Concordia College vs Seymour College
Concordia College (Highgate) and Seymour College (Glen Osmond) are both independent schools in Adelaide. Concordia College is co-educational; Seymour College is a girls’ school. Both teach R-12. Only Seymour College takes boarders. Concordia College has 1,312 students and Seymour College has 715 (ACARA 2025). They are about 2.6 km apart in a straight line.
Photos: Concordia College (school website) · Seymour College (school website)
See both schools’ full fees, ATAR results and cost to Year 12
Every year level’s fees from each school’s own schedule, the results each school publishes, and the total cost to Year 12, side by side.
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Key numbers
Students, ICSEA, students per teacher and girls/boys: ACARA My School 2025 (students per teacher is total enrolments divided by full-time-equivalent teaching staff; it isn’t class size).
Fees and results
Side by side
| Fact | Concordia College | Seymour College |
|---|---|---|
| Suburb | Highgate | Glen Osmond |
| Region | Adelaide - Central and Hills | Adelaide - Central and Hills |
| Sector | Independent | Independent |
| Students | Co-ed | Girls |
| Year levels | R-12 | R-12 |
| Religion | Lutheran | Uniting Church |
| Boarding | No | Yes |
| Senior years | SACE + IB (IB World School) | SACE |
| Facilities and sport (school site) | Gym, Oval, Indoor sports centre, Music centre, Early learning centre, Library, Soccer, Netball, Cricket, Basketball, Swimming, Athletics, Tennis, Hockey, Volleyball | Swimming pool, Gym, Oval, Indoor sports centre, Theatre / performing arts centre, Boarding, Early learning centre, Library, Science / STEM labs, Australian rules football, Soccer, Netball, Cricket, Basketball, Rowing, Swimming, Athletics, Tennis, Hockey, Volleyball, Badminton, Water polo |
| Distance apart | About 2.6 km in a straight line | |
Facts from ACARA (2025) and each school’s own website.
Which suits whom
- Families wanting a co-educational school: Concordia College is co-ed.
- Families wanting a single-sex school for a daughter: Seymour College takes girls only.
- Families needing boarding: only Seymour College takes boarders.
- Families choosing by faith: Concordia College is Lutheran; Seymour College is Uniting Church.
- Size: Concordia College is the larger school, with 597 more students.
- Smaller ratio: Seymour College has fewer students per teacher (10.8 against 12.2, ACARA 2025).
- Listed by Concordia College but not Seymour College: Music centre.
- Listed by Seymour College but not Concordia College: Swimming pool, Theatre / performing arts centre, Boarding, Science / STEM labs, Australian rules football, Rowing, Badminton and Water polo.
History
Concordia College
Concordia’s roots are in country Victoria. In 1890 Pastor W. F. Peters re-established a small private school at Murtoa as a Lutheran boys’ college, partly to train future pastors and teachers.
Source: en.wikipedia.org
Seymour College
Seymour College opened in 1922 as Presbyterian Girls’ College, with about 100 girls across five year levels and the Reverend Dr Herbert Postle as its first principal. Its home at Glen Osmond centres on Barr Smith House, a mansion built in 1861 as Wootton Lea, which over the years has housed boarders, art classes, swimming lessons and principals.
Source: seymour.sa.edu.au
Questions parents ask
What is the difference between Concordia College and Seymour College?
Concordia College is co-educational; Seymour College is a girls’ school. Both teach R-12. Only Seymour College takes boarders.
Is Concordia College or Seymour College co-ed?
Concordia College is co-educational and Seymour College is a girls’ school.
Which is bigger, Concordia College or Seymour College?
Concordia College is bigger: 1,312 students against 715 (ACARA 2025).
How many students per teacher do Concordia College and Seymour College have?
Concordia College has 12.2 students per teacher and Seymour College has 10.8 (ACARA My School 2025: total enrolments divided by full-time-equivalent teaching staff).
Which is older, Concordia College or Seymour College?
Concordia College is older. Concordia College was founded in 1890 and Seymour College in 1922.
Do Concordia College and Seymour College take boarders?
Only Seymour College takes boarders.
How far apart are Concordia College and Seymour College?
About 2.6 km in a straight line: Concordia College is in Highgate and Seymour College is in Glen Osmond.
How do Concordia College and Seymour College fees compare?
Each school publishes its own fee schedule. Members see both schedules year by year, the results each school reports and the total cost to Year 12. Always confirm current fees with the school.
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School profiles
Get the full picture: fees, ATAR results and cost to Year 12
Every year level’s fees from each school’s own schedule, the results each school publishes, and the total cost to Year 12, side by side.
Compare these schools in full →A$9.99 a year, cancel anytimeSecure payment by Stripe
Source and date
Enrolment, ICSEA, students per teacher and girls/boys: ACARA My School 2025. Other facts: each school’s website, checked 21 October 2026. Distance is a straight line between the schools’ map points, not travel distance. Check details with the schools before deciding. Methodology