Top 100 public high schools in South Australia (2025)

Government schools offering secondary years. Ranked by the Success Index from official ACARA data; 100 schools shown out of all eligible public high schools in South Australia.

#	School	Sector	Success Index	ICSEA	Students	Students : teacher
1	Australian Science and Mathematics School Bedford Park · Secondary · 10-12	Government	81.1 Top 5%	1101	419	10.7
2	Glenunga International High School Glenunga · Secondary · 7-12	Government	80.9 Top 5%	1153	2,340	14.9
3	Marryatville High School Marryatville · Secondary · 7-12	Government	79.3 Top 10%	1120	1,759	15.0
4	Adelaide Botanic High School Adelaide · Secondary · 7-12	Government	75.1 Top 25%	1103	1,258	15.7
5	Norwood International High School Magill · Secondary · 7-12	Government	74.5 Top 25%	1090	1,667	15.4
6	Heathfield High School Heathfield · Secondary · 7-12	Government	73.0 Top 25%	1086	970	15.4
7	Adelaide High School Adelaide · Secondary · U, 7-12	Government	71.7 Top 25%	1094	1,821	14.3
8	Morialta Secondary College Rostrevor · Secondary · U, 7-10	Government	71.7 Top 25%	1075	570	13.1
9	Springbank Secondary College Pasadena · Secondary · U, 7-12	Government	69.2 Top 25%	1021	249	8.8
10	Unley High School Netherby · Secondary · 7-12	Government	68.2 Top 25%	1084	1,547	14.4
11	Brighton Secondary School North Brighton · Secondary · 7-12	Government	65.0 Top 50%	1071	1,737	15.5
12	Urrbrae Agricultural High School Netherby · Secondary · 7-12	Government	64.3 Top 50%	1074	1,102	13.7
13	Mitcham Girls High School Kingswood · Secondary · 7-12	Government	63.9 Top 50%	1083	754	13.9
14	Seaview High School Seacombe Heights · Secondary · U, 7-12	Government	61.3 Top 50%	1038	1,377	15.3
15	Blackwood High School Eden Hills · Secondary · 7-12	Government	59.5 Top 50%	1059	1,211	16.3
16	Henley High School Henley Beach · Secondary · U, 7-12	Government	57.4 Top 50%	1045	1,381	13.8
17	Aberfoyle Park High School Aberfoyle Park · Secondary · 7-12	Government	56.8 Top 50%	1039	906	13.1
18	The Heights School Modbury Heights · Combined · U, R-12	Government	56.4 Top 50%	1060	1,811	16.0
19	Adelaide Secondary School of English West Croydon · Secondary · U	Government	56.3 Top 50%	961	487	6.6
20	Findon High School Findon · Secondary · U, 7-12	Government	56.0 Top 50%	978	467	11.1
21	Mount Barker High School Mount Barker · Secondary · U, 7-12	Government	54.2 Top 50%	1010	1,061	14.4
22	Plympton International College Plympton · Combined · R-12	Government	53.3 Top 50%	1044	825	12.8
23	Marden Senior College Marden · Secondary · U, 11-12	Government	52.3 Top 50%	1041	496	14.4
24	Seaton High School Seaton · Secondary · U, 7-12	Government	49.1 Lower 50%	1001	917	12.6
25	Gladstone High School Gladstone · Secondary · 7-12	Government	46.9 Lower 50%	967	183	10.0
26	Hamilton Secondary College Mitchell Park · Secondary · U, 7-12	Government	46.2 Lower 50%	994	609	14.4
27	Underdale High School Underdale · Secondary · 7-12	Government	46.2 Lower 50%	1000	629	13.2
28	Birdwood High School Birdwood · Secondary · 7-12	Government	46.0 Lower 50%	996	555	13.2
29	Modbury High School Modbury · Secondary · U, 7-12	Government	45.5 Lower 50%	1005	926	13.9
30	Karcultaby Area School Karcultaby · Combined · R-12	Government	45.0 Lower 50%	998	83	8.1
31	Charles Campbell College Paradise · Combined · U, R-12	Government	44.8 Lower 50%	1018	1,188	13.2
32	Open Access College Marden · Combined · U, R-12	Government	44.7 Lower 50%	1017	4,028	10.8
33	Orroroo Area School Orroroo · Combined · R-12	Government	44.6 Lower 50%	991	144	9.6
34	Jamestown Community School Jamestown · Combined · R-12	Government	44.1 Lower 50%	998	251	14.4
35	Tintinara Area School Tintinara · Combined · R-12	Government	44.0 Lower 50%	1000	101	8.2
36	Golden Grove High School Golden Grove · Secondary · U, 7-12	Government	43.4 Lower 50%	1007	1,486	13.0
37	Valley View Secondary School Para Vista · Secondary · U, 7-12	Government	43.3 Lower 50%	963	596	12.5
38	Banksia Park International High School Banksia Park · Secondary · 7-12	Government	43.0 Lower 50%	1009	1,055	15.3
39	Kangaroo Inn Area School Kangaroo Inn · Combined · R-12	Government	42.7 Lower 50%	990	106	8.8
40	Lameroo Regional Community School Lameroo · Combined · R-12	Government	42.2 Lower 50%	999	196	10.9
41	Clare High School Clare · Secondary · U, 7-12	Government	42.0 Lower 50%	994	428	12.0
42	Woodville High School St Clair · Secondary · U, 7-12	Government	41.2 Lower 50%	973	1,170	13.4
43	Kangaroo Island Community Education Kingscote · Combined · R-12	Government	41.1 Lower 50%	998	710	12.3
44	Victor Harbor High School Victor Harbor · Secondary · U, 7-12	Government	41.1 Lower 50%	974	633	11.5
45	Para Hills High School Para Hills West · Secondary · U, 7-12	Government	41.0 Lower 50%	948	670	12.5
46	Roma Mitchell Secondary College Gepps Cross · Secondary · U, 7-12	Government	40.6 Lower 50%	971	1,638	13.0
47	Loxton High School Loxton · Secondary · 7-12	Government	40.4 Lower 50%	989	559	14.0
48	Tumby Bay Area School Tumby Bay · Combined · R-12	Government	40.4 Lower 50%	988	237	12.5
49	Wudinna Area School Wudinna · Combined · R-12	Government	40.3 Lower 50%	997	188	11.3
50	Kimba Area School Kimba · Combined · R-12	Government	40.0 Lower 50%	992	187	12.0
51	Willunga High School Willunga · Secondary · U, 7-12	Government	40.0 Lower 50%	994	693	14.6
52	Nuriootpa High School Nuriootpa · Secondary · U, 7-12	Government	39.5 Lower 50%	990	1,133	13.8
53	Bordertown High School Bordertown · Secondary · 7-12	Government	39.3 Lower 50%	969	307	12.5
54	Northern Adelaide Senior College Elizabeth · Secondary · U, 11-12	Government	39.3 Lower 50%	978	431	16.5
55	Kapunda High School Kapunda · Secondary · 7-12	Government	38.8 Lower 50%	972	594	13.0
56	Lucindale Area School Lucindale · Combined · R-12	Government	38.7 Lower 50%	982	197	12.0
57	Port Broughton Area School Port Broughton · Combined · R-12	Government	38.2 Lower 50%	980	152	11.3
58	Cleve Area School Cleve · Combined · R-12	Government	38.1 Lower 50%	988	324	12.2
59	Cowell Area School Cowell · Combined · R-12	Government	37.5 Lower 50%	969	169	10.8
60	Thebarton Senior College Torrensville · Secondary · U, 11-12	Government	37.1 Lower 50%	951	1,284	10.3
61	Mount Compass Area School Mount Compass · Combined · R-12	Government	36.8 Lower 50%	987	469	13.5
62	Eudunda Area School Eudunda · Combined · R-12	Government	36.6 Lower 50%	950	223	12.7
63	Cummins Area School Cummins · Combined · R-12	Government	36.5 Lower 50%	994	382	11.2
64	Waikerie High School Waikerie · Secondary · 7-12	Government	36.5 Lower 50%	962	301	12.9
65	Karoonda Area School Karoonda · Combined · R-12	Government	36.2 Lower 50%	961	145	9.3
66	Swan Reach Area School Swan Reach · Combined · R-12	Government	36.1 Lower 50%	940	86	9.1
67	Oakbank School Oakbank · Combined · R-12	Government	35.4 Lower 50%	993	337	11.7
68	Yankalilla Area School Yankalilla · Combined · R-12	Government	35.1 Lower 50%	970	389	14.4
69	Streaky Bay Area School Streaky Bay · Combined · U, R-12	Government	35.0 Lower 50%	977	276	11.8
70	Riverton and District High School Riverton · Secondary · 7-12	Government	34.5 Lower 50%	943	184	10.8
71	Booleroo Centre District School Booleroo Centre · Combined · R-12	Government	34.1 Lower 50%	970	168	11.6
72	Minlaton District School Minlaton · Combined · R-12	Government	34.0 Lower 50%	965	268	10.8
73	Kingston Community School Kingston Se · Combined · R-12	Government	33.9 Lower 50%	961	330	11.3
74	Kadina Memorial School Kadina · Combined · U, R-12	Government	33.7 Lower 50%	951	1,184	11.4
75	Seaford Secondary College Seaford · Secondary · U, 7-12	Government	33.3 Lower 50%	962	829	13.3
76	Ardrossan Area School Ardrossan · Combined · R-12	Government	33.2 Lower 50%	959	137	8.9
77	Coomandook Area School Coomandook · Combined · R-12	Government	32.8 Lower 50%	950	107	11.3
78	Goolwa Secondary College Goolwa · Secondary · 7-12	Government	32.6 Lower 50%	957	285	11.9
79	Reynella East College Reynella East · Combined · U, R-12	Government	32.6 Lower 50%	988	1,938	14.8
80	Yorketown Area School Yorketown · Combined · R-12	Government	32.3 Lower 50%	940	220	10.8
81	Penola High School Penola · Secondary · 7-12	Government	31.9 Lower 50%	933	113	8.4
82	Balaklava High School Balaklava · Secondary · U, 7-12	Government	31.8 Lower 50%	948	425	12.7
83	Mannum Community College Mannum · Combined · R-12	Government	31.6 Lower 50%	936	398	11.5
84	Kaurna Plains School Elizabeth · Combined · U, R-12	Government	31.2 Lower 50%	699	162	8.3
85	Avenues College Windsor Gardens · Combined · U, R-12	Government	30.7 Lower 50%	929	493	9.4
86	Quorn Area School Quorn · Combined · R-12	Government	30.7 Lower 50%	910	117	9.6
87	Meningie Area School Meningie · Combined · R-12	Government	29.8 Lower 50%	883	153	9.3
88	Burra Community School Burra · Combined · R-12	Government	29.6 Lower 50%	964	194	13.2
89	Eastern Fleurieu R-12 School Strathalbyn · Combined · U, R-12	Government	29.3 Lower 50%	981	1,332	13.4
90	Naracoorte High School Naracoorte · Secondary · 7-12	Government	29.3 Lower 50%	952	457	14.4
91	Hallett Cove School Hallett Cove · Combined · R-12	Government	29.1 Lower 50%	999	1,243	15.0
92	Moonta Area School Moonta · Combined · U, R-12	Government	29.0 Lower 50%	924	253	9.4
93	Keith Area School Keith · Combined · R-12	Government	28.8 Lower 50%	968	295	12.6
94	Grant High School Mount Gambier · Secondary · U, 7-12	Government	28.0 Lower 50%	954	978	14.0
95	Coober Pedy Area School Coober Pedy · Combined · R-12	Government	27.8 Lower 50%	785	175	7.3
96	John Pirie Secondary School Port Pirie · Secondary · U, 7-12	Government	27.6 Lower 50%	894	691	12.1
97	Berri Regional Secondary College Berri · Secondary · U, 7-12	Government	27.5 Lower 50%	935	662	13.0
98	Allendale East Area School Allendale East · Combined · R-12	Government	27.4 Lower 50%	926	134	10.8
99	Ocean View P-12 College Taperoo · Combined · U, R-12	Government	27.0 Lower 50%	918	629	11.2
100	Port Lincoln High School Port Lincoln · Secondary · U, 7-12	Government	26.7 Lower 50%	923	767	12.2

There are 123 public high schools in South Australia eligible for this list; the top 100 are shown. Australian Science and Mathematics School in Bedford Park is ranked first with a Success Index of 81.1 and an ICSEA of 1101. 100 of the top 100 are government schools and 0 are Catholic or independent; the median ICSEA across the list is 985.

The top 10 public high schools in South Australia for 2025 are: 1. Australian Science and Mathematics School (Bedford Park); 2. Glenunga International High School (Glenunga); 3. Marryatville High School (Marryatville); 4. Adelaide Botanic High School (Adelaide); 5. Norwood International High School (Magill); 6. Heathfield High School (Heathfield); 7. Adelaide High School (Adelaide); 8. Morialta Secondary College (Rostrevor); 9. Springbank Secondary College (Pasadena); 10. Unley High School (Netherby).

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Frequently asked questions

What is the best public secondary school in South Australia?

Australian Science and Mathematics School in Bedford Park ranks first among public high schools in South Australia with a Success Index of 81.1 out of 100 and an ICSEA of 1101.

How are public high schools in South Australia ranked?

Each school's Success Index combines five factors from ACARA's 2025 school profile data: ICSEA (50%), share of students in the top socio-educational quarter (15%), students per teacher (15%), five-year enrolment growth (10%) and five-year ICSEA trend (10%). Each factor is a percentile against schools of the same type nationally. Schools with fewer than 80 students are excluded.

How many public schools are in the top 100 public high schools in South Australia?

100 of the top 100 public high schools in South Australia are government schools; 0 are Catholic or independent.

Do these rankings include NAPLAN or ATAR results?

Not yet. ACARA does not publish school-level NAPLAN results in bulk, and ATAR results are released by state authorities in different formats. The Success Index uses the measures ACARA publishes for every school so that all schools are compared on identical data. Where a school publishes its own results we link to its website.