Also known as SMS Dandenong
NAPLAN 24 points below national year-level averages; the result is a B- overall.
St Mary's School is also known as SMS Dandenong.
St Mary's School has an overall SchoolRank score of 41.9/100, grade B− (slightly below average). This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades B− (slightly below average) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 993 (43rd percentile; the national average is 1,000).
In 2025 NAPLAN testing at St Mary's School, Year 3 students averaged 371 across the tested NAPLAN domains, below the national average of 407 for that year level, and Year 5 students averaged 477, below the national average of 490 for that year level. National averages are specific to each year level, because NAPLAN scores are scaled so older year levels score higher. A school-wide average can't be compared with a single national figure.
St Mary's School is a very small Catholic primary school with approximately 154 students. It offers education for years Prep-6. As a Catholic school, enrolment typically involves an application process. Contact the school directly for enrolment criteria, waiting lists, and open day information.
St Mary's School has a student-to-teacher ratio of 10.4:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 41% of the workforce. The student attendance rate is 85%, which is below average.
St Mary's School is located in Dandenong, VIC, in a major city. Its ICSEA is 993 (43rd percentile; the national average is 1,000). ICSEA measures the advantage of a school's community, from its parents' education and occupation, not the school's quality. A school with a lower ICSEA and strong academic results may be teaching particularly effectively.