Concordia College vs Unley High School
A head-to-head comparison of two schools in South Australia, 1.2 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Concordia College
Highgate · Independent combined · R-12
1,312 students · ICSEA 1140
Unley High School
Netherby · Government high school · 7-12
1,547 students · ICSEA 1084
| Measure | Concordia College Highgate SA | Unley High School Netherby SA |
|---|---|---|
| Success Index | 74 Top 25% | 68 Top 25% |
| State rank (type) | #14 of 145 | #18 of 84 |
| National rank (type) | #195 of 1,259 | #324 of 1,472 |
| Sector | Independent | Government |
| Type | Combined | Secondary |
| Year range | R-12 | 7-12 |
| Students | 1,312 | 1,547 |
| Girls / boys | 646 / 666 | 665 / 882 |
| Foundation intake | 49 | – |
| Year 7 cohort | 151 | 249 |
| Year 12 cohort | 142 | 239 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +6% | +25% |
| ICSEA Average 1000 | 1140 | 1084 |
| ICSEA percentile | 93th | 80th |
| Top SEA quarter | 56% | 34% |
| Bottom SEA quarter | 2% | 11% |
| Students per teacher | 12.2 | 14.4 |
| Teaching staff (FTE) | 107.2 | 106.7 |
| Non-teaching staff (FTE) | 56.9 | 35.6 |
| Language background other than English | 17% | 30% |
| Indigenous students | 1% | 1% |
| Suburb | Highgate 5063 | Netherby 5062 |
| Council area | Unley | Mitcham |
| Remoteness | Major Cities | Major Cities |
| Website | www.concordia.sa.edu.au | www.uhs.sa.edu.au |
The verdict
- •Concordia College scores higher on the Success Index (73.9 vs 68.2).
- •Concordia College has the higher ICSEA (1140 vs 1084), indicating a more advantaged community.
- •Concordia College has fewer students per teacher (12.2 vs 14.4).
- •Unley High School is the larger school with 1,547 students compared with 1,312.
- •Unley High School has grown faster over five years (25% vs 6%).
- •Concordia College is a independent school while Unley High School is a government school, so fees and enrolment rules differ.
The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.
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Frequently asked questions
Is Concordia College better than Unley High School?
On the Success Index, Concordia College ranks higher (73.9 vs 68.2 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 Concordia College and Unley High School?
About 1.2 km in a straight line, between Highgate and Netherby in South Australia.
Which has the better student-to-teacher ratio?
Concordia College has 12.2 students per full-time-equivalent teacher and Unley High School has 14.4.
How do Concordia College and Unley High School rank in SA?
Concordia College is 14th of 145 and Unley High School is 18th of 84 among combined schools in South Australia on the 2025 Success Index.