Cust School vs Diamond Harbour School
A head-to-head comparison of two full primary schools in Canterbury, New Zealand, 45 km apart, using official New Zealand 2026 data. The better value in each row is highlighted.
Cust School
Cust · State full primary · Years 1–8
138 students
Diamond Harbour School
Diamond Harbour · State full primary · Years 1–8
122 students
| Measure | Cust School Cust, Canterbury | Diamond Harbour School Diamond Harbour, Canterbury |
|---|---|---|
| Success Index (NZ) | 65 Top 50% | 65 Top 50% |
| Region rank | #73 of 187 | #74 of 187 |
| National rank | #492 of 1,559 | #502 of 1,559 |
| Sector | State | State |
| Type | Full Primary | Full Primary |
| Year range | Years 1–8 | Years 1–8 |
| Students | 138 | 122 |
| Equity Index (EQI) | 412 | 412 |
| Total roll | 138 | 122 |
| Roll growth (5 yrs) | -14.9% | -4.9% |
| Leavers with NCEA Level 2+ | – | – |
| Leavers with NCEA Level 3+ | – | – |
| Leavers with University Entrance | – | – |
| Māori students | 12.3% | 9% |
| Pacific students | 1.4% | 2.5% |
| International students | 0% | 0% |
| suburb or town | Cust | Diamond Harbour |
| region | Canterbury | Canterbury |
| Website | www.cust.school.nz | www.diamondharbour.school.nz |
The verdict
- •Both schools have almost identical Success Index (NZ) scores (65.2 vs 64.8).
- •Cust School does better on roll size (138 vs 122).
- •Diamond Harbour School does better on roll growth (5 years) (-4.9% vs -14.9%).
- •Cust School is the larger school with 138 students compared with 122.
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 Cust School better than Diamond Harbour School?
The two schools are very close on the Success Index (NZ). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Cust School and Diamond Harbour School?
About 45 km in a straight line, between Cust and Diamond Harbour in Canterbury.
Which has the better Equity Index (EQI)?
Cust School: 412. Diamond Harbour School: 412. Ministry of Education measure of socio-economic barriers faced by students; lower means fewer barriers.
How do Cust School and Diamond Harbour School rank in Canterbury?
Cust School is 73rd of 187 and Diamond Harbour School is 74th of 187 among full primary schools in Canterbury on the 2026 Success Index (NZ).