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Independent schoolCombined Years Prep-12Co-edInner Regional

St Thomas Aquinas College

Updated Oct 2026 · ACARA 2025Tynong, Victoria 3813 · Cardinia LGA

47.4/ 100
Success Index
Lower 50%

#162 of 239 combined schools in VIC
#712 of 1,259 nationally

How is this calculated?
Students
204
-27% over 5 years
ICSEA
1030
60th percentile nationally
Students per teacher
8.6
23.8 FTE teachers
Year range
Prep-12

About St Thomas Aquinas College

St Thomas Aquinas College is an independent combined (K–12) school located in Tynong, Victoria (3813), within the Cardinia local government area. It caters for students from Prep to 12 and in 2025 enrolled 204 students (106 girls and 98 boys). The school is affiliated with Independent Schools Victoria.

St Thomas Aquinas College has an ICSEA value of 1030, indicating a socio-educational profile close to the national average of 1000. That places it in the 60th percentile of Australian schools. 16% of students come from the top socio-educational quarter and 26% from the bottom quarter.

The school employs 29 teachers (23.8 full-time equivalent) and 18 non-teaching staff, giving a student-to-teacher ratio of about 8.6 to 1. Enrolments have fallen by 27% over the past five years.

On the Success Index, St Thomas Aquinas College scores 47.4 out of 100, placing it in the lower 50% of combined schools nationally and 162nd of 239 combined schools in VIC (2nd of 3 in the Cardinia area).

VCE results (2025)

Published by the Victorian Curriculum and Assessment Authority. Study scores range from 0 to 50 with a state mean of 30; a score of 40 or above is in roughly the top 9% statewide.

Median study score
25
-1 vs 2024
Study scores 40+
2.5%
+2.5 pts vs 2024
VCE students
20
Enrolled in at least one VCE study
VCE completion
100%
43.8% applied for tertiary places
Results reflect the students who sat the VCE in 2025 and are not adjusted for intake. Schools with fewer than four students in a measure are suppressed by VCAA. See top VCE schools in Victoria.

Success Index breakdown

Each component is a percentile against schools of the same type across Australia.

  • Socio-educational advantage (ICSEA) (50%)ICSEA 1030
  • Students in the top advantage quarter (15%)16% of students
  • Teacher resourcing (students per teacher) (15%)8.6 students per teacher
  • Enrolment growth vs local area (5 years) (10%)-27% enrolments since 2020 (area median +31%)
  • ICSEA trend (5 years) (10%)-22 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.

St Thomas Aquinas College
Bottom quarterLower middleUpper middleTop quarter
Girls
106
Boys
98
Language background other than English
24%
Indigenous students
0%

Enrolments by year level

How St Thomas Aquinas College's 204 students are spread across year levels in 2025.

Prep intake
12
Year 7 cohort
16
Year 12 cohort
16

Enrolment trend

How enrolments at St Thomas Aquinas College have changed over the past decade.

1842523202015: 305 students2016: 297 students2017: 302 students2018: 269 students2019: 272 students2020: 281 students2021: 265 students2022: 233 students2023: 222 students2024: 222 students2025: 204 students201520172019202120232025
Total enrolments by year. Source: ACARA school profile data.

Free academic assessment

Is your child on track at St Thomas Aquinas College?

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 Springvale

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Schools near St Thomas Aquinas College

Closest schools by straight-line distance, with their Success Index.

Similar schools

Independent combined schools in VIC with a comparable ICSEA.

Frequently asked questions

Is St Thomas Aquinas College a public or private school?

St Thomas Aquinas College is a Independent school, which makes it a non-government (private) school affiliated with Independent Schools Victoria.

What year levels does St Thomas Aquinas College offer?

St Thomas Aquinas College offers Prep to 12. It is classified by ACARA as a combined school.

How many students attend St Thomas Aquinas College?

In 2025, St Thomas Aquinas College had 204 enrolled students (106 girls, 98 boys), a change of -27% over five years.

What is the ICSEA of St Thomas Aquinas College?

St Thomas Aquinas College has an ICSEA (Index of Community Socio-Educational Advantage) of 1030. 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 St Thomas Aquinas College rank in VIC?

St Thomas Aquinas College ranks 162nd of 239 combined schools in Victoria on the Success Index (47.4/100), and 712th of 1,259 nationally.

What is the student-to-teacher ratio at St Thomas Aquinas College?

St Thomas Aquinas College has about 8.6 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.

What are the VCE results at St Thomas Aquinas College?

In 2025, St Thomas Aquinas College recorded a median VCE study score of 25 with 2.5% of study scores at 40 or above, from 20 students enrolled in at least one VCE study. Source: VCAA Senior Secondary Completion and Achievement Information.

How big is the Year 7 cohort at St Thomas Aquinas College?

In 2025, St Thomas Aquinas College had 16 students in Year 7 and 16 in Year 12.

Is St Thomas Aquinas College co-ed?

Yes. St Thomas Aquinas College is a co-educational school enrolling both girls and boys.

What other schools are near St Thomas Aquinas College?

There are 10 other schools within 15 km of St Thomas Aquinas College 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 Aquinas College?

The closest Success Tutoring centre is Success Tutoring Springvale, about 44 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.