When it’s time to choose a high school, parents and students alike can benefit from exploring the available options before committing to a specific school. Exploring the best schools in Adelaide is certainly an involved and intricate operation!
There are several important factors to consider when looking at schools. Typically, these are the most important aspects that students and parents evaluate:
- Cost
- Location
- Performance
- Overall fit (culture and values)
Get started in your search for the best high school in South Australia near Adelaide with this guide!
Top Schools in Adelaide
One thing to note about this guide and all the guides about the best schools across Australia is that there is a lot of incomplete and even contradictory information out there.
Some ranking sites tout high Australian Tertiary Admissions Rating (ATAR) achievements; the percentage of students who ranked at 95% or higher, for example. Others look only at Maths and English exam scores to decide which schools are the best; they don't consider ATAR percentages. Many schools don’t even disclose this information (at least, not in a way where we can find it!).
The lack of standardised data for schools across Australia is a stumbling block for creating any ranked list. With these gaps in data acknowledged, we’ve put together a formidable Adelaide high school ranking:
| Rank | School | Sector | Location | Total Enrolments (2023) | % of Students Who Achieved ATAR Rank ≥90 (2022) |
|---|---|---|---|---|---|
| 1 | Glenunga International High School | Public | Glenunga | 2282 | 41.2 |
| 2 | Marryatville High School | Public | Marryatville | 1688 | 28.3 |
| 3 | Mitcham Girls High School | Public | Kingswood | 759 | 23 |
| 4 | Adelaide High School | Public | Adelaide | 1833 | unknown |
| 5 | Adelaide Botanic High School | Public | Adelaide | 1151 | 22 |
| 6 | The Heights School | Public | Modbury Heights | 1774 | unknown |
| 7 | Unley High School | Public | Netherby | 1562 | 15.6 |
| 8 | Open Access College | Public | Marden | 4509 | unknown |
| 9 | Brighton Secondary School | Public | North Brighton | 1680 | unknown |
| 10 | Norwood International High School | Public | Magill | 1646 | unknown |
| 1 | Pembroke School | Private | Kensington Park | 1696 | unknown |
| 2 | St Peter's Collegiate Girls School | Private | Stonyfell | 825 | >46 |
| 3 | St Peter's College | Private | St Peters | 1532 | 50.6 |
| 4 | Emmaus Christian College | Private | South Plympton | 994 | 34 |
| 5 | Saint Ignatius College | Private | Athelstone | 1366 | 50 |
| 6 | Wilderness School | Private | Medindie | 858 | 68 |
| 7 | Southern Montessori School | Private | O'Sullivan Beach | 211 | unknown |
| 8 | St Dominic's Priory College | Private | North Adelaide | 662 | 37 |
| 9 | Heritage College Incorporated | Private | Oakden | 412 | unknown |
| 10 | Prince Alfred College | Private | Kent Town | 1159 | 43 |
This table presents the best public and private/independent schools in Adelaide, based on their exam scores and overall quality of education. However, these lists can’t portray anything about the schools themselves like the student culture or learning experience.
Campus Culture
Research more about the school’s values and atmosphere, like if they utilise a religion-based curriculum or not, to be sure you match. Students typically benefit from a student body that reports high student satisfaction!
Curriculum & Learning Options
These days, there are many options for types of schools and teaching methodologies. You may want a school that adheres to traditional methods, or maybe you want to explore teaching like Montessori.
It may also be in need of a school that caters to exceptional needs like 'gifted and talented' learning programs. Check out the best schools in Melbourne for the high school offerings in Victoria.

- students and parent might have a hard time finding the right school for their needs without proper information. Photo by Victoria Romulo on Unsplash
ATAR & NAPLAN
When focusing solely on data, selecting a school with a high Australian Tertiary Admission Ranking (ATAR) can be a good idea. This ranking reflects a student’s academic performance relative to peers of the same age who are enrolled in similar classes. It is applicable nationwide and considers specific testing from each state; for instance, in Western Australia, it relies on data from the Western Australian Certificate of Education (WACE) exams.
The National Assessment Program – Literacy and Numeracy (NAPLAN) is a standardized exam administered across the country for students in years 3, 5, 7, and 9. It assesses the growth and progress of students at each school, ensuring they are learning the required material.
Recently, NAPLAN's grading system was revised, allowing for comparisons of scores from 2017 to 2022 and from 2023 onward. However, scores from before 2023 cannot be compared with those from 2023 and later.
As we explore the best schools in Adelaide, we’ll briefly look at academics and more. Just as in Brisbane-area high schools, there are many facets that constitute the high school experience.
The Best Public High Schools in Adelaide
There are about 125 government high schools in South Australia, so there are a lot of options to choose from. However, obviously, you must choose a school that is close to your home!
While government schools may have less funding and more students enrolled, you can still receive a high-quaity education at most government schools. Your experience also depends heavily on your unique learning style and interpersonal relationships!
If you want to check the best schools in Canberra, we also have a guide for that!
Here’s an overview of the top public high schools in Adelaide.

- School rankings don't always prove that a school is the best for you. Photo by Getty via Unsplash
Glenunga International High School
16 students scored a rank of 99 or above and one student achieved a perfect ATAR of 99.95
2023 NAPLAN Scores:
Year 7: Above Average
Year 9: Above Average
This international school claimed the site of a former mining and industry school, opening its door in 1903. It went through several changes, once even calling itself Adelaide Technical High School. It became Glenunga High School in 1974, after moving to its current location.
Today, Glenunga maintains a consistent record of academic excellence. It earned a 100 State Overall Score and top marks in English and Maths performance.
The school provides a variety of educational programs, such as the International Baccalaureate, designed to meet the diverse interests and skills of its students. It prioritizes developing critical thinking and a sense of global responsibility while maintaining a nurturing atmosphere for learning. Additionally, the school features numerous extracurricular activities that encourage students to grow personally and connect with the community.
Marryatville High School
Of 237 SACE completers, 91% obtained an ATAR
2023 NAPLAN Scores:
Year 7: Close to Average
Year 9: Close to Average
Marryatville High School, established in 1959, has a rich history of academic excellence and community involvement. It offers a comprehensive curriculum that includes a strong emphasis on the arts, sciences, and technology. The school is known for its innovative programs, such as the Special Interest Music Program, which attracts talented students from across the region.
Beyond academics, Marryatville High promotes a range of extracurricular activities, allowing students to explore their interests and develop new skills. This holistic approach to education not only enhances academic performance but also nurtures well-rounded individuals ready to contribute positively to society. The school’s commitment to excellence continues to make it a respected institution in South Australia.
Mitcham Girls High School
46% of students obtained an ATAR of 95+
2023 NAPLAN Scores:
Year 7: Close to Average
Year 9: Close to Average
Mitcham Girls High School, founded in 1961, has built a solid reputation for academic achievement and personal growth. The school offers a diverse curriculum that includes a strong focus on STEM, humanities, and the arts, catering to a wide range of student interests.
Over the years, Mitcham has consistently performed well in state assessments, showcasing the dedication of its students and teachers. The school emphasizes a supportive environment, encouraging girls to develop confidence and leadership skills. With various extracurricular activities, Mitcham Girls High fosters a well-rounded education, preparing students for future challenges and opportunities.
The Best Private High Schools in Adelaide
There are about 134 non-government and independent high schools in South Australia.
The Adelaide private schools ranked more consistently high on their State Overall scores than public schools did. Pembroke and St Peter's Collegiate both earned 100; none of our top 10 private schools rank below 98. By contrast, Glenunga is the only public school with a State Overall score of 100.
You can find information about New South Wales schools in our other guide as well!
Numerous private independent schools enhance students' learning experiences through a distinct ethos. For example, Catholic schools and those affiliated with Christian and Anglican denominations include Religious and Values Education (RaVE) in their programs. Other institutions might emphasize specific areas such as the arts, athletics, languages, or STEM—Science, Technology, Engineering, and Mathematics. In addition to these focused subjects, all independent and private schools cover the eight nationally recognized key subjects.
Here is an overview of the top private high schools in Adelaide.

- Besides rowing and cricket, Adelaide High School is known for its fierce volleyball competitions. Photo by Vince Fleming on Unsplash
Pembroke School
12 students achieved an ATAR of 99 and above, placing them in the top 1% of the state
2023 NAPLAN Scores:
Year 7: Close to Average
Year 9: Close to Average
Pembroke School, founded in 1979, has a strong reputation for promoting both academic success and personal growth. The curriculum is diverse, focusing on areas like the arts, sciences, and languages, which allows students to pursue their interests.
Over the years, the school has consistently delivered excellent academic results, thanks to the hard work of students and teachers alike. The environment is supportive, helping girls develop confidence and leadership qualities. With a variety of extracurricular options, Pembroke aims to create well-rounded individuals prepared for whatever lies ahead.
St Peter's Collegiate Girls School
The median ATAR was 94.60
2023 NAPLAN Scores:
Year 7: Close to Average
Year 9: Close to Average
Over the years, St Peter's Collegiate has earned a reputation for strong academic performance, with many students achieving high results in state assessments. The school encourages a supportive community where girls can thrive, build confidence, and prepare for their future endeavors.
The school offers a dynamic curriculum that blends academics with arts, sports, and personal development. Students can explore a variety of subjects, from science and technology to humanities and languages.
St Peter's College
13% of students achieved an ATAR of 99+, placing them in the top 1% of the state
2023 NAPLAN Scores:
Year 7: Close to Average
Year 9: Close to Average
The school’s impressive academic performance speaks volumes, with students regularly achieving outstanding results in state assessments. Yet, it’s not just about grades; the college cultivates a vibrant community where personal growth and character development thrive. Students are encouraged to pursue their interests passionately, making their time at St Peter's both enriching and memorable.
Discovering and choosing which school you want to attend, whether you’re in Adelaide or looking for the best high schools in Perth, is no small task. Take what you find from ranking sites with a grain of salt and be sure to more thoroughly investigate the schools you are considering.
No matter which school you choose, what matters most is the student’s willingness to learn and grow.
This article has delivered a lot of statistics. So be sure to consider this information and to use the school holidays as a time to figure out what is the best choice for you.










Coming from India and settling in Adelaide. Pls suggest the good school for teen boy.