Castle Hill High School vs Gilroy Catholic College
A head-to-head comparison of two secondary schools in New South Wales, 1.5 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Castle Hill High School
Castle Hill · Government high school · 7-12
1,845 students · ICSEA 1121
Gilroy Catholic College
Castle Hill · Catholic high school · 7-12
1,307 students · ICSEA 1096
| Measure | Castle Hill High School Castle Hill NSW | Gilroy Catholic College Castle Hill NSW |
|---|---|---|
| Success Index | 72 Top 25% | 73 Top 25% |
| State rank (type) | #88 of 539 | #68 of 539 |
| National rank (type) | #243 of 1,472 | #196 of 1,472 |
| Sector | Government | Catholic |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 1,845 | 1,307 |
| Girls / boys | 867 / 978 | 666 / 641 |
| Foundation intake | – | – |
| Year 7 cohort | 292 | 239 |
| Year 12 cohort | 305 | 192 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -6% | +2% |
| ICSEA Average 1000 | 1121 | 1096 |
| ICSEA percentile | 89th | 83th |
| Top SEA quarter | 48% | 35% |
| Bottom SEA quarter | 5% | 6% |
| Students per teacher | 14.8 | 14.2 |
| Teaching staff (FTE) | 124.1 | 92.0 |
| Non-teaching staff (FTE) | 19.6 | 20.6 |
| Language background other than English | 68% | 39% |
| Indigenous students | 0% | 1% |
| Suburb | Castle Hill 2154 | Castle Hill 2154 |
| Council area | The Hills | The Hills |
| Remoteness | Major Cities | Major Cities |
| Website | castlehill-h.schools.nsw.gov.au | www.gilroy.catholic.edu.au |
The verdict
- •Gilroy Catholic College scores higher on the Success Index (73.4 vs 71.7).
- •Castle Hill High School has the higher ICSEA (1121 vs 1096), indicating a more advantaged community.
- •Gilroy Catholic College has fewer students per teacher (14.2 vs 14.8).
- •Castle Hill High School is the larger school with 1,845 students compared with 1,307.
- •Gilroy Catholic College has grown faster over five years (2% vs -6%).
- •Castle Hill High School is a government school while Gilroy Catholic College is a catholic 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 Castle Hill High School better than Gilroy Catholic College?
On the Success Index, Gilroy Catholic College ranks higher (73.4 vs 71.7 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 Castle Hill High School and Gilroy Catholic College?
About 1.5 km in a straight line, between Castle Hill and Castle Hill in New South Wales.
Which has the better student-to-teacher ratio?
Castle Hill High School has 14.8 students per full-time-equivalent teacher and Gilroy Catholic College has 14.2.
How do Castle Hill High School and Gilroy Catholic College rank in NSW?
Castle Hill High School is 88th of 539 and Gilroy Catholic College is 68th of 539 among secondary schools in New South Wales on the 2025 Success Index.