South Thornlie Primary is a co-ed government school in Thornlie with a strong pastoral focus and specialist teaching across music, arts and sports.
NAPLAN in line with national year-level averages; the result is a B overall.
South Thornlie Primary is a co-ed government school in Thornlie with a strong pastoral focus and specialist teaching across music, arts and sports. The school runs dedicated gifted and talented programs and offers learning support through a school psychologist and chaplain. A robotics club is among its structured activities. The school suits families seeking a well-rounded primary education with arts and athletics alongside pastoral care.
South Thornlie Primary School is also known as STPS, STPS Thornlie and South Thornlie PS.
South Thornlie Primary School has an overall SchoolRank score of 56.2/100, rated "Average". This score is calculated from academic results, student growth, wellbeing, extracurricular programs, and value for money. Academically, the school scores 51/100, indicating moderate performance relative to other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 997, close to the national average of 1,000.
In 2025 NAPLAN testing at South Thornlie Primary School, Year 3 students averaged 394 across the tested NAPLAN domains, below the national average of 407 for that year level, and Year 5 students averaged 483, in line with 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.
South Thornlie Primary School is a small government primary school with approximately 421 students. It offers education for years K-6. As a government school, enrolment is generally available to students living within the school's designated catchment zone. Families outside the zone may apply for out-of-area placement subject to availability.
South Thornlie Primary School is a government school, so there are no tuition fees. Families may be asked to contribute to voluntary school fees covering materials, excursions, and activities. The school has a value score of 54/100 on SchoolRank, which compares educational outcomes relative to cost, government schools typically score well on this measure.
South Thornlie Primary School has a student-to-teacher ratio of 16.7:1. This is above the national average of approximately 14:1, meaning class sizes are typical for Australian schools. Support staff make up 39% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 91%, which is moderate.
South Thornlie Primary School is located in Thornlie, WA, classified as a major cities school. With an ICSEA of 997 (45th percentile), the school community's socio-educational advantage is around the national average. 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.