Mt Roskill Grammar vs Ormiston Senior College
A head-to-head comparison of two schools in Auckland, New Zealand, 16 km apart, using official New Zealand 2026 data. The better value in each row is highlighted.
Mt Roskill Grammar
Mount Roskill · State secondary (year 9-15) · Years 9–13
1,929 students
Ormiston Senior College
Flat Bush · State secondary (year 11-15)
1,529 students
| Measure | Mt Roskill Grammar Mount Roskill, Auckland | Ormiston Senior College Flat Bush, Auckland |
|---|---|---|
| Success Index (NZ) | 61 Top 50% | 71 Top 25% |
| Region rank | #53 of 101 | #45 of 101 |
| National rank | #159 of 486 | #97 of 486 |
| Sector | State | State |
| Type | Secondary (Year 9-15) | Secondary (Year 11-15) |
| Year range | Years 9–13 | – |
| Students | 1,929 | 1,529 |
| Equity Index (EQI) | 444 | 443 |
| Total roll | 1,929 | 1,529 |
| Roll growth (5 yrs) | -4.3% | 94.6% |
| Leavers with NCEA Level 2+ | 84.4% | 87.6% |
| Leavers with NCEA Level 3+ | – | – |
| Leavers with University Entrance | 65.8% | 70.3% |
| Māori students | 8.4% | 4.4% |
| Pacific students | 25.5% | 15.4% |
| International students | 3.5% | 0% |
| suburb or town | Mount Roskill | Flat Bush |
| region | Auckland | Auckland |
| Website | www.mrgs.school.nz | www.ormiston.school.nz/ |
The verdict
- •Ormiston Senior College scores higher on the Success Index (NZ) (71.1 vs 61.3).
- •Ormiston Senior College does better on equity index (fewer barriers is higher) (443 vs 444).
- •Mt Roskill Grammar does better on roll size (1,929 vs 1,529).
- •Ormiston Senior College does better on roll growth (5 years) (94.6% vs -4.3%).
- •Ormiston Senior College does better on school leavers with ncea level 2+ (87.6% vs 84.4%).
- •Mt Roskill Grammar is the larger school with 1,929 students compared with 1,529.
The Success Index (NZ) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Mt Roskill Grammar better than Ormiston Senior College?
On the Success Index (NZ), Ormiston Senior College ranks higher (71.1 vs 61.3 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Mt Roskill Grammar and Ormiston Senior College?
About 16 km in a straight line, between Mount Roskill and Flat Bush in Auckland.
Which has the better Equity Index (EQI)?
Mt Roskill Grammar: 444. Ormiston Senior College: 443. Ministry of Education measure of socio-economic barriers faced by students; lower means fewer barriers.
How do Mt Roskill Grammar and Ormiston Senior College rank in Auckland?
Mt Roskill Grammar is 53rd of 101 and Ormiston Senior College is 45th of 101 among secondary (year 9-15) schools in Auckland on the 2026 Success Index (NZ).