Back to mapACARA 48477
GovernmentCombinedKindy – Year 12Growing enrolments

PILBARA · Very Remote

Onslow School

Department of Education Western Australia

Address

Simpson Street Onslow 6710

Onslow · WA 6710

Ashburton

Phone

Contact number on Schools Online

View contact details →
Website
WA Schools Online

Government school profile & contact

Decision Index

41

Developing · Methodology

ICSEA

884

Below average

Students

166

Small (<200 students)

Student ratio

10.6:1

students per teacher

Community

—

0 parent reviews

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Decision Index

Verified ACARA data only — school environment, community context, and peer profile.

41

Decision Index

Developing

mid-range staffing

55% school environment · 45% community context · ACARA + ABS + WA Police verified data

Full methodology →

School environment

58

Staffing, stability, and resourcing from ACARA School Profile.

Student–teacher ratio

10.6:1

Score 63

More staff per student than 63% of 19 like-schools (ICSEA ±50).

Source: ACARA School Profile 2025; peer group ICSEA ±50

Staffing trend (5yr)

+6% ratio change

Score 48

Student–teacher ratio has increased over five years.

Source: ACARA School Profile 2008–2025

Enrolment stability (5yr)

+40.7%

Score 62

Enrolments have grown over five years.

Source: ACARA School Profile 2008–2025

Teaching staff share

60.9% teaching FTE

Score 58

Higher share of FTE staff in teaching roles than 58% of WA schools.

Source: ACARA School Profile 2025

Community context

20

Area socio-educational profile — context for who lives nearby, not teaching quality.

ICSEA community advantage

884

Score 8

Community socio-educational advantage at the 8th percentile among WA combined schools. Context only — not a measure of teaching quality.

Source: ACARA School Profile 2025

ICSEA trend (5yr)

-8.1%

Score 48

Community ICSEA has declined over five years.

Source: ACARA School Profile 2008–2025

Housing & economic resources

IER 987 (decile 5)

Score 32

Economic resources index higher than 32% of WA postcode areas (ABS SEIFA IER). Proxy for housing affordability context.

Source: ABS SEIFA 2021 — Postal Area (POA), Index of Economic Resources (IER)

Area safety (police district)

958.9 / 100k

Score 20

Pilbara District — lower offence rate than 20% of WA police districts (selected offences, FY to date). District-level indicator, not suburb-specific.

Source: WA Police Force — Crime Statistics 2024-25 (Financial Year to Date)

Peer profile

Who your child learns with — descriptive cohort data, not included in the Decision Index.

LBOTE students

39.0%

63th pct (WA)

39.0% LBOTE — higher than 63% of WA combined schools. Descriptive cohort data, not a quality rating.

Source: ACARA School Profile 2025

Indigenous students

37.0%

24th pct (WA)

37.0% Indigenous enrolment — cohort composition relative to WA schools.

Source: ACARA School Profile 2025

Top SEA quarter

9.0%

37th pct (WA)

9.0% of students from the top socio-educational advantage quarter — who your child learns alongside.

Source: ACARA School Profile 2025

Planned external data (not yet integrated)

  • · Median house price (ABS Census — not yet integrated)

We do not show scores for housing or crime until verified open datasets are joined.

Legacy Swan Score (ICSEA 70% + LBOTE 30%): 17 — still available for filtering.

Data insights

What the data tells you

Key facts from ACARA 2025 and historical trends — use alongside school visits and My School NAPLAN.

ICSEA (SES index)Declining -8.1%

884

Student–teacher ratioHigher ratio +6%

10.6:1

EnrolmentsUp +40.7%

166

800ICSEA 8841300
◎

Small (<200 students) — 166 students enrolled in 2025.

ACARA School Profile 2025

◈

Student-teacher ratio of 10.6:1 — more staff per student than 63% of 19 like-schools (similar ICSEA background).

ACARA 2025, peer group analysis

◇

39% of students speak a language background other than English at home.

ACARA School Profile 2025

◉

ICSEA declining — from 793 (2010) to 884 (2025), -8.1% over 15 years.

ACARA School Profile 2008–2025

◈

Student-teacher ratio has increased — 11.1:1 (2010) to 10.6:1 (2025), +6.0% over 5 years.

ACARA School Profile 2008–2025

↗

Enrolments have grown — +41% over 5 years (+48 students).

ACARA School Profile 2008–2025

N

NAPLAN score history is on My School (ACARA). School-level bulk NAPLAN is not in the free download — we link to the official source.

ACARA My School

◉

ICSEA 884 — compare NAPLAN progress against 19 like-schools on My School for fair academic context.

ACARA ICSEA methodology

⊕

Located in Very Remote — PILBARA education region.

ACARA School Location 2025

NAPLAN & attendance: View on My School →

All metric trends (ICSEA, LBOTE, enrolments…)

ICSEA (SES index)

884

Declining -8.1%

Index of Community Socio-Educational Advantage (500–1300+). Higher means students typically come from more advantaged backgrounds — use for like-school comparisons, not as a quality score.

5-year change vs 2020 · 2010–2025

ICSEA percentile

8

Declining -71.4%

This school's ICSEA rank among all Australian schools (0–100). Higher = higher relative advantage.

5-year change vs 2020 · 2010–2025

Student–teacher ratio

10.6:1

Higher ratio +6%

Students per full-time equivalent teacher. Lower usually means smaller class sizes and more staff attention.

5-year change vs 2020 · 2010–2025

Enrolments

166

Up +40.7%

Total student headcount over time. Shows whether the school is growing or shrinking.

5-year change vs 2020 · 2010–2025

Indigenous students

37.0%

Up +42.3%

Share of students who identify as Aboriginal and/or Torres Strait Islander.

5-year change vs 2020 · 2010–2025

LBOTE students

39.0%

Up +25.8%

Share of students with a language background other than English. LBOTE = Language Background Other Than English (ACARA).

5-year change vs 2020 · 2010–2025

Top SEA quarter

9.0%

Down -47.1%

Share of students in the most socio-educationally advantaged quarter at this school (ACARA SEA quartiles).

5-year change vs 2020 · 2010–2025

Source: ACARA School Profile 2008–2025. Trend badges show factual up/down vs ~5 years ago.

Student mix

Indigenous
37.0%
LBOTE
39.0%
Year range
Kindy – Year 12

SEA quartiles

Share of students per quarter

Bottom
47.0%
Lower mid
27.0%
Upper mid
18.0%
Top
9.0%

Local context

Onslow area

Suburb guide →

1

schools

884

avg ICSEA

10.6:1

avg ratio

1 Government

Catchment & local intake

WA government primary schools have defined local intake areas. Use Catchment Atlas to see boundaries on a map and check your address.

Boundaries sourced from WA Department of Education Schools Online

Like-school comparison

ICSEA ±50, same school type (ACARA like-schools approach)

Like-schools in WA

19

ICSEA 834–934

This school ratio

10.6:1

Better than 63% of peers

Peer average ratio

11.3:1

Avg 246 students

For NAPLAN progress against similar-background students, check My School student progress data. That is the fairest academic comparison ACARA provides.

Administration

Local government area
Ashburton
Governing body
Department of Education Western Australia
Education region
PILBARA
Remoteness
Very Remote
Teaching staff
16 (15.6 FTE)
ICSEA percentile (WA)
8th

Nearby & similar

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Data: ACARA School Profile 2025 · WA Dept of Education SLIP — Current Active Schools S1 2025 · Updated 2025

ACARA SML ID 48477