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Public schoolHigh school Years 7-9Co-edOuter Regional

Sanderson High School

Updated Oct 2026 · ACARA 2025Malak, Northern Territory 0812 · Darwin LGA

19.4/ 100
Success Index
Lower 50%

#22 of 23 high schools in NT
#1417 of 1,472 nationally

How is this calculated?
Students
328
-17% over 5 years
ICSEA
863
6th percentile nationally
Students per teacher
11.0
29.8 FTE teachers
Year range
7-9

About Sanderson High School

Sanderson High School is a public high school located in Malak, Northern Territory (0812), within the Darwin local government area. It caters for students from 7 to 9 and in 2025 enrolled 328 students (155 girls and 173 boys).

Sanderson High School has an ICSEA value of 863, indicating a community facing significant socio-educational disadvantage. That places it in the 6th percentile of Australian schools. 7% of students come from the top socio-educational quarter and 54% from the bottom quarter.

The school employs 31 teachers (29.8 full-time equivalent) and 16 non-teaching staff, giving a student-to-teacher ratio of about 11.0 to 1. Enrolments have fallen by 17% over the past five years.

On the Success Index, Sanderson High School scores 19.4 out of 100, placing it in the lower 50% of secondary schools nationally and 22nd of 23 secondary schools in NT (12th of 12 in the Darwin area).

Success Index breakdown

Each component is a percentile against schools of the same type across Australia.

  • Socio-educational advantage (ICSEA) (50%)ICSEA 863
  • Students in the top advantage quarter (15%)7% of students
  • Teacher resourcing (students per teacher) (15%)11.0 students per teacher
  • Enrolment growth vs local area (5 years) (10%)-17% enrolments since 2020 (area median +4%)
  • ICSEA trend (5 years) (10%)-17 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.

Sanderson High School
Bottom quarterLower middleUpper middleTop quarter
Girls
155
Boys
173
Language background other than English
71%
Indigenous students
48%

Enrolments by year level

How Sanderson High School's 328 students are spread across year levels in 2025.

Year 7 cohort
102

Enrolment trend

How enrolments at Sanderson High School have changed over the past decade.

2953674382015: 384 students2016: 375 students2017: 388 students2018: 401 students2019: 417 students2020: 395 students2021: 396 students2022: 352 students2023: 350 students2024: 345 students2025: 328 students201520172019202120232025
Total enrolments by year. Source: ACARA school profile data.

Free academic assessment

Is your child on track at Sanderson High School?

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.

  • Personalised learning plan mapped to the Australian Curriculum
  • English & Maths from Kindergarten to Year 12
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  • Your nearest centre: Success Tutoring Windsor Gardens

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Schools near Sanderson High School

Closest schools by straight-line distance, with their Success Index.

Similar schools

Government secondary schools in NT with a comparable ICSEA.

Frequently asked questions

Is Sanderson High School a public or private school?

Sanderson High School is a public (government) school run by the Northern Territory education department.

What year levels does Sanderson High School offer?

Sanderson High School offers 7 to 9. It is classified by ACARA as a secondary school.

How many students attend Sanderson High School?

In 2025, Sanderson High School had 328 enrolled students (155 girls, 173 boys), a change of -17% over five years.

What is the ICSEA of Sanderson High School?

Sanderson High School has an ICSEA (Index of Community Socio-Educational Advantage) of 863. The national average is 1000, so this indicates a community facing significant socio-educational disadvantage. ICSEA reflects the school community, not teaching quality.

How does Sanderson High School rank in NT?

Sanderson High School ranks 22nd of 23 secondary schools in Northern Territory on the Success Index (19.4/100), and 1417th of 1,472 nationally.

What is the student-to-teacher ratio at Sanderson High School?

Sanderson High School has about 11.0 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.

How big is the Year 7 cohort at Sanderson High School?

In 2025, Sanderson High School had 102 students in Year 7.

Is Sanderson High School co-ed?

Yes. Sanderson High School is a co-educational school enrolling both girls and boys.

What other schools are near Sanderson High School?

There are 10 other schools within 15 km of Sanderson High School 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 Sanderson High School?

The closest Success Tutoring centre is Success Tutoring Windsor Gardens, about 2619 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.