Last updated October 2026
St Mary’s College is a state-integrated, girls’ secondary school for Years 9 to 13 at 15 Guildford Terrace, Wellington CBD, Wellington. It had 556 students on its roll at 1 September 2026.
It has no home zone, so any student can apply. Its site describes a Catholic girls’ college in the Mercy tradition, with a learning support department, pathways and careers advice, a defensive driving course, guidance counselling, a school nurse and a house system. International students get help choosing subjects suited to them and are encouraged to join arts, culture and sport.
At a glance
- Principal
- Sarah Parkinson
- Address
- 15 Guildford Terrace, Wellington CBD, Wellington
- Phone
- 04 473 5554
Home zone
No home zone: any student can apply to enrol. If more students apply than there are places, the school decides how places are offered.
NCEA results
School leavers with NCEA Level 2 or above, compared with all New Zealand school leavers.
This school New Zealand
School leavers are students who left school that year, whatever year level they left from.
Who goes here
Share of the 556 students who identify with each group. Students can name more than one, so these add up to more than 100%.
4 international students
MELAA: Middle Eastern, Latin American and African.
What ERO found
The Education Review Office’s latest report on the school is a School Report from August 2026. ERO rated the school Excelling for achievement, progress, literacy, numeracy, engagement and belonging, and equity: almost all students achieve NCEA Levels 1, 2 and 3 and meet the NCEA literacy and numeracy requirements, a large majority gain University Entrance, and Māori and Pacific students achieve strongly.
Leadership, teaching, curriculum, assessment and governance were rated Doing well, and ERO found that the school takes reasonable steps to keep students safe.
Three areas were rated Working towards: attendance, where a small majority of students attend regularly though this is improving; support for students with additional needs; and planning for school improvement. ERO’s next steps are to lift attendance, set up systematic internal evaluation, and strengthen adaptive teaching, including for English language learners.
ERO also found that identity checks on new staff had not been fully carried out and recorded, which the board has since fixed, and said reporting to the board on the international student programme needs strengthening.
Read the ERO reports for St Mary’s College (Wellington)
Enrolling
As a state-integrated Catholic school, St Mary’s College (Wellington) gives preference of enrolment to Catholic families, for example where the student is baptised or being prepared for baptism, and preference applicants need a certificate signed by their parish priest. Non-preference students are accepted only after all eligible preference students, within a limit on numbers, and attendance dues are compulsory.
Families apply online. The school publishes its application deadline, any ballot date and when families will hear back on its enrolment page each year, and late preference applications are held until a place comes up.
Schools nearby
In Thorndon Wellington
St Mary's College (Wellington) is in Thorndon Wellington. Our suburb guide covers what it is like to live there, with parks, places and local businesses.
Questions parents ask
Is St Mary's College (Wellington) zoned?
No. It has no home zone, so any student can apply to enrol.
What years does it teach?
Years 9 to 13.
How many students go there?
556 at 1 Sep 2026.
Does it ask for donations?
It may. It is not in the donation scheme, so it can ask families for donations.
What is its Equity Index?
429. The Ministry of Education’s Equity Index estimates the socio-economic barriers a school’s students face, from 344 (fewest) to 569 (most). It is used to share out funding, not as a measure of quality.
Is it a single-sex school?
Yes. It takes girls only.
How did its school leavers do in NCEA?
In 2025, 93.3% of its school leavers had NCEA Level 2 or above, compared with 77.8% of all New Zealand school leavers.
Updated automatically when the Ministry publishes new data.
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Sources and data notes 1
- School facts: School details and roll: Ministry of Education school directory, 28 Oct 2026 (CC BY 4.0). NCEA results, roll history and stand-downs: Education Counts, school leavers 2023 to 2025, stand-downs 2025, rolls 2021 to 2025 (CC BY 4.0).