St Mary's College
St Mary's College is a Catholic combined school in Adelaide, SA offering R-12. With an ICSEA score of 1073, it sits in the 76th percentile nationally and is above the Australian average of 1,000. The school has 659 enrolled students, with approximately 9 students per teacher. 1% of students identify as Aboriginal or Torres Strait Islander, and 15% have a language background other than English.
Adelaide SA 5000. Source: ACARA School Profile 2025.
Valid: 2025 school year · Source: ACARA School Profile 2025
How St Mary's College compares
By ICSEA, St Mary's College ranks 33rd of the 169 combined schools in SA that report one, counting from the highest. Of the 21 combined schools within 5 km, it has the 12th-highest ICSEA and the 10th-largest enrolment. The nearest school is Adelaide High School, a government secondary school 0.3 km away.
Ranks are calculated by GDP.com.au from ACARA 2025 school profile data. Distances are straight-line from the school's ACARA location. ICSEA describes students' family backgrounds; ACARA notes it is not a rating of the school or its teaching.
ICSEA against the national average
ICSEA (Index of Community Socio-Educational Advantage) measures the socio-educational background of a school's student community. The Australian average is 1,000. St Mary's College scores 1073, above average.
Enrolment and location
St Mary's College is a Catholic school. Catholic and independent schools set their own enrolment policies rather than using government school zones, so contact the school about enrolment.
About Adelaide
St Mary's College is located in Adelaide, SA, a suburb with a median household income of $1,365/wk and median rent of $400/wk. Population: 18,202.
Valid: Census 2021 · Source: ABS
Adelaide suburb profileSchools near St Mary's College
| School | Distance | ICSEA | vs St Mary's College | Students |
|---|---|---|---|---|
| Adelaide High SchoolGovernment Secondary · Adelaide | 0.3 km | 1094 | 21 higher | 1,821 |
| Temple Christian CollegeIndependent Secondary · Mile End | 1.1 km | 1043 | 30 lower | 1,151 |
| St Aloysius CollegeCatholic Combined · Adelaide | 1.3 km | 1081 | 8 higher | 1,091 |
| Specialised Assistance School For Youth (SASY)Independent Secondary · Adelaide | 1.3 km | 1026 | 47 lower | 205 |
| Pulteney Grammar SchoolIndependent Combined · Adelaide | 1.5 km | 1170 | 97 higher | 839 |
Frequently Asked Questions
Is St Mary's College a government school?
No, St Mary's College is a Catholic school, not a government school.
What year levels does St Mary's College offer?
St Mary's College offers R-12.
What is St Mary's College's ICSEA score?
St Mary's College has an ICSEA score of 1073, placing it in the 76th percentile nationally. The Australian average is 1,000.
How many students attend St Mary's College?
St Mary's College has 659 enrolled students, with approximately 9 students per teacher.
What schools are near St Mary's College?
The nearest schools to St Mary's College are Adelaide High School (0.3 km), Sports College South Australia - Adelaide Comets (0.5 km), Sturt Street Community School (0.6 km).
Where is St Mary's College located?
St Mary's College is located in Adelaide, SA 5000. Visit the school website at http://www.stmarys.sa.edu.au.