Victoria 3660 · Mitchell LGA
#155 of 239 combined schools in VIC
#650 of 1,259 nationally
About St Mary's College
St Mary's College is a catholic combined (K–12) school located in Seymour, Victoria (3660), within the Mitchell local government area. It caters for students from Prep to 12 and in 2025 enrolled 600 students (313 girls and 287 boys). The school is affiliated with Victorian Catholic Education Authority.
St Mary's College has an ICSEA value of 1015, indicating a socio-educational profile close to the national average of 1000. That places it in the 53rd percentile of Australian schools. 10% of students come from the top socio-educational quarter and 28% from the bottom quarter.
The school employs 56 teachers (47.5 full-time equivalent) and 38 non-teaching staff, giving a student-to-teacher ratio of about 12.6 to 1. Enrolments have grown by 38% over the past five years.
On the Success Index, St Mary's College scores 50.3 out of 100, placing it in the top 50% of combined schools nationally and 155th of 239 combined schools in VIC (1st of 2 in the Mitchell area).
VCE results (2025)
Published by the Victorian Curriculum and Assessment Authority. Study scores range from 0 to 50 with a state mean of 30; a score of 40 or above is in roughly the top 9% statewide.
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1015
- Students in the top advantage quarter (15%)10% of students
- Teacher resourcing (students per teacher) (15%)12.6 students per teacher
- Enrolment growth vs local area (5 years) (10%)+38% enrolments since 2020
- ICSEA trend (5 years) (10%)+17 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How St Mary's College's 600 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Mary's College have changed over the past decade.
Free academic assessment
Is your child on track at St Mary's College?
Rankings tell you about a school community. A free Success Tutoring assessment tells you about your child: exactly where they are in English and Maths, where the gaps are, and a plan to close them. Small-group, Australian-curriculum tutoring with no lock-in contracts.
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Schools near St Mary's College
Closest schools by straight-line distance, with their Success Index.
Seymour College
Seymour · Government combined · U, Prep-12
730 students · ICSEA 933 · 1.1 km away
Tallarook Primary School
Tallarook · Government primary · Prep-6
30 students · ICSEA 986 · 9.3 km away
Puckapunyal Primary School
Puckapunyal · Government primary · Prep-6
189 students · ICSEA 1003 · 9.7 km away
Similar schools
Catholic combined schools in VIC with a comparable ICSEA.
St Augustine's College
Kyabram · Catholic combined · Prep-12
691 students · ICSEA 1012
St Anne's College
Kialla · Catholic combined · Prep-12
499 students · ICSEA 1022
Marist College Bendigo
Maiden Gully · Catholic combined · Prep-12
1,203 students · ICSEA 1040
Antonine College
Pascoe Vale South · Catholic combined · Prep-12
927 students · ICSEA 982
St Mary's School
Robinvale · Catholic combined · Prep-8
290 students · ICSEA 962
Marymede Catholic College
South Morang · Catholic combined · Prep-12
2,467 students · ICSEA 1069
Frequently asked questions
Is St Mary's College a public or private school?
St Mary's College is a Catholic school, which makes it a non-government (private) school affiliated with Victorian Catholic Education Authority.
What year levels does St Mary's College offer?
St Mary's College offers Prep to 12. It is classified by ACARA as a combined school.
How many students attend St Mary's College?
In 2025, St Mary's College had 600 enrolled students (313 girls, 287 boys), a change of 38% over five years.
What is the ICSEA of St Mary's College?
St Mary's College has an ICSEA (Index of Community Socio-Educational Advantage) of 1015. The national average is 1000, so this indicates a socio-educational profile close to the national average of 1000. ICSEA reflects the school community, not teaching quality.
How does St Mary's College rank in VIC?
St Mary's College ranks 155th of 239 combined schools in Victoria on the Success Index (50.3/100), and 650th of 1,259 nationally.
What is the student-to-teacher ratio at St Mary's College?
St Mary's College has about 12.6 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
What are the VCE results at St Mary's College?
In 2025, St Mary's College recorded a median VCE study score of 27 with 1.9% of study scores at 40 or above, from 55 students enrolled in at least one VCE study. Source: VCAA Senior Secondary Completion and Achievement Information.
How big is the Year 7 cohort at St Mary's College?
In 2025, St Mary's College had 82 students in Year 7 and 36 in Year 12.
Is St Mary's College co-ed?
Yes. St Mary's College is a co-educational school enrolling both girls and boys.
What other schools are near St Mary's College?
There are 3 other schools within 15 km of St Mary's College in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near St Mary's College?
The closest Success Tutoring centre is Success Tutoring Craigieburn, about 66 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.