St Mark's College
Updated Oct 2026 · ACARA 2025Port Pirie, South Australia 5540 · Port Pirie LGA
#101 of 145 combined schools in SA
#936 of 1,259 nationally
About St Mark's College
St Mark's College is a catholic combined (K–12) school located in Port Pirie, South Australia (5540), within the Port Pirie local government area. It caters for students from R to 12 and in 2025 enrolled 945 students (476 girls and 469 boys). The school is affiliated with Catholic Education South Australia.
St Mark's College has an ICSEA value of 1002, indicating a socio-educational profile close to the national average of 1000. That places it in the 48th percentile of Australian schools. 10% of students come from the top socio-educational quarter and 29% from the bottom quarter.
The school employs 81 teachers (66.8 full-time equivalent) and 64 non-teaching staff, giving a student-to-teacher ratio of about 14.1 to 1. Enrolments have grown by 5% over the past five years.
On the Success Index, St Mark's College scores 36.1 out of 100, placing it in the lower 50% of combined schools nationally and 101st of 145 combined schools in SA (2nd of 2 in the Port Pirie area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1002
- Students in the top advantage quarter (15%)10% of students
- Teacher resourcing (students per teacher) (15%)14.1 students per teacher
- Enrolment growth vs local area (5 years) (10%)+5% enrolments since 2020
- ICSEA trend (5 years) (10%)-17 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How St Mark's College's 945 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Mark's College have changed over the past decade.
Free academic assessment
Is your child on track at St Mark's College?
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Schools near St Mark's College
Closest schools by straight-line distance, with their Success Index.
Risdon Park Primary School
Port Pirie · Government primary · R-6
300 students · ICSEA 944 · 458 m away
Airdale Primary School
Port Pirie · Government primary · R-6
119 students · ICSEA 783 · 1.5 km away
Mid North Christian College
Port Pirie · Independent combined · R-12
203 students · ICSEA 998 · 1.5 km away
Solomontown Primary School
Port Pirie · Government primary · U, R-6
183 students · ICSEA 881 · 2.3 km away
John Pirie Secondary School
Port Pirie · Government high school · U, 7-12
691 students · ICSEA 894 · 2.6 km away
Port Pirie West Primary School
Port Pirie · Government primary · R-6
201 students · ICSEA 873 · 2.7 km away
Mid North Education Centre
Port Pirie · Government special · U
17 students · ICSEA 873 · 3.5 km away
Napperby Primary School
Napperby · Government primary · R-6
57 students · ICSEA 920 · 12 km away
Similar schools
Catholic combined schools in SA with a comparable ICSEA.
Xavier College
Gawler Belt · Catholic combined · R-12
2,532 students · ICSEA 1001
Mount Carmel College
Rosewater · Catholic combined · R-12
1,204 students · ICSEA 1008
Caritas College
Port Augusta West · Catholic combined · R-12
541 students · ICSEA 995
St Joseph's School
Port Lincoln · Catholic combined · R-12
829 students · ICSEA 1015
Cardijn College
Noarlunga Downs · Catholic combined · R-12
2,247 students · ICSEA 1019
Samaritan College
Whyalla · Catholic combined · R-12
881 students · ICSEA 979
Frequently asked questions
Is St Mark's College a public or private school?
St Mark's College is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Education South Australia.
What year levels does St Mark's College offer?
St Mark's College offers R to 12. It is classified by ACARA as a combined school.
How many students attend St Mark's College?
In 2025, St Mark's College had 945 enrolled students (476 girls, 469 boys), a change of 5% over five years.
What is the ICSEA of St Mark's College?
St Mark's College has an ICSEA (Index of Community Socio-Educational Advantage) of 1002. The national average is 1000, so this indicates a socio-educational profile close to the national average of 1000. ICSEA reflects the school community, not teaching quality.
How does St Mark's College rank in SA?
St Mark's College ranks 101st of 145 combined schools in South Australia on the Success Index (36.1/100), and 936th of 1,259 nationally.
What is the student-to-teacher ratio at St Mark's College?
St Mark's College has about 14.1 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Mark's College?
In 2025, St Mark's College had 83 students in Year 7 and 83 in Year 12.
Is St Mark's College co-ed?
Yes. St Mark's College is a co-educational school enrolling both girls and boys.
What other schools are near St Mark's College?
There are 8 other schools within 15 km of St Mark's College in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near St Mark's College?
The closest Success Tutoring centre is Success Tutoring Windsor Gardens, about 194 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.