Marian College vs St Thomas of Canterbury College
A head-to-head comparison of two schools in Canterbury, New Zealand, 7.0 km apart, using official New Zealand 2026 data. The better value in each row is highlighted.
Marian College
Northcote-Christchurch · State integrated secondary (year 9-15) · Years 9–13
427 students
St Thomas of Canterbury College
Sockburn · State integrated secondary (year 7-15) · Years 7–13
686 students
| Measure | Marian College Northcote-Christchurch, Canterbury | St Thomas of Canterbury College Sockburn, Canterbury |
|---|---|---|
| Success Index (NZ) | 75 Top 25% | 77 Top 25% |
| Region rank | #13 of 57 | #9 of 57 |
| National rank | #77 of 486 | #61 of 486 |
| Sector | State integrated | State integrated |
| Type | Secondary (Year 9-15) | Secondary (Year 7-15) |
| Year range | Years 9–13 | Years 7–13 |
| Students | 427 | 686 |
| Equity Index (EQI) | 426 | 430 |
| Total roll | 427 | 686 |
| Roll growth (5 yrs) | 4% | 6.4% |
| Leavers with NCEA Level 2+ | 91.7% | 95.9% |
| Leavers with NCEA Level 3+ | – | – |
| Leavers with University Entrance | 75% | 76% |
| Māori students | 14.3% | 19% |
| Pacific students | 10.5% | 20.6% |
| International students | 0.5% | 2.6% |
| suburb or town | Northcote-Christchurch | Sockburn |
| region | Canterbury | Canterbury |
| Website | www.mariancollege.school.nz | www.stc.school.nz |
The verdict
- •St Thomas of Canterbury College scores higher on the Success Index (NZ) (77.3 vs 74.7).
- •Marian College does better on equity index (fewer barriers is higher) (426 vs 430).
- •St Thomas of Canterbury College does better on roll size (686 vs 427).
- •St Thomas of Canterbury College does better on roll growth (5 years) (6.4% vs 4%).
- •St Thomas of Canterbury College does better on school leavers with ncea level 2+ (95.9% vs 91.7%).
- •St Thomas of Canterbury College is the larger school with 686 students compared with 427.
- •Marian College is girls and St Thomas of Canterbury College is boys.
The Success Index (NZ) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Marian College better than St Thomas of Canterbury College?
On the Success Index (NZ), St Thomas of Canterbury College ranks higher (77.3 vs 74.7 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 Marian College and St Thomas of Canterbury College?
About 7.0 km in a straight line, between Northcote-Christchurch and Sockburn in Canterbury.
Which has the better Equity Index (EQI)?
Marian College: 426. St Thomas of Canterbury College: 430. Ministry of Education measure of socio-economic barriers faced by students; lower means fewer barriers.
How do Marian College and St Thomas of Canterbury College rank in Canterbury?
Marian College is 13th of 57 and St Thomas of Canterbury College is 9th of 57 among secondary (year 9-15) schools in Canterbury on the 2026 Success Index (NZ).