St Thomas' Catholic Primary School vs Willoughby Girls High School
A head-to-head comparison of two schools in New South Wales, 795 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
St Thomas' Catholic Primary School
Willoughby · Catholic primary · K-6
277 students · ICSEA 1161
Willoughby Girls High School
Willoughby · Government high school · 7-12
1,036 students · ICSEA 1152
| Measure | St Thomas' Catholic Primary School Willoughby NSW | Willoughby Girls High School Willoughby NSW |
|---|---|---|
| Success Index | 75 Top 10% | 80 Top 10% |
| State rank (type) | #136 of 1,619 | #21 of 539 |
| National rank (type) | #531 of 4,908 | #70 of 1,472 |
| Sector | Catholic | Government |
| Type | Primary | Secondary |
| Year range | K-6 | 7-12 |
| Students | 277 | 1,036 |
| Girls / boys | 144 / 133 | 1,036 / 0 |
| Foundation intake | 38 | – |
| Year 7 cohort | – | 176 |
| Year 12 cohort | – | 147 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -23% | +7% |
| ICSEA Average 1000 | 1161 | 1152 |
| ICSEA percentile | 97th | 96th |
| Top SEA quarter | 65% | 61% |
| Bottom SEA quarter | 0% | 2% |
| Students per teacher | 15.3 | 14.0 |
| Teaching staff (FTE) | 18.1 | 73.7 |
| Non-teaching staff (FTE) | 4.1 | 16.2 |
| Language background other than English | 26% | 65% |
| Indigenous students | 0% | 0% |
| Suburb | Willoughby 2068 | Willoughby 2068 |
| Council area | Willoughby | Willoughby |
| Remoteness | Major Cities | Major Cities |
| Website | www.stwdbb.catholic.edu.au | willoughbg-h.schools.nsw.gov.au |
The verdict
- •Willoughby Girls High School scores higher on the Success Index (79.9 vs 75.1).
- •St Thomas' Catholic Primary School has the higher ICSEA (1161 vs 1152), indicating a more advantaged community.
- •Willoughby Girls High School has fewer students per teacher (14.0 vs 15.3).
- •Willoughby Girls High School is the larger school with 1,036 students compared with 277.
- •Willoughby Girls High School has grown faster over five years (7% vs -23%).
- •St Thomas' Catholic Primary School is a catholic school while Willoughby Girls 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 St Thomas' Catholic Primary School better than Willoughby Girls High School?
On the Success Index, Willoughby Girls High School ranks higher (79.9 vs 75.1 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 St Thomas' Catholic Primary School and Willoughby Girls High School?
About 795 m in a straight line, between Willoughby and Willoughby in New South Wales.
Which has the better student-to-teacher ratio?
St Thomas' Catholic Primary School has 15.3 students per full-time-equivalent teacher and Willoughby Girls High School has 14.0.
How do St Thomas' Catholic Primary School and Willoughby Girls High School rank in NSW?
St Thomas' Catholic Primary School is 136th of 1,619 and Willoughby Girls High School is 21st of 539 among primary schools in New South Wales on the 2025 Success Index.