Chatham High School vs Gunnedah High School
A head-to-head comparison of two secondary schools in New South Wales, 235 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Chatham High School
Taree · Government high school · 7-12
493 students · ICSEA 814
Gunnedah High School
Gunnedah · Government high school · 7-12
438 students · ICSEA 820
| Measure | Chatham High School Taree NSW | Gunnedah High School Gunnedah NSW |
|---|---|---|
| Success Index | 21 Lower 50% | 23 Lower 50% |
| State rank (type) | #511 of 539 | #496 of 539 |
| National rank (type) | #1393 of 1,472 | #1355 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 493 | 438 |
| Girls / boys | 212 / 281 | 221 / 217 |
| Foundation intake | – | – |
| Year 7 cohort | 93 | 88 |
| Year 12 cohort | 48 | 34 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -5% | +1% |
| ICSEA Average 1000 | 814 | 820 |
| ICSEA percentile | 3th | 3th |
| Top SEA quarter | 1% | 2% |
| Bottom SEA quarter | 75% | 73% |
| Students per teacher | 9.2 | 8.4 |
| Teaching staff (FTE) | 53.4 | 52.4 |
| Non-teaching staff (FTE) | 16.8 | 17.6 |
| Language background other than English | 5% | 6% |
| Indigenous students | 47% | 53% |
| Suburb | Taree 2430 | Gunnedah 2380 |
| Council area | Mid-Coast | Gunnedah |
| Remoteness | Inner Regional | Outer Regional |
| Website | chatham-h.schools.nsw.gov.au | gunnedah-h.schools.nsw.gov.au |
The verdict
- •Gunnedah High School scores higher on the Success Index (23.2 vs 21.3).
- •Gunnedah High School has the higher ICSEA (820 vs 814), indicating a more advantaged community.
- •Gunnedah High School has fewer students per teacher (8.4 vs 9.2).
- •Chatham High School is the larger school with 493 students compared with 438.
- •Gunnedah High School has grown faster over five years (1% vs -5%).
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 Chatham High School better than Gunnedah High School?
On the Success Index, Gunnedah High School ranks higher (23.2 vs 21.3 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 Chatham High School and Gunnedah High School?
About 235 km in a straight line, between Taree and Gunnedah in New South Wales.
Which has the better student-to-teacher ratio?
Chatham High School has 9.2 students per full-time-equivalent teacher and Gunnedah High School has 8.4.
How do Chatham High School and Gunnedah High School rank in NSW?
Chatham High School is 511th of 539 and Gunnedah High School is 496th of 539 among secondary schools in New South Wales on the 2025 Success Index.