Concordia College
Updated Oct 2026 · ACARA 2025Highgate, South Australia 5063 · Unley LGA
#14 of 145 combined schools in SA
#195 of 1,259 nationally
About Concordia College
Concordia College is an independent combined (K–12) school located in Highgate, South Australia (5063), within the Unley local government area. It caters for students from R to 12 and in 2025 enrolled 1,312 students (646 girls and 666 boys). The school is affiliated with Lutheran Education SA, NT & WA.
Concordia College has an ICSEA value of 1140, indicating very high socio-educational advantage. That places it in the 93rd percentile of Australian schools. 56% of students come from the top socio-educational quarter and 2% from the bottom quarter.
The school employs 122 teachers (107.2 full-time equivalent) and 87 non-teaching staff, giving a student-to-teacher ratio of about 12.2 to 1. Enrolments have grown by 6% over the past five years.
On the Success Index, Concordia College scores 73.9 out of 100, placing it in the top 25% of combined schools nationally and 14th of 145 combined schools in SA (2nd of 2 in the Unley area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1140
- Students in the top advantage quarter (15%)56% of students
- Teacher resourcing (students per teacher) (15%)12.2 students per teacher
- Enrolment growth vs local area (5 years) (10%)+6% enrolments since 2020
- ICSEA trend (5 years) (10%)-1 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 Concordia College's 1,312 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Concordia College have changed over the past decade.
Free academic assessment
Is your child on track at Concordia College?
Rankings tell you about a school community. A free Success Tutoring assessment tells you about your child: exactly where they are in English and Maths, where the gaps are, and a plan to close them. Small-group, Australian-curriculum tutoring with no lock-in contracts.
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Schools near Concordia College
Closest schools by straight-line distance, with their Success Index.
Highgate School
Highgate · Government primary · U, R-6
616 students · ICSEA 1150 · 522 m away
Sunrise Christian School Fullarton
Fullarton · Independent primary · R-6
175 students · ICSEA 1133 · 673 m away
Walford Anglican School for Girls
Hyde Park · Independent combined · R-12
400 students · ICSEA 1162 · 966 m away
Unley Primary School
Unley · Government primary · R-6
470 students · ICSEA 1154 · 1.0 km away
Urrbrae Agricultural High School
Netherby · Government high school · 7-12
1,102 students · ICSEA 1074 · 1.0 km away
Unley High School
Netherby · Government high school · 7-12
1,547 students · ICSEA 1084 · 1.2 km away
St Joseph's School
Kingswood · Catholic primary · R-6
256 students · ICSEA 1135 · 1.3 km away
Mitcham Girls High School
Kingswood · Government high school · 7-12
754 students · ICSEA 1083 · 1.3 km away
Saint Spyridon College
Unley · Independent primary · R-6
39 students · ICSEA 1081 · 1.4 km away
Mitcham Primary School
Kingswood · Government primary · R-6
629 students · ICSEA 1121 · 1.5 km away
Similar schools
Independent combined schools in SA with a comparable ICSEA.
Westminster School
Marion · Independent combined · R-12
1,401 students · ICSEA 1139
St John's Grammar School
Belair · Independent combined · R-12
1,009 students · ICSEA 1141
Prince Alfred College
Kent Town · Independent combined · R-12
1,127 students · ICSEA 1143
Emmaus Christian College
South Plympton · Independent combined · R-12
1,084 students · ICSEA 1137
Scotch College
Torrens Park · Independent combined · R-12
1,213 students · ICSEA 1146
Seymour College
Glen Osmond · Independent combined · R-12
715 students · ICSEA 1150
Frequently asked questions
Is Concordia College a public or private school?
Concordia College is a Independent school, which makes it a non-government (private) school affiliated with Lutheran Education SA, NT & WA.
What year levels does Concordia College offer?
Concordia College offers R to 12. It is classified by ACARA as a combined school.
How many students attend Concordia College?
In 2025, Concordia College had 1,312 enrolled students (646 girls, 666 boys), a change of 6% over five years.
What is the ICSEA of Concordia College?
Concordia College has an ICSEA (Index of Community Socio-Educational Advantage) of 1140. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Concordia College rank in SA?
Concordia College ranks 14th of 145 combined schools in South Australia on the Success Index (73.9/100), and 195th of 1,259 nationally.
What is the student-to-teacher ratio at Concordia College?
Concordia College has about 12.2 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Concordia College?
In 2025, Concordia College had 151 students in Year 7 and 142 in Year 12.
Is Concordia College co-ed?
Yes. Concordia College is a co-educational school enrolling both girls and boys.
What other schools are near Concordia College?
There are 10 other schools within 15 km of Concordia 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 Concordia College?
The closest Success Tutoring centre is Success Tutoring Windsor Gardens, about 11 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.