Catholic co-ed secondary (Years 7–12) in Gunnedah, outer regional NSW; 411 students.
NAPLAN 11 points below national year-level averages; the result is a B- overall.
St Mary's College is also known as SMC Gunnedah.
St Mary's College has an overall SchoolRank score of 49.1/100, rated "Average". This score is calculated from academic results, student growth, wellbeing, extracurricular programs, and value for money. Academically, the school scores 49/100, indicating developing performance relative to other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 976, slightly below the national average of 1,000.
In 2025 NAPLAN testing at St Mary's College, Year 7 students averaged 526 across the tested NAPLAN domains, below the national average of 540 for that year level, and Year 9 students averaged 561, in line with the national average of 569 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 College is a small catholic secondary school with approximately 411 students. It offers education for years 7-12. 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 College has approximate annual tuition fees of $3,646. Actual fees may vary by year level, and additional costs for uniforms, camps, and extracurricular activities typically apply. The school's value score is 45/100, which measures academic outcomes relative to the cost of attendance.
St Mary's College has a student-to-teacher ratio of 10.6:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 32% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 88%, which is moderate.
St Mary's College is located in Gunnedah, NSW, classified as a outer regional school. With an ICSEA of 976 (36th percentile), the school community's socio-educational advantage is below average, which means the school serves a community with greater socio-educational challenges. 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.