Geelong Grammar School vs Northern Bay P-12 College
A head-to-head comparison of two combined schools in Victoria, 4.0 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Geelong Grammar School
Corio · Independent combined · Prep-12
1,422 students · ICSEA 1149
Northern Bay P-12 College
Corio · Government combined · Prep-12
1,726 students · ICSEA 877
| Measure | Geelong Grammar School Corio VIC | Northern Bay P-12 College Corio VIC |
|---|---|---|
| Success Index | 79 Top 10% | 27 Lower 50% |
| State rank (type) | #51 of 239 | #231 of 239 |
| National rank (type) | #131 of 1,259 | #1152 of 1,259 |
| Sector | Independent | Government |
| Type | Combined | Combined |
| Year range | Prep-12 | Prep-12 |
| Students | 1,422 | 1,726 |
| Girls / boys | 614 / 808 | 832 / 894 |
| Foundation intake | 49 | 130 |
| Year 7 cohort | 86 | 117 |
| Year 12 cohort | 211 | 79 |
| VCE median study score VCAA, latest year | 32 | 23 |
| VCE study scores 40+ | 10.6% | 1.4% |
| 5-year enrolment growth | +0% | -6% |
| ICSEA Average 1000 | 1149 | 877 |
| ICSEA percentile | 95th | 7th |
| Top SEA quarter | 62% | 1% |
| Bottom SEA quarter | 2% | 76% |
| Students per teacher | 8.0 | 8.6 |
| Teaching staff (FTE) | 178.2 | 199.9 |
| Non-teaching staff (FTE) | 176.8 | 160.8 |
| Language background other than English | 36% | 35% |
| Indigenous students | 1% | 11% |
| Suburb | Corio 3214 | Corio 3214 |
| Council area | Greater Geelong | Greater Geelong |
| Remoteness | Major Cities | Major Cities |
| Website | www.ggs.vic.edu.au | www.nbc.vic.edu.au/ |
The verdict
- •Geelong Grammar School scores higher on the Success Index (78.5 vs 26.5).
- •Geelong Grammar School has the higher ICSEA (1149 vs 877), indicating a more advantaged community.
- •Geelong Grammar School has fewer students per teacher (8.0 vs 8.6).
- •Northern Bay P-12 College is the larger school with 1,726 students compared with 1,422.
- •Geelong Grammar School has grown faster over five years (0% vs -6%).
- •Geelong Grammar School is a independent school while Northern Bay P-12 College 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 Geelong Grammar School better than Northern Bay P-12 College?
On the Success Index, Geelong Grammar School ranks higher (78.5 vs 26.5 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 Geelong Grammar School and Northern Bay P-12 College?
About 4.0 km in a straight line, between Corio and Corio in Victoria.
Which has the better student-to-teacher ratio?
Geelong Grammar School has 8.0 students per full-time-equivalent teacher and Northern Bay P-12 College has 8.6.
How do Geelong Grammar School and Northern Bay P-12 College rank in VIC?
Geelong Grammar School is 51st of 239 and Northern Bay P-12 College is 231st of 239 among combined schools in Victoria on the 2025 Success Index.