Central Coast Grammar School vs Our Lady Star of The Sea Catholic Primary School
A head-to-head comparison of two schools in New South Wales, 1.8 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Central Coast Grammar School
Erina Heights · Independent combined · K-12
1,561 students · ICSEA 1155
Our Lady Star of The Sea Catholic Primary School
Terrigal · Catholic primary · K-6
605 students · ICSEA 1102
| Measure | Central Coast Grammar School Erina Heights NSW | Our Lady Star of The Sea Catholic Primary School Terrigal NSW |
|---|---|---|
| Success Index | 77 Top 25% | 70 Top 25% |
| State rank (type) | #54 of 314 | #300 of 1,619 |
| National rank (type) | #148 of 1,259 | #992 of 4,908 |
| Sector | Independent | Catholic |
| Type | Combined | Primary |
| Year range | K-12 | K-6 |
| Students | 1,561 | 605 |
| Girls / boys | 759 / 802 | 292 / 313 |
| Foundation intake | 87 | 80 |
| Year 7 cohort | 170 | – |
| Year 12 cohort | 118 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +20% | +9% |
| ICSEA Average 1000 | 1155 | 1102 |
| ICSEA percentile | 96th | 85th |
| Top SEA quarter | 62% | 41% |
| Bottom SEA quarter | 2% | 4% |
| Students per teacher | 11.6 | 20.9 |
| Teaching staff (FTE) | 134.8 | 29.0 |
| Non-teaching staff (FTE) | 58.6 | 4.0 |
| Language background other than English | 16% | 12% |
| Indigenous students | 2% | 4% |
| Suburb | Erina Heights 2260 | Terrigal 2260 |
| Council area | Central Coast (NSW) | Central Coast (NSW) |
| Remoteness | Major Cities | Major Cities |
| Website | www.ccgs.nsw.edu.au | www.olssdbb.catholic.edu.au |
The verdict
- •Central Coast Grammar School scores higher on the Success Index (77.3 vs 70.3).
- •Central Coast Grammar School has the higher ICSEA (1155 vs 1102), indicating a more advantaged community.
- •Central Coast Grammar School has fewer students per teacher (11.6 vs 20.9).
- •Central Coast Grammar School is the larger school with 1,561 students compared with 605.
- •Central Coast Grammar School has grown faster over five years (20% vs 9%).
- •Central Coast Grammar School is a independent school while Our Lady Star of The Sea Catholic Primary School 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 Central Coast Grammar School better than Our Lady Star of The Sea Catholic Primary School?
On the Success Index, Central Coast Grammar School ranks higher (77.3 vs 70.3 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 Central Coast Grammar School and Our Lady Star of The Sea Catholic Primary School?
About 1.8 km in a straight line, between Erina Heights and Terrigal in New South Wales.
Which has the better student-to-teacher ratio?
Central Coast Grammar School has 11.6 students per full-time-equivalent teacher and Our Lady Star of The Sea Catholic Primary School has 20.9.
How do Central Coast Grammar School and Our Lady Star of The Sea Catholic Primary School rank in NSW?
Central Coast Grammar School is 54th of 314 and Our Lady Star of The Sea Catholic Primary School is 300th of 1,619 among combined schools in New South Wales on the 2025 Success Index.