Knox Grammar School vs St Edmund's College
A head-to-head comparison of two schools in New South Wales, 1.2 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Knox Grammar School
Wahroonga · Independent combined · K-12
3,345 students · ICSEA 1187
St Edmund's College
Wahroonga · Independent special · U
112 students · ICSEA 1107
| Measure | Knox Grammar School Wahroonga NSW | St Edmund's College Wahroonga NSW |
|---|---|---|
| Success Index | 83 Top 5% | – Not rated |
| State rank (type) | #24 of 314 | – |
| National rank (type) | #67 of 1,259 | – |
| Sector | Independent | Independent |
| Type | Combined | Special |
| Year range | K-12 | U |
| Students | 3,345 | 112 |
| Girls / boys | 73 / 3,272 | 47 / 65 |
| Foundation intake | 119 | – |
| Year 7 cohort | 380 | – |
| Year 12 cohort | 376 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +8% | -7% |
| ICSEA Average 1000 | 1187 | 1107 |
| ICSEA percentile | 99th | 86th |
| Top SEA quarter | 77% | 46% |
| Bottom SEA quarter | 1% | 7% |
| Students per teacher | 11.5 | 4.9 |
| Teaching staff (FTE) | 291.6 | 22.8 |
| Non-teaching staff (FTE) | 262.6 | 31.6 |
| Language background other than English | 53% | 27% |
| Indigenous students | 1% | 3% |
| Suburb | Wahroonga 2076 | Wahroonga 2076 |
| Council area | Ku-ring-gai | Ku-ring-gai |
| Remoteness | Major Cities | Major Cities |
| Website | www.knox.nsw.edu.au/ | www.stedmunds.nsw.edu.au/ |
The verdict
- •Knox Grammar School has the higher ICSEA (1187 vs 1107), indicating a more advantaged community.
- •St Edmund's College has fewer students per teacher (4.9 vs 11.5).
- •Knox Grammar School is the larger school with 3,345 students compared with 112.
- •Knox Grammar School has grown faster over five years (8% vs -7%).
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 Knox Grammar School better than St Edmund's College?
The two schools are very close on the Success Index. Differences in sector, size, year range and distance from home will matter more than the score.
How far apart are Knox Grammar School and St Edmund's College?
About 1.2 km in a straight line, between Wahroonga and Wahroonga in New South Wales.
Which has the better student-to-teacher ratio?
Knox Grammar School has 11.5 students per full-time-equivalent teacher and St Edmund's College has 4.9.
How do Knox Grammar School and St Edmund's College rank in NSW?
Knox Grammar School is 24th of 314 and St Edmund's College is unranked among combined schools in New South Wales on the 2025 Success Index.