South Thornlie Primary School
Updated Oct 2026 · ACARA 2025Thornlie, Western Australia 6108 · Gosnells LGA
#379 of 583 primary schools in WA
#3421 of 4,908 nationally
About South Thornlie Primary School
South Thornlie Primary School is a public primary school located in Thornlie, Western Australia (6108), within the Gosnells local government area. It caters for students from K to 6 and in 2025 enrolled 421 students (201 girls and 220 boys).
South Thornlie Primary School has an ICSEA value of 997, indicating a socio-educational profile close to the national average of 1000. That places it in the 45th percentile of Australian schools. 11% of students come from the top socio-educational quarter and 34% from the bottom quarter.
The school employs 33 teachers (25.2 full-time equivalent) and 22 non-teaching staff, giving a student-to-teacher ratio of about 15.9 to 1. Enrolments have fallen by 6% over the past five years.
On the Success Index, South Thornlie Primary School scores 40.1 out of 100, placing it in the lower 50% of primary schools nationally and 379th of 583 primary schools in WA (15th of 26 in the Gosnells area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 997
- Students in the top advantage quarter (15%)11% of students
- Teacher resourcing (students per teacher) (15%)15.9 students per teacher
- Enrolment growth vs local area (5 years) (10%)-6% enrolments since 2020 (area median -4%)
- ICSEA trend (5 years) (10%)-10 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 South Thornlie Primary School's 421 students are spread across year levels in 2025.
Enrolment trend
How enrolments at South Thornlie Primary School have changed over the past decade.
Free academic assessment
Is your child on track at South Thornlie Primary School?
Rankings tell you about a school community. A free Success Tutoring assessment tells you about your child: exactly where they are in English and Maths, where the gaps are, and a plan to close them. Small-group, Australian-curriculum tutoring with no lock-in contracts.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Your nearest centre: Success Tutoring Canning Vale
Schools near South Thornlie Primary School
Closest schools by straight-line distance, with their Success Index.
Thornlie Senior High School
Thornlie · Government high school · 7-12
1,125 students · ICSEA 969 · 182 m away
Sacred Heart Primary School
Thornlie · Catholic primary · PP-6
387 students · ICSEA 1050 · 240 m away
Forest Crescent Primary School
Thornlie · Government primary · K-6
627 students · ICSEA 1011 · 1.4 km away
Australian Islamic College (Thornlie)
Thornlie · Independent combined · PP-6
733 students · ICSEA 1019 · 1.4 km away
Thornlie Primary School
Thornlie · Government primary · K-6
470 students · ICSEA 941 · 1.6 km away
Yale Primary School
Thornlie · Government primary · K-6
398 students · ICSEA 969 · 1.8 km away
Huntingdale Primary School
Huntingdale · Government primary · K-6
439 students · ICSEA 956 · 1.8 km away
Excelsior Primary School
Canning Vale · Government primary · K-6
330 students · ICSEA 1060 · 2.2 km away
Wirrabirra Primary School
Gosnells · Government primary · K-6
366 students · ICSEA 923 · 2.2 km away
Wirrabirra Education Support Centre
Gosnells · Government special · K-6
67 students · ICSEA 965 · 2.2 km away
Similar schools
Government primary schools in WA with a comparable ICSEA.
Greenmount Primary School
Greenmount · Government primary · K-6
380 students · ICSEA 997
Serpentine Primary School
Serpentine · Government primary · K-6
229 students · ICSEA 997
Vasse Primary School
Vasse · Government primary · K-6
744 students · ICSEA 997
Settlers Primary School
Baldivis · Government primary · K-6
661 students · ICSEA 997
Rivergums Primary School
Baldivis · Government primary · K-6
566 students · ICSEA 997
Balingup Primary School
Balingup · Government primary · K-6
57 students · ICSEA 998
Frequently asked questions
Is South Thornlie Primary School a public or private school?
South Thornlie Primary School is a public (government) school run by the Western Australia education department.
What year levels does South Thornlie Primary School offer?
South Thornlie Primary School offers K to 6. It is classified by ACARA as a primary school.
How many students attend South Thornlie Primary School?
In 2025, South Thornlie Primary School had 421 enrolled students (201 girls, 220 boys), a change of -6% over five years.
What is the ICSEA of South Thornlie Primary School?
South Thornlie Primary School has an ICSEA (Index of Community Socio-Educational Advantage) of 997. 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 South Thornlie Primary School rank in WA?
South Thornlie Primary School ranks 379th of 583 primary schools in Western Australia on the Success Index (40.1/100), and 3421st of 4,908 nationally.
What is the student-to-teacher ratio at South Thornlie Primary School?
South Thornlie Primary School has about 15.9 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How many students start Pre-primary at South Thornlie Primary School each year?
In 2025, South Thornlie Primary School had 50 students in Pre-primary and 52 in Year 6.
Is South Thornlie Primary School co-ed?
Yes. South Thornlie Primary School is a co-educational school enrolling both girls and boys.
What other schools are near South Thornlie Primary School?
There are 10 other schools within 15 km of South Thornlie Primary 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 South Thornlie Primary School?
The closest Success Tutoring centre is Success Tutoring Canning Vale, about 3.6 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.