Nazareth Catholic College vs Underdale High School
A head-to-head comparison of two schools in South Australia, 830 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Nazareth Catholic College
Flinders Park · Catholic combined · R-12
2,576 students · ICSEA 1049
Underdale High School
Underdale · Government high school · 7-12
629 students · ICSEA 1000
| Measure | Nazareth Catholic College Flinders Park SA | Underdale High School Underdale SA |
|---|---|---|
| Success Index | 54 Top 50% | 46 Lower 50% |
| State rank (type) | #45 of 145 | #40 of 84 |
| National rank (type) | #568 of 1,259 | #819 of 1,472 |
| Sector | Catholic | Government |
| Type | Combined | Secondary |
| Year range | R-12 | 7-12 |
| Students | 2,576 | 629 |
| Girls / boys | 1,276 / 1,300 | 274 / 355 |
| Foundation intake | 87 | – |
| Year 7 cohort | 396 | 68 |
| Year 12 cohort | 228 | 116 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +27% | +15% |
| ICSEA Average 1000 | 1049 | 1000 |
| ICSEA percentile | 68th | 47th |
| Top SEA quarter | 21% | 11% |
| Bottom SEA quarter | 17% | 36% |
| Students per teacher | 13.2 | 13.2 |
| Teaching staff (FTE) | 193.9 | 47.5 |
| Non-teaching staff (FTE) | 99.3 | 20.9 |
| Language background other than English | 27% | 42% |
| Indigenous students | 1% | 2% |
| Suburb | Flinders Park 5025 | Underdale 5032 |
| Council area | Charles Sturt | West Torrens |
| Remoteness | Major Cities | Major Cities |
| Website | www.nazareth.org.au/ | www.underdale.sa.edu.au |
The verdict
- •Nazareth Catholic College scores higher on the Success Index (53.8 vs 46.2).
- •Nazareth Catholic College has the higher ICSEA (1049 vs 1000), indicating a more advantaged community.
- •Nazareth Catholic College is the larger school with 2,576 students compared with 629.
- •Nazareth Catholic College has grown faster over five years (27% vs 15%).
- •Nazareth Catholic College is a catholic school while Underdale 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 Nazareth Catholic College better than Underdale High School?
On the Success Index, Nazareth Catholic College ranks higher (53.8 vs 46.2 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 Nazareth Catholic College and Underdale High School?
About 830 m in a straight line, between Flinders Park and Underdale in South Australia.
Which has the better student-to-teacher ratio?
Nazareth Catholic College has 13.2 students per full-time-equivalent teacher and Underdale High School has 13.2.
How do Nazareth Catholic College and Underdale High School rank in SA?
Nazareth Catholic College is 45th of 145 and Underdale High School is 40th of 84 among combined schools in South Australia on the 2025 Success Index.