What are South Australia's top performing schools 2023?

In 2023 more than 15,560 students completed their SACE. This included 3790 country students, an increase from 3660 in 2022. There was also an increase in indigenous students who completed their SACE from 347 last year to 421. Subsequently, 2023 also observed a seven per cent increase on last year's ATAR results showing continued improvement year by year.

This year five students achieved the perfect ATAR of 99.95, including three boys and two girls.

Let's take a deep dive into how South Australia's top-ranked schools performed.

St Peter’s College

• Two students achieved the Top ATAR of 99.95.
• 13% of St Peter’s College students achieved an ATAR of 99 and above, placing them in the top 1% of the state.
• 30% of students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 43% of students achieved an ATAR of 90 and above, placing them in the top 10% of the state.
• 113 merits were achieved by 56 students for a perfect score in a subject.

Wilderness School

• Two students achieved the Top ATAR of 99.95.
• 20% of students achieved an ATAR of 99 and above, placing them in the top 1% of the state.
• 44% of students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 68% of students achieved an ATAR of 90 and above, placing them in the top 10% of the state.
• 81 merits were achieved by the cohort.
• The median ATAR was 93.6.

SACE/ NTCET: Understanding South Australia and the Northern Territory’s Year 12 ATAR system (Updated 2025) | KIS Academics

Not sure how the SACE/NTCET works? How does that lead to an ATAR? Learn about South Australia and the Northern Territory’s shared Year 12 ATAR system here.

KIS Academics BlogManoj Arachige

Pembroke School

• One student achieved the Top ATAR of 99.95.
• 12 students achieved an ATAR of 99 and above, placing them in the top 1% of the state.
• 42 students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 77 students achieved an ATAR of 90 and above, placing them in the top 10% of the state.
• 49 Merits were achieved by the cohort.

Walford Anglican School

• The Top ATAR achieved was 99.6.
• 6% of students achieved an ATAR of 99 and above, placing them in the top 1% of the state.
• 28% of students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 48% of students achieved an ATAR of 90 and above, placing them in the top 10% of the state.
• 24 merits were achieved by the cohort.

Saint Ignatius College

• The Top ATAR achieved was 99.9.
• 10 students (6.9% of the cohort) achieved an ATAR of 99 and above, placing them in the top 1% of the State.
• 48 students (33.3% of the cohort) achieved an ATAR of 95 or above, placing them in the top 5% of the State.
• 71 students (49.3% of the cohort) achieved an ATAR of 90 or above, placing them in the top 10% of the State.
• 48 merits were achieved by the cohort.

SACE: The Ultimate Guide to Choosing the Right Subjects (Updated 2025) | KIS Academics

So it’s approaching that time when you have to submit your subject selection for next year - what SACE subject is right for you? What should you choice be based off of? And what if you hate it? We talk all about it here!

KIS Academics BlogManoj Arachige

St Peter's College Girls

• The Top ATAR achieved was 99.7.
• 44% of students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 66% of students achieved an ATAR of 90 or above, placing them in the top 10% of the State.
• 27 merits were achieved by the cohort.
• The median ATAR was 94.60.

Seymour College

• The Top ATAR achieved was 99.8.
• 24 students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 55% of students achieved an ATAR of 90 and above, placing them in the top 10% of the State.

SACE: Adjustment Factors and how they Work (updated 2025) | KIS Academics

SACE bonus points are super important! These bonus points give your adjusted ATAR a boost to push your ranking up when applying for tertiary study through SATAC.

KIS Academics BlogManoj Arachige

Scotch College

• 7 students achieved an ATAR of 99 and above, placing them in the top 1% of the state.
• 35 students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 63 students (42% of the cohort) achieved an ATAR of 90 and above, placing them in the top 10% of the State.
• 32 merits were achieved by the cohort.

Brighton Secondary School

• The top ATAR was 98.15.
• 33 students achieved an ATAR of 90 or above.
• 42 A+ level grades, 17 of them with merit achievement.

Loreto College

• The Top ATAR achieved was 99.5.
• 12% of students achieved an ATAR of 98 and above, placing them in the top 2% of the state.
• 28% of students achieved an ATAR of 95 and above, placing them in the top 5% of the state.
• 48% of students achieved an ATAR of 90 and above, placing them in the top 10% of the state.

What are the SACE External Examinations like?

For many SACE subjects, exams are used to test your knowledge of all the information you have learned in the past year. SACE exams can be in multiple formats, whether that be online or on paper.

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Conclusion

Want more personalised guidance from past SACE high achievers? Check out our lineup of expert tutors with an average ATAR of 99.50 to unlock your academic potential.

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