St Thomas' School
Updated Oct 2026 · ACARA 2025Goodwood, South Australia 5034 · Unley LGA
About St Thomas' School
St Thomas' School is a catholic primary school located in Goodwood, South Australia (5034), within the Unley local government area. It caters for students from R to 6 and in 2025 enrolled 297 students (142 girls and 155 boys). The school is affiliated with Catholic Education South Australia.
St Thomas' School has an ICSEA value of 1116, indicating very high socio-educational advantage. That places it in the 88th percentile of Australian schools. 44% of students come from the top socio-educational quarter and 4% from the bottom quarter.
The school employs 27 teachers (20.2 full-time equivalent) and 22 non-teaching staff, giving a student-to-teacher ratio of about 14.7 to 1. Enrolments have fallen by 22% over the past five years.
On the Success Index, St Thomas' School scores 71.5 out of 100, placing it in the top 25% of primary schools nationally and 50th of 348 primary schools in SA (8th of 10 in the Unley area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1116
- Students in the top advantage quarter (15%)44% of students
- Teacher resourcing (students per teacher) (15%)14.7 students per teacher
- Enrolment growth vs local area (5 years) (10%)-22% enrolments since 2020 (area median -17%)
- ICSEA trend (5 years) (10%)-3 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 St Thomas' School's 297 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Thomas' School have changed over the past decade.
Free academic assessment
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Schools near St Thomas' School
Closest schools by straight-line distance, with their Success Index.
Goodwood Primary School
Goodwood · Government primary · R-6
408 students · ICSEA 1147 · 392 m away
Annesley College
Wayville · Independent primary · R-6
292 students · ICSEA 1164 · 1.4 km away
Walford Anglican School for Girls
Hyde Park · Independent combined · R-12
400 students · ICSEA 1162 · 1.5 km away
Unley Primary School
Unley · Government primary · R-6
470 students · ICSEA 1154 · 1.5 km away
Saint Spyridon College
Unley · Independent primary · R-6
39 students · ICSEA 1081 · 1.5 km away
Cabra Dominican College
Cumberland Park · Catholic combined · 7-12
1,165 students · ICSEA 1065 · 1.6 km away
Aspect Treetop School
Ashford · Independent special · U
75 students · ICSEA 1080 · 1.6 km away
Westbourne Park Primary School
Westbourne Park · Government primary · R-6
480 students · ICSEA 1126 · 1.7 km away
Black Forest Primary School
Black Forest · Government primary · R-6
410 students · ICSEA 1108 · 1.9 km away
Richmond Primary School
Keswick · Government primary · U, R-6
362 students · ICSEA 1122 · 2.2 km away
Similar schools
Catholic primary schools in SA with a comparable ICSEA.
St Mary's Memorial School
Glenelg · Catholic primary · R-6
405 students · ICSEA 1113
Star of the Sea School
Henley Beach · Catholic primary · R-6
558 students · ICSEA 1108
St Joseph's Memorial School
Norwood · Catholic primary · R-6
192 students · ICSEA 1108
St Pius X School
Windsor Gardens · Catholic primary · R-6
552 students · ICSEA 1108
Immaculate Heart of Mary School
Brompton · Catholic primary · R-6
153 students · ICSEA 1105
St Monica's Parish School
Walkerville · Catholic primary · R-6
192 students · ICSEA 1102
Frequently asked questions
Is St Thomas' School a public or private school?
St Thomas' School is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Education South Australia.
What year levels does St Thomas' School offer?
St Thomas' School offers R to 6. It is classified by ACARA as a primary school.
How many students attend St Thomas' School?
In 2025, St Thomas' School had 297 enrolled students (142 girls, 155 boys), a change of -22% over five years.
What is the ICSEA of St Thomas' School?
St Thomas' School has an ICSEA (Index of Community Socio-Educational Advantage) of 1116. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does St Thomas' School rank in SA?
St Thomas' School ranks 50th of 348 primary schools in South Australia on the Success Index (71.5/100), and 878th of 4,908 nationally.
What is the student-to-teacher ratio at St Thomas' School?
St Thomas' School has about 14.7 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How many students start Reception at St Thomas' School each year?
In 2025, St Thomas' School had 44 students in Reception and 43 in Year 6.
Is St Thomas' School co-ed?
Yes. St Thomas' School is a co-educational school enrolling both girls and boys.
What other schools are near St Thomas' School?
There are 10 other schools within 15 km of St Thomas' 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 St Thomas' School?
The closest Success Tutoring centre is Success Tutoring Windsor Gardens, about 11 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.