Iona College Geelong vs St Catherine of Siena Catholic Primary School
A head-to-head comparison of two schools in Victoria, 2.5 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Iona College Geelong
Charlemont · Catholic high school · 7-12
1,332 students · ICSEA 1078
St Catherine of Siena Catholic Primary School
Armstrong Creek · Catholic primary · Prep-6
504 students · ICSEA 1070
| Measure | Iona College Geelong Charlemont VIC | St Catherine of Siena Catholic Primary School Armstrong Creek VIC |
|---|---|---|
| Success Index | 76 Top 25% | 74 Top 25% |
| State rank (type) | #69 of 348 | #296 of 1,290 |
| National rank (type) | #157 of 1,472 | #651 of 4,908 |
| Sector | Catholic | Catholic |
| Type | Secondary | Primary |
| Year range | 7-12 | Prep-6 |
| Students | 1,332 | 504 |
| Girls / boys | 630 / 702 | 281 / 223 |
| Foundation intake | – | 89 |
| Year 7 cohort | 305 | – |
| Year 12 cohort | 144 | – |
| VCE median study score VCAA, latest year | 28 | – |
| VCE study scores 40+ | 3.6% | – |
| 5-year enrolment growth | +776% | +276% |
| ICSEA Average 1000 | 1078 | 1070 |
| ICSEA percentile | 78th | 75th |
| Top SEA quarter | 27% | 24% |
| Bottom SEA quarter | 9% | 10% |
| Students per teacher | 13.1 | 12.6 |
| Teaching staff (FTE) | 101.9 | 40.1 |
| Non-teaching staff (FTE) | 76.6 | 14.5 |
| Language background other than English | 4% | 15% |
| Indigenous students | 1% | 1% |
| Suburb | Charlemont 3217 | Armstrong Creek 3217 |
| Council area | Greater Geelong | Greater Geelong |
| Remoteness | Major Cities | Major Cities |
| Website | iona.vic.edu.au/ | stcatherine.catholic.edu.au |
The verdict
- •Iona College Geelong scores higher on the Success Index (75.5 vs 73.8).
- •Iona College Geelong has the higher ICSEA (1078 vs 1070), indicating a more advantaged community.
- •Iona College Geelong is the larger school with 1,332 students compared with 504.
- •Iona College Geelong has grown faster over five years (776% vs 276%).
The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- 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 South Geelong
Frequently asked questions
Is Iona College Geelong better than St Catherine of Siena Catholic Primary School?
On the Success Index, Iona College Geelong ranks higher (75.5 vs 73.8 out of 100). The index measures community advantage and momentum from ACARA data, not teaching quality, so visit both schools before deciding.
How far apart are Iona College Geelong and St Catherine of Siena Catholic Primary School?
About 2.5 km in a straight line, between Charlemont and Armstrong Creek in Victoria.
Which has the better student-to-teacher ratio?
Iona College Geelong has 13.1 students per full-time-equivalent teacher and St Catherine of Siena Catholic Primary School has 12.6.
How do Iona College Geelong and St Catherine of Siena Catholic Primary School rank in VIC?
Iona College Geelong is 69th of 348 and St Catherine of Siena Catholic Primary School is 296th of 1,290 among secondary schools in Victoria on the 2025 Success Index.