Castle Hill High School vs Turramurra High School
A head-to-head comparison of two secondary schools in New South Wales, 11 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
Turramurra High School
South Turramurra · Government high school · 7-12
987 students · ICSEA 1118
| Measure | Castle Hill High School Castle Hill NSW | Turramurra High School South Turramurra NSW |
|---|---|---|
| Success Index | 72 Top 25% | 67 Top 25% |
| State rank (type) | #88 of 539 | #150 of 539 |
| National rank (type) | #243 of 1,472 | #368 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 1,845 | 987 |
| Girls / boys | 867 / 978 | 441 / 546 |
| Foundation intake | – | – |
| Year 7 cohort | 292 | 151 |
| Year 12 cohort | 305 | 185 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -6% | -19% |
| ICSEA Average 1000 | 1121 | 1118 |
| ICSEA percentile | 89th | 89th |
| Top SEA quarter | 48% | 48% |
| Bottom SEA quarter | 5% | 5% |
| Students per teacher | 14.8 | 14.4 |
| Teaching staff (FTE) | 124.1 | 68.5 |
| Non-teaching staff (FTE) | 19.6 | 13.8 |
| Language background other than English | 68% | 40% |
| Indigenous students | 0% | 0% |
| Suburb | Castle Hill 2154 | South Turramurra 2074 |
| Council area | The Hills | Ku-ring-gai |
| Remoteness | Major Cities | Major Cities |
| Website | castlehill-h.schools.nsw.gov.au | turramurra-h.schools.nsw.gov.au |
The verdict
- •Castle Hill High School scores higher on the Success Index (71.7 vs 66.5).
- •Castle Hill High School has the higher ICSEA (1121 vs 1118), indicating a more advantaged community.
- •Castle Hill High School is the larger school with 1,845 students compared with 987.
- •Castle Hill High School has grown faster over five years (-6% vs -19%).
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 Turramurra High School?
On the Success Index, Castle Hill High School ranks higher (71.7 vs 66.5 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 Turramurra High School?
About 11 km in a straight line, between Castle Hill and South Turramurra 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 Turramurra High School has 14.4.
How do Castle Hill High School and Turramurra High School rank in NSW?
Castle Hill High School is 88th of 539 and Turramurra High School is 150th of 539 among secondary schools in New South Wales on the 2025 Success Index.