Southern Montessori School is an independent co-ed school offering Montessori education in a progressive, inquiry-led setting.
NAPLAN averaging +28 above national year-level averages; the result is a B overall.
Southern Montessori School is an independent co-ed school offering Montessori education in a progressive, inquiry-led setting. The school welcomes high-ability learners through a dedicated program and supports inclusive education across the community. Families are drawn to the tight-knit, collaborative environment where Montessori principles shape how children learn and develop independence. It suits parents seeking a structured yet child-centred approach to education in a close school community.
Southern Montessori School has an overall SchoolRank score of 64.4/100, rated "Good". This score is calculated from academic results, student growth, wellbeing, extracurricular programs, and value for money. Academically, the school scores 65/100, indicating moderate performance relative to other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1095, well above the national average of 1,000.
In 2025 NAPLAN testing at Southern Montessori School, Year 3 students averaged 423 across the tested NAPLAN domains, above the national average of 407 for that year level, and Year 5 students averaged 517, above the national average of 490 for that year level, and Year 7 students averaged 563, above the national average of 540 for that year level, and Year 9 students averaged 616, well above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Grammar. 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.
Southern Montessori School is a small independent combined school with approximately 230 students. It offers education for years R-9. As a independent school, enrolment typically involves an application process. Contact the school directly for enrolment criteria, waiting lists, and open day information.
Southern Montessori School has approximate annual tuition fees of $4,952. Actual fees may vary by year level, and additional costs for uniforms, camps, and extracurricular activities typically apply. The school's value score is 59/100, which measures academic outcomes relative to the cost of attendance.
Southern Montessori School has a student-to-teacher ratio of 12.5:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 38% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 91%, which is moderate.
The Year 12 completion rate is 99%.
Southern Montessori School is located in O'Sullivan Beach, SA, classified as a major cities school. With an ICSEA of 1095 (83th percentile), the school community's socio-educational advantage is above average, families tend to have higher education and income levels. ICSEA measures the educational advantage of a school's community, not the school's quality, a lower ICSEA school with strong academic scores may indicate particularly effective teaching.