St Mary's School
Updated Oct 2026 · ACARA 2025Dandenong, Victoria 3175 · Greater Dandenong LGA
#906 of 1,290 primary schools in VIC
#2798 of 4,908 nationally
About St Mary's School
St Mary's School is a catholic primary school located in Dandenong, Victoria (3175), within the Greater Dandenong local government area. It caters for students from Prep to 6 and in 2025 enrolled 154 students (78 girls and 76 boys). The school is affiliated with Victorian Catholic Education Authority.
St Mary's School has an ICSEA value of 993, indicating a socio-educational profile close to the national average of 1000. That places it in the 43rd percentile of Australian schools. 11% of students come from the top socio-educational quarter and 43% from the bottom quarter.
The school employs 19 teachers (14.8 full-time equivalent) and 16 non-teaching staff, giving a student-to-teacher ratio of about 10.4 to 1. Enrolments have fallen by 23% over the past five years.
On the Success Index, St Mary's School scores 48.6 out of 100, placing it in the lower 50% of primary schools nationally and 906th of 1,290 primary schools in VIC (9th of 25 in the Greater Dandenong area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 993
- Students in the top advantage quarter (15%)11% of students
- Teacher resourcing (students per teacher) (15%)10.4 students per teacher
- Enrolment growth vs local area (5 years) (10%)-23% enrolments since 2020 (area median -3%)
- ICSEA trend (5 years) (10%)+23 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 School's 154 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Mary's School have changed over the past decade.
Free academic assessment
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Schools near St Mary's School
Closest schools by straight-line distance, with their Success Index.
Dandenong Primary School
Dandenong · Government primary · Prep-6
479 students · ICSEA 935 · 319 m away
St John's Regional College
Dandenong · Catholic high school · 7-12
616 students · ICSEA 1001 · 478 m away
Dandenong South Primary School
Dandenong · Government primary · Prep-6
607 students · ICSEA 907 · 1.2 km away
Holy Family School
Doveton · Catholic primary · Prep-6
109 students · ICSEA 975 · 1.6 km away
Dandenong High School
Dandenong · Government high school · 7-12
1,378 students · ICSEA 891 · 1.6 km away
Dandenong North Primary School
Dandenong · Government primary · Prep-6
798 students · ICSEA 955 · 1.6 km away
Doveton College
Doveton · Government combined · Prep-9
892 students · ICSEA 894 · 1.9 km away
Dandenong West Primary School
Dandenong · Government primary · Prep-6
311 students · ICSEA 931 · 2.1 km away
Endeavour Hills Specialist School
Endeavour Hills · Government special · U
293 students · ICSEA 985 · 2.4 km away
St Gerard's School
Dandenong North · Catholic primary · Prep-6
125 students · ICSEA 1049 · 2.5 km away
Similar schools
Catholic primary schools in VIC with a comparable ICSEA.
St Mary's School
Mansfield · Catholic primary · Prep-6
134 students · ICSEA 993
St Brendan's School
Flemington · Catholic primary · Prep-6
82 students · ICSEA 993
St Mary's School
Sea Lake · Catholic primary · Prep-6
39 students · ICSEA 993
St Joseph's School
Hopetoun · Catholic primary · Prep-6
37 students · ICSEA 994
St Patrick's School
Tongala · Catholic primary · Prep-6
95 students · ICSEA 994
Sacred Heart School
Casterton · Catholic primary · Prep-6
41 students · ICSEA 995
Frequently asked questions
Is St Mary's School a public or private school?
St Mary's School 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 School offer?
St Mary's School offers Prep to 6. It is classified by ACARA as a primary school.
How many students attend St Mary's School?
In 2025, St Mary's School had 154 enrolled students (78 girls, 76 boys), a change of -23% over five years.
What is the ICSEA of St Mary's School?
St Mary's School has an ICSEA (Index of Community Socio-Educational Advantage) of 993. 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 School rank in VIC?
St Mary's School ranks 906th of 1,290 primary schools in Victoria on the Success Index (48.6/100), and 2798th of 4,908 nationally.
What is the student-to-teacher ratio at St Mary's School?
St Mary's School has about 10.4 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How many students start Prep at St Mary's School each year?
In 2025, St Mary's School had 19 students in Prep and 22 in Year 6.
Is St Mary's School co-ed?
Yes. St Mary's School is a co-educational school enrolling both girls and boys.
What other schools are near St Mary's School?
There are 10 other schools within 15 km of St Mary's School 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 School?
The closest Success Tutoring centre is Success Tutoring Springvale, about 7.4 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.