Balcombe Grammar School vs Mornington Special Developmental School
A head-to-head comparison of two schools in Victoria, 5.7 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Balcombe Grammar School
Mount Martha · Independent combined · Prep-12
954 students · ICSEA 1096
Mornington Special Developmental School
Mornington · Government special · U
24 students · ICSEA 920
| Measure | Balcombe Grammar School Mount Martha VIC | Mornington Special Developmental School Mornington VIC |
|---|---|---|
| Success Index | 63 Top 50% | – Not rated |
| State rank (type) | #120 of 239 | – |
| National rank (type) | #413 of 1,259 | – |
| Sector | Independent | Government |
| Type | Combined | Special |
| Year range | Prep-12 | U |
| Students | 954 | 24 |
| Girls / boys | 480 / 474 | 7 / 17 |
| Foundation intake | 50 | – |
| Year 7 cohort | 104 | – |
| Year 12 cohort | 92 | – |
| VCE median study score VCAA, latest year | 31 | – |
| VCE study scores 40+ | 9.6% | – |
| 5-year enrolment growth | +6% | -20% |
| ICSEA Average 1000 | 1096 | 920 |
| ICSEA percentile | 83th | 15th |
| Top SEA quarter | 34% | 3% |
| Bottom SEA quarter | 5% | 54% |
| Students per teacher | 12.6 | 2.6 |
| Teaching staff (FTE) | 75.5 | 9.2 |
| Non-teaching staff (FTE) | 42.9 | 8.5 |
| Language background other than English | 7% | 12% |
| Indigenous students | 1% | 21% |
| Suburb | Mount Martha 3934 | Mornington 3931 |
| Council area | Mornington Peninsula | Mornington Peninsula |
| Remoteness | Major Cities | Major Cities |
| Website | www.balcombegrammar.vic.edu.au | www.morningtonsds.vic.edu.au/ |
The verdict
- •Balcombe Grammar School has the higher ICSEA (1096 vs 920), indicating a more advantaged community.
- •Mornington Special Developmental School has fewer students per teacher (2.6 vs 12.6).
- •Balcombe Grammar School is the larger school with 954 students compared with 24.
- •Balcombe Grammar School has grown faster over five years (6% vs -20%).
- •Balcombe Grammar School is a independent school while Mornington Special Developmental 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 Balcombe Grammar School better than Mornington Special Developmental School?
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 Balcombe Grammar School and Mornington Special Developmental School?
About 5.7 km in a straight line, between Mount Martha and Mornington in Victoria.
Which has the better student-to-teacher ratio?
Balcombe Grammar School has 12.6 students per full-time-equivalent teacher and Mornington Special Developmental School has 2.6.
How do Balcombe Grammar School and Mornington Special Developmental School rank in VIC?
Balcombe Grammar School is 120th of 239 and Mornington Special Developmental School is unranked among combined schools in Victoria on the 2025 Success Index.